Flaw Size Acceptance Limits for a Stainless Steel Pressure Vessel

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Flaw Size Acceptance Limits for a Stainless Steel Pressure Vessel"

Transcription

1 Flaw Size Acceptance Limits for a Stainless Steel Pressure Vessel Consuelo Guzman-Leong Lucius Pitkin, Inc. Richland, Washington, U.S.A. Frederic A. Simonen, Ph.D. Lucius Pitkin, Inc. Richland, Washington, U.S.A. Stephen R. Gosselin, P.E. Lucius Pitkin, Inc. Richland, Washington, U.S.A ASME Pressure Vessels and Piping Conference July 14-18, 2013 Paris, France

2 Scope of Paper Develop flaw size acceptance thresholds for defects detected and characterized during inservice inspections of a stainless steel pressure vessel The approach used guidance from ASME Section XI Code Limits were based on elastic plastic fracture mechanics analyses that considered limit load and ductile tearing failure modes Fracture mechanics calculations employed the Failure Assessment Diagram Acceptable flaw sizes were calculated for several flaw aspect ratios and inspection intervals for axial shell welds Slide 2

3 Technical Basis ASME Section XI does not address vessel flaw size acceptance standards for stainless steel vessels For ferritic steel pressure vessels Section XI Table IWB presents allowable flaw size limits in terms of flaw depth, length and vessel thickness. These flaw size limits are based on linear elastic fracture mechanics calculations that assume a brittle fracture failure mode The 2-inch thick vessel was treated as a thick-walled stainless steel pipe Elastic plastic fracture mechanics methodologies in ASME Section XI Code Non-Mandatory Appendices C and H were applied Slide 3

4 Methodology Step 1: Calculate Stress Intensity Factor Step 2: Apply FAD Step 3: Calculate Fatigue Crack Growth Rates Obtain through-wall stress distributions from FEA calculations Apply Non-Mandatory Appendix A equations for stress intensity factors Apply Non-Mandatory Appendix H procedures Calculate Limit Load Apply Non-Mandatory Appendix C equations for stainless steel crack growth rates Slide 4

5 Assumptions For conservatism, all flaws were postulated to occur as surface breaking cracks, with semi-elliptical shapes, located at the inner or outer surface of the vessel surface having the highest level of tensile stress and/or fatigue crack growth rates A maximum allowable crack extension by ductile tearing of 6 mm was used Flaw lengths for growing fatigue crack depths were adjusted to maintain constant aspect ratios Consistent with ASME Section XI failure assessment methods, crack instability calculations were based on pressure induced primary membrane stresses Slide 5

6 Inputs For conservatism: fracture toughness properties for weld metals were used because data for weld toughness is consistently lower than for base metal toughness; yield and flow stress for base metal were used as these are lower than those for the weld metals The operating pressure and temperature were less than 400 psig and 150 F, with the primary membrane (hoop) stress < 16 ksi Conservative safety factors for Level A and B loads, were applied (pressure (2.7) and thermal (2.3) stresses) Selection of the aspect ratios (2, 3, 6, 10, 20, and 60) for flaws in axial welds was based on the ASME Section XI tables values for ferritic steel vessels Slide 6

7 Stress Intensity Factors: Step 1 Updated equations developed for ASME Section XI Appendix A were used to calculate stress intensity factors Calculations based on the stress intensity factor flaw model equations for a surface flaw in a flat plate of finite thickness at the deepest point crack depth a Stress profile through-the-weld thickness constants and stress intensity G coefficients No adjustment for crack tip plasticity was made, already accounted for in FAD Stress intensity factors as functions of crack depth and length were calculated for the thermal and pressure stresses from finite element analysis Slide 7

8 Failure Assessment Diagram (FAD): Step 2 ASME Code Section XI, Non-Mandatory Appendix H FAD exceedance checks determine acceptability for continued service Calculations were repeated for each initial crack depth and aspect ratio Flaw depths up to and including the (a/t) ratio of 0.75 Flaws allowed 6mm of crack extension by ductile tearing Allowable flaw sizes are identified as those that correspond to the acceptance region of the FAD curve and/or the 75 percent a/t cutoff Ductile tearing parameter, Vertical Axis K R FAD Limit Load Parameter, Horizontal Axis S r Cutoff Limit Load Sr-cutoff Slide 8

9 FAD: Step 2 (cont d) Ductile tearing parameter, Vertical Axis K R (K TOTAL /K R ) Total stress intensity factor included both pressure and thermal loads, K TOTAL J-integral resistance at ductile tearing of 6mm obtained from available test data, ->K R Negative K r values were treated as zero(s) when plotting against the FAD FAD Limit Load Parameter, Horizontal Axis S r SF P/P 0 Reference Limit Load Pressure (P 0 ) Cutoff Limit Load Sr-cutoff P L /P 0 Internal pressure at collapse limit load for axial flaw (P L ) Slide 9

10 Failure Assessment Diagram (FAD): Step 2 (cont d) Slide 10

11 Allowable Flaw Depths For flaw in axial weld No allowance for fatigue crack growth No consideration of inservice inspection interval Aspect Ratio Allowable Flaw Depth (in) Slide 11

12 Fatigue Crack Growth: Step 3 Water environment equations for fatigue crack growth rates in stainless steels developed for ASME Section XI Non-Mandatory Appendix C Surface breaking cracks were assumed to be located on the vessel surface having the highest level of tensile stress and/or fatigue crack growth rates The change in the stress intensity factor (cyclic stress range, KI (ksi in)) for applied loads at the weld location used the mean crack depth (a ) in cyclic flaw growth rate calculations Results are reported for fatigue crack growth corresponding to 10-year inspection intervals Slide 12

13 Results for Axial Weld Flaws These flaw depths (inches) ensure code margins against unstable crack growth per ASME Code Section XI fracture mechanics requirements, including fatigue crack growth between inservice inspections Aspect Ratio Inspection_Interval (years) Slide 13

14 ` Results (cont d) 2c = 3, a = 0.5 and t = 2 Acceptable Detected Crack Depths (a/t) 2c/a = 6 a/t = 0.25 Inspection Interval (yrs) Aspect Ratio (Flaw Length:Depth Ratio) Acceptable as long as inspection interval is <25 years Slide 14

15 Summary Flaw acceptance tables were established for a specific stainless steel vessel to address various flaw aspect ratios and inservice inspection intervals A special technical approach was needed because the current guidance provided by ASME Code Section XI is limited to ferritic steel vessels Evaluations were performed using the FAD methodology and procedures in Non-Mandatory Appendices A, C and H of ASME Code Section XI Insights gained from this work may be useful in developing a general ASME Section XI methodology for flaw acceptance tables and detailed fracture mechanics procedures Slide 15

C. PROCEDURE APPLICATION (FITNET)

C. PROCEDURE APPLICATION (FITNET) C. PROCEDURE APPLICATION () 495 INTRODUCTION ASSESSMENT OF SCC ASSESSMENT OF CORROSION FATIGUE STRESS CORROSION AND CORROSION FATIGUE ANALYSIS ASSESSMENT OF LOCAL THINNED AREAS 496 INTRODUCTION INTRODUCTION

More information

AC 2008-2887: MATERIAL SELECTION FOR A PRESSURE VESSEL

AC 2008-2887: MATERIAL SELECTION FOR A PRESSURE VESSEL AC 2008-2887: MATERIAL SELECTION FOR A PRESSURE VESSEL Somnath Chattopadhyay, Pennsylvania State University American Society for Engineering Education, 2008 Page 13.869.1 Material Selection for a Pressure

More information

PV Newsletter Monthly Publication from CoDesign Engineering Skills Academy

PV Newsletter Monthly Publication from CoDesign Engineering Skills Academy Volume 2012, Issue 11 November 15, 2012 PV Newsletter Monthly Publication from CoDesign Engineering Skills Academy Pressure Vessel Design Criteria The modes of failure assumed for the design of pressure

More information

Griffith theory of brittle fracture:

Griffith theory of brittle fracture: Griffith theory of brittle fracture: Observed fracture strength is always lower than theoretical cohesive strength. Griffith explained that the discrepancy is due to the inherent defects in brittle materials

More information

B. INTRODUCTION TO ASSESSMENT PROCEDURES FOR CRACKED COMPONENTS

B. INTRODUCTION TO ASSESSMENT PROCEDURES FOR CRACKED COMPONENTS B. INTRODUCTION TO ASSESSMENT PROCEDURES FOR CRACKED COMPONENTS 40 INTRODUCTION HOW ARE INTEGRITY, SECURITY OR CRITICAL CONDITIONS ANALYSED IN A CRACKED STRUCTURE? FRACTURE MECHANICS Critical conditions

More information

FAILURE MODES and MATERIALS PROPERTIES. Component failures. Ductile and Brittle Fracture COMPONENT FAILURES. COMPONENT FAILURE MODES examples:

FAILURE MODES and MATERIALS PROPERTIES. Component failures. Ductile and Brittle Fracture COMPONENT FAILURES. COMPONENT FAILURE MODES examples: FAILURE MODES and MATERIALS PROPERTIES MECH2300 - Materials Lecture 10 R. W. Truss Materials Engineering R.Truss@uq.edu.au COMPONENT FAILURES Structures lectures es on component es cause response in component

More information

IMPELLER FATIGUE ASSESSMENT USING AN S-N APPROACH

IMPELLER FATIGUE ASSESSMENT USING AN S-N APPROACH ENGINEERING PAPER 5244-08 IMPELLER FATIGUE ASSESSMENT USING AN S-N APPROACH Samuel Orr Engineering Analysis Manager Howden Technology AMCA International Engineering Conference Las Vegas, NV, USA 2 4 March

More information

MCEN 2024, Spring 2008 The week of Apr 07 HW 9 with Solutions

MCEN 2024, Spring 2008 The week of Apr 07 HW 9 with Solutions MCEN 2024, Spring 2008 The week of Apr 07 HW 9 with Solutions The Quiz questions based upon HW9 will open on Thursday, Apr. 11 and close on Wednesday, Apr 17 at 1:30 PM. References to A&J: Chapters 13,

More information

Why do the codes differ and How do they differ

Why do the codes differ and How do they differ Comparison of pressure vessel codes Why do the codes differ and How do they differ Presented by: Ray Delaforce 03/24/11 3/24/2011 By Ray Delaforce By Ray Delaforce These are the codes we are going to compare:

More information

316L Pipe Sizing Calculations and Tables

316L Pipe Sizing Calculations and Tables DISCUSSION For piping systems constructed with a minimum ¾ to a maximum 2-1/2 316L seamless pipe (A312). The physical dimensions and mechanical properties are listed below: Material: 316L : ¾ 2-1/2 Schedule

More information

Cracking Of Carbon Steel Components Due To Repeated Thermal Shock

Cracking Of Carbon Steel Components Due To Repeated Thermal Shock Cracking Of Carbon Steel Components Due To Repeated Thermal Shock J W H Price, M Chang and B Kerezsi Department of Mechanical Engineering, Monash University, PO Box 197, Caulfield East, VIC 3145, Australia

More information

A Proposed Method for Finding Stress and Allowable Pressure in Cylinders with Radial Nozzles

A Proposed Method for Finding Stress and Allowable Pressure in Cylinders with Radial Nozzles A Proposed Method for Finding Stress and Allowable Pressure in Cylinders with Radial Nozzles Les M. Bildy Codeware ABSTRACT A simple technique is presented for calculating the local primary stress from

More information

INJECTION MOLDING COOLING TIME REDUCTION AND THERMAL STRESS ANALYSIS

INJECTION MOLDING COOLING TIME REDUCTION AND THERMAL STRESS ANALYSIS INJECTION MOLDING COOLING TIME REDUCTION AND THERMAL STRESS ANALYSIS Tom Kimerling University of Massachusetts, Amherst MIE 605 Finite Element Analysis Spring 2002 ABSTRACT A FEA transient thermal structural

More information

There are three principle ways a load can be applied:

There are three principle ways a load can be applied: MATERIALS SCIENCE Concepts of Stress and Strains Stress-strain test is used to determine the mechanical behavior by applying a static load uniformly over a cross section or a surface of a member. The test

More information

Rules for the Installation, Inspection & Testing of Air Reservoirs (Other than on Locomotives) December 1994 (TC O-0-10)

Rules for the Installation, Inspection & Testing of Air Reservoirs (Other than on Locomotives) December 1994 (TC O-0-10) Rules for the Installation, Inspection & Testing of Air Reservoirs (Other than on Locomotives) December 1994 (TC O-0-10) PART I - GENERAL 1. Short Title 2. Scope 3. Definitions 4. General 5. Reservoir

More information

Fatigue :Failure under fluctuating / cyclic stress

Fatigue :Failure under fluctuating / cyclic stress Fatigue :Failure under fluctuating / cyclic stress Under fluctuating / cyclic stresses, failure can occur at loads considerably lower than tensile or yield strengths of material under a static load: Fatigue

More information

DESIGN TO PREVENT FATIGUE

DESIGN TO PREVENT FATIGUE W H I T E P A P E R DESIGN TO PREVENT FATIGUE Overview In 1954, two crashes involving the world s first commercial airliner, the de Havilland Comet, brought the words metal fatigue to newspaper headlines

More information

ATI 2205 ATI 2205. Technical Data Sheet. Duplex Stainless Steel GENERAL PROPERTIES. (UNS S31803 and S32205)

ATI 2205 ATI 2205. Technical Data Sheet. Duplex Stainless Steel GENERAL PROPERTIES. (UNS S31803 and S32205) ATI 2205 Duplex Stainless Steel (UNS S31803 and S32205) GENERAL PROPERTIES ATI 2205 alloy (UNS S31803 and/or S32205) is a nitrogen-enhanced duplex stainless steel alloy. The nitrogen serves to significantly

More information

CRITERIA FOR PRELOADED BOLTS

CRITERIA FOR PRELOADED BOLTS National Aeronautics and Space Administration Lyndon B. Johnson Space Center Houston, Texas 77058 REVISION A JULY 6, 1998 REPLACES BASELINE SPACE SHUTTLE CRITERIA FOR PRELOADED BOLTS CONTENTS 1.0 INTRODUCTION..............................................

More information

CH 6: Fatigue Failure Resulting from Variable Loading

CH 6: Fatigue Failure Resulting from Variable Loading CH 6: Fatigue Failure Resulting from Variable Loading Some machine elements are subjected to static loads and for such elements static failure theories are used to predict failure (yielding or fracture).

More information

Supporting New Build and Nuclear Manufacturing in South Africa

Supporting New Build and Nuclear Manufacturing in South Africa ASME Nuclear Codes and Standards Supporting New Build and Nuclear Manufacturing in South Africa Sandton, South Africa, October 7-8, 2008 Session 3 Section III - Component Design and Construction Ralph

More information

2. FRACTURE MECHANICS

2. FRACTURE MECHANICS 2. FRACTURE MECHANICS Igor Kokcharov 2.1 DEFECTS Structural materials have inner defects such as cracks, which are extreme stress concentrators. There are technological defects shown in diagrams A and

More information

Lap Fillet Weld Calculations and FEA Techniques

Lap Fillet Weld Calculations and FEA Techniques Lap Fillet Weld Calculations and FEA Techniques By: MS.ME Ahmad A. Abbas Sr. Analysis Engineer Ahmad.Abbas@AdvancedCAE.com www.advancedcae.com Sunday, July 11, 2010 Advanced CAE All contents Copyright

More information

HOW RESIDUAL STRESSES AFFECT PREDICTION OF BRITTLE FRACTURE

HOW RESIDUAL STRESSES AFFECT PREDICTION OF BRITTLE FRACTURE HOW RESIDUAL STRESSES AFFECT PREDICTION OF BRITTLE FRACTURE Michael R. Hill Mechanical and Aeronautical Engineering Department University of California, Davis mrhill@ucdavis.edu Tina L. Panontin Systems

More information

Structural Integrity Analysis

Structural Integrity Analysis Structural Integrity Analysis 1. STRESS CONCENTRATION Igor Kokcharov 1.1 STRESSES AND CONCENTRATORS 1.1.1 Stress An applied external force F causes inner forces in the carrying structure. Inner forces

More information

NOTCHES AND THEIR EFFECTS. Ali Fatemi - University of Toledo All Rights Reserved Chapter 7 Notches and Their Effects 1

NOTCHES AND THEIR EFFECTS. Ali Fatemi - University of Toledo All Rights Reserved Chapter 7 Notches and Their Effects 1 NOTCHES AND THEIR EFFECTS Ali Fatemi - University of Toledo All Rights Reserved Chapter 7 Notches and Their Effects 1 CHAPTER OUTLINE Background Stress/Strain Concentrations S-N Approach for Notched Members

More information

ON THE COLLAPSE OF A REINFORCED CONCRETE DIGESTER TANK

ON THE COLLAPSE OF A REINFORCED CONCRETE DIGESTER TANK ON THE COLLAPSE OF A REINFORCED CONCRETE DIGESTER TANK Luis A. Godoy and Sandra Lopez-Bobonis Department of Civil Engineering, University of Puerto Rico, Mayagüez, PR 00681-9041, Puerto Rico ABSTRACT The

More information

Simple design method

Simple design method method Aim of the design method 2 3 Content of presentation in a fire situation method of reinforced concrete slabs at 20 C Floor slab model Failure modes method of at Extension to fire behaviour Membrane

More information

Objectives. Experimentally determine the yield strength, tensile strength, and modules of elasticity and ductility of given materials.

Objectives. Experimentally determine the yield strength, tensile strength, and modules of elasticity and ductility of given materials. Lab 3 Tension Test Objectives Concepts Background Experimental Procedure Report Requirements Discussion Objectives Experimentally determine the yield strength, tensile strength, and modules of elasticity

More information

Investigation Of Heat Treating Of Railroad Wheels And Its Effect On Braking Using Finite Element Analysis

Investigation Of Heat Treating Of Railroad Wheels And Its Effect On Braking Using Finite Element Analysis Investigation Of Heat Treating Of Railroad Wheels And Its Effect On Braking Using Finite Element Analysis Kexiu Wang Richard Pilon Griffin Wheel Company Abstract This paper studies the heat treatment process

More information

TR-10-29. Technical Report. Damage tolerance analysis of canister inserts for spent nuclear fuel in the case of an earthquake induced rock shear load

TR-10-29. Technical Report. Damage tolerance analysis of canister inserts for spent nuclear fuel in the case of an earthquake induced rock shear load Technical Report TR-1-29 Damage tolerance analysis of canister inserts for spent nuclear fuel in the case of an earthquake induced rock shear load Peter Dillström, Tobias Bolinder Inspecta Technology AB

More information

Tensile Testing Laboratory

Tensile Testing Laboratory Tensile Testing Laboratory By Stephan Favilla 0723668 ME 354 AC Date of Lab Report Submission: February 11 th 2010 Date of Lab Exercise: January 28 th 2010 1 Executive Summary Tensile tests are fundamental

More information

Principles of Fracture Mechanics

Principles of Fracture Mechanics 8-1 CHAPTER 8 FAILURE PROBLEM SOLUTIONS Principles of Fracture Mechanics 8.1 This problem asks that we compute the magnitude of the maximum stress that exists at the tip of an internal crack. Equation

More information

different levels, also called repeated, alternating, or fluctuating stresses.

different levels, also called repeated, alternating, or fluctuating stresses. Fatigue and Dynamic Loading 1 Fti Fatigue fil failure: 2 Static ti conditions : loads are applied gradually, to give sufficient i time for the strain to fully develop. Variable conditions : stresses vary

More information

Technical Report Example (1) Chartered (CEng) Membership

Technical Report Example (1) Chartered (CEng) Membership Technical Report Example (1) Chartered (CEng) Membership A TECHNICAL REPORT IN SUPPORT OF APPLICATION FOR CHARTERED MEMBERSHIP OF IGEM DESIGN OF 600 (103 BAR) 820MM SELF SEALING REPAIR CLAMP AND VERIFICATION

More information

ME111 Lecture 16 1. ME111 Instructor: Peter Pinsky Class #16 November 1, 2000

ME111 Lecture 16 1. ME111 Instructor: Peter Pinsky Class #16 November 1, 2000 Toda s Topics ME111 Instructor: Peter Pinsk Class #16 November 1, 2000 Introduction to linear elastic fracture mechanics (LEFM). Problem 3 A center-cracked plate of AII 1144 steel ( C = 115MPa m ) has

More information

AN ANALYTICAL INVESTIGATION ON BOLT TENSION OF A FLANGED STEEL PIPE JOINT SUBJECTED TO BENDING MOMENTS

AN ANALYTICAL INVESTIGATION ON BOLT TENSION OF A FLANGED STEEL PIPE JOINT SUBJECTED TO BENDING MOMENTS March 213. Vol. 2, No.3 ISSN 235-8269 212 EAAS & ARF. All rights reserved AN ANALYTICAL INVESTIGATION ON BOLT TENSION OF A FLANGED STEEL PIPE JOINT SUBJECTED TO BENDING MOMENTS Md Riasat Azim Graduate

More information

CE Mechanics of Materials Lab. Louisiana State University. Laboratory Report No. 1. Hardness Test. Joshua Board

CE Mechanics of Materials Lab. Louisiana State University. Laboratory Report No. 1. Hardness Test. Joshua Board CE 3410 Mechanics of Materials Lab Louisiana State University Laboratory Report No. 1 Hardness Test by Joshua Board Table of Contents Purpose:... 3 Introduction:... 3 Apparatus and Test Procedures:...

More information

B.TECH. (AEROSPACE ENGINEERING) PROGRAMME (BTAE) Term-End Examination December, 2011 BAS-010 : MACHINE DESIGN

B.TECH. (AEROSPACE ENGINEERING) PROGRAMME (BTAE) Term-End Examination December, 2011 BAS-010 : MACHINE DESIGN No. of Printed Pages : 7 BAS-01.0 B.TECH. (AEROSPACE ENGINEERING) PROGRAMME (BTAE) CV CA CV C:) O Term-End Examination December, 2011 BAS-010 : MACHINE DESIGN Time : 3 hours Maximum Marks : 70 Note : (1)

More information

Brittle fracture and impact tests

Brittle fracture and impact tests Brittle fracture and impact tests Subjects of interest Chapter 12 Objective The brittle-fracture problem Notch-bar impact tests Ductile to metal transition temperature curve Metallurgical factors affecting

More information

LABORATORY EXPERIMENTS TESTING OF MATERIALS

LABORATORY EXPERIMENTS TESTING OF MATERIALS LABORATORY EXPERIMENTS TESTING OF MATERIALS 1. TENSION TEST: INTRODUCTION & THEORY The tension test is the most commonly used method to evaluate the mechanical properties of metals. Its main objective

More information

Figure 1: Typical S-N Curves

Figure 1: Typical S-N Curves Stress-Life Diagram (S-N Diagram) The basis of the Stress-Life method is the Wohler S-N diagram, shown schematically for two materials in Figure 1. The S-N diagram plots nominal stress amplitude S versus

More information

Sheet metal operations - Bending and related processes

Sheet metal operations - Bending and related processes Sheet metal operations - Bending and related processes R. Chandramouli Associate Dean-Research SASTRA University, Thanjavur-613 401 Table of Contents 1.Quiz-Key... Error! Bookmark not defined. 1.Bending

More information

Nonlinear Material Elastic Perfectly Plastic Material Response

Nonlinear Material Elastic Perfectly Plastic Material Response Nonlinear Material Elastic Perfectly Plastic Material Response Model an alloy steel plate with a thickness of 0.25 inch. Analytical Solution: If 15,000 lbs is applied at the right edge when the left edge

More information

Structures and Stiffness

Structures and Stiffness Structures and Stiffness ENGR 10 Introduction to Engineering Ken Youssefi/Thalia Anagnos Engineering 10, SJSU 1 Wind Turbine Structure The Goal The support structure should be optimized for weight and

More information

Numerical Analysis of Independent Wire Strand Core (IWSC) Wire Rope

Numerical Analysis of Independent Wire Strand Core (IWSC) Wire Rope Numerical Analysis of Independent Wire Strand Core (IWSC) Wire Rope Rakesh Sidharthan 1 Gnanavel B K 2 Assistant professor Mechanical, Department Professor, Mechanical Department, Gojan engineering college,

More information

Figure 12 1 Short columns fail due to material failure

Figure 12 1 Short columns fail due to material failure 12 Buckling Analysis 12.1 Introduction There are two major categories leading to the sudden failure of a mechanical component: material failure and structural instability, which is often called buckling.

More information

CHAPTER 3. NUMERICAL ANALYSIS

CHAPTER 3. NUMERICAL ANALYSIS 3.1 Scope of Numerical Work CHAPTER 3. NUMERICAL ANALYSIS This thesis work includes numerical analysis to simulate the crack growth retardation due to periodic overloads induced residual stress field at

More information

Stress-Strain Relationship

Stress-Strain Relationship (Strength of Materials) Dave Morgan Stress-Strain Relationship p. 1/21 The tension test: Stress-Strain Relationship p. 2/21 The tension test: Is a common standardised test that can

More information

Review from Mechanical Properties of Materials

Review from Mechanical Properties of Materials Fall 24 Review from Mechanical Properties of Materials Concept of Stress and Strain Figure 1 shows the behavior of a clindrical bod subjected to tension and compression. Tension specimen etends along its

More information

Fatigue Testing. Objectives

Fatigue Testing. Objectives Laboratory 8 Fatigue Testing Objectives Students are required to understand principle of fatigue testing as well as practice how to operate the fatigue testing machine in a reverse loading manner. Students

More information

Material Types and Properties

Material Types and Properties Material Types and Properties 1 Material Types There are many kinds of materials, but most of them can be divided into four groups: Metals - Metals are composed of one or more metallic elements and often

More information

North American Stainless

North American Stainless North American Stainless Flat Products Stainless Steel Grade Sheet 430 (S43000)/ EN 1.4016 Introduction: SS430 is a low-carbon plain chromium, ferritic stainless steel without any stabilization of carbon

More information

Mechanical & Non-Destructive Testing

Mechanical & Non-Destructive Testing Training Objective After watching the program and reviewing this printed material, the viewer will gain an understanding and become familiar with the various methods, equipment, and applications of mechanical

More information

PV Newsletter Monthly Publication from CoDesign Engineering Academy

PV Newsletter Monthly Publication from CoDesign Engineering Academy Volume 2012, Issue 4 April 15, 2012 PV Newsletter Monthly Publication from CoDesign Engineering Academy Low Temperature Operation The major concern for low temperature pressure vessels is brittle-fracture

More information

Characterization of ATI 2102 Lean Duplex Stainless Steel Pipe used for Water Distribution

Characterization of ATI 2102 Lean Duplex Stainless Steel Pipe used for Water Distribution Characterization of ATI 2102 Lean Duplex Stainless Steel Pipe used for Water Distribution Presenter: David Bergstrom Manager, Product Development, ATI Allegheny Ludlum Academic Education and Degrees: 1995

More information

METU DEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING

METU DEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING METU DEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING Met E 206 MATERIALS LABORATORY EXPERIMENT 1 Prof. Dr. Rıza GÜRBÜZ Res. Assist. Gül ÇEVİK (Room: B-306) INTRODUCTION TENSION TEST Mechanical testing

More information

MECHANICS OF MATERIALS

MECHANICS OF MATERIALS CHAPTER 2 MECHANICS OF MATERIALS Ferdinand P. Beer E. Russell Johnston, Jr. John T. DeWolf David F. Mazurek Lecture Notes: J. Walt Oler Texas Tech University Stress and Strain Axial Loading Normal Strain

More information

Mechanics of Materials-Steel

Mechanics of Materials-Steel Mechanics of Materials-Steel Structural Steel Structural steel considered one of the predominant materials for construction of buildings, bridges, towers and other structures. The preferable physical properties

More information

Ultrasonic Technique and Device for Residual Stress Measurement

Ultrasonic Technique and Device for Residual Stress Measurement Ultrasonic Technique and Device for Residual Stress Measurement Y. Kudryavtsev, J. Kleiman Integrity Testing Laboratory Inc. 80 Esna Park Drive, Units 7-9, Markham, Ontario, L3R 2R7 Canada ykudryavtsev@itlinc.com

More information

Mechanical Properties

Mechanical Properties Mechanical Properties Elastic deformation Plastic deformation Fracture Plastic Instability and the Ultimate Tensile Strength s u P s s y For a typical ductile metal: I. Elastic deformation II. Stable plastic

More information

5 Information Required for Assessment (Input)

5 Information Required for Assessment (Input) (01 May 2006) 5 Information Required for Assessment (Input) 5 Information Required for Assessment (Input)...5-1 5.1 Introduction...5-3 5.1.1 Flaw Information...5-3 5.1.1.1 Postulated Flaws...5-3 5.1.1.2

More information

Burst Pressure Prediction of Pressure Vessel using FEA

Burst Pressure Prediction of Pressure Vessel using FEA Burst Pressure Prediction of Pressure Vessel using FEA Nidhi Dwivedi, Research Scholar (G.E.C, Jabalpur, M.P), Veerendra Kumar Principal (G.E.C, Jabalpur, M.P) Abstract The main objective of this paper

More information

TENSILE TESTING PRACTICAL

TENSILE TESTING PRACTICAL TENSILE TESTING PRACTICAL MTK 2B- Science Of Materials Ts epo Mputsoe 215024596 Summary Material have different properties all varying form mechanical to chemical properties. Taking special interest in

More information

Theoretical and Practical Aspects of Thermo Mechanical Reliability in Printed Circuit Boards with Copper Plated Through Holes

Theoretical and Practical Aspects of Thermo Mechanical Reliability in Printed Circuit Boards with Copper Plated Through Holes Theoretical and Practical Aspects of Thermo Mechanical Reliability in Printed Circuit Boards with Copper Plated Through Holes Stefan Neumann, Nina Dambrowsky, Stephen Kenny Atotech Deutschland GmbH Berlin,

More information

Introduction to Structure and Properties Winter 2005 Final Exam March 17, 2005 TOTAL POINTS 37

Introduction to Structure and Properties Winter 2005 Final Exam March 17, 2005 TOTAL POINTS 37 Materials 101 Introduction to Structure and Properties Winter 005 Final Exam March 17, 005 Solutions TOTAL POINTS 37 Problem 1: Tensile Test and Plastic Deformation (10 Points) A copper rod is deformed

More information

Fatigue. 3. Final fracture (rough zone) 1. Fatigue origin. 2. Beach marks (velvety zone)

Fatigue. 3. Final fracture (rough zone) 1. Fatigue origin. 2. Beach marks (velvety zone) Fatigue Term fatigue introduced by Poncelet (France) 1839 progressive fracture is more descriptive 1. Minute crack at critical area of high local stress (geometric stress raiser, flaws, preexisting cracks)

More information

MSE200 Lecture 7 (CH ) Mechanical Properties I Instructor: Yuntian Zhu Objectives/outcomes: You will learn the following:

MSE200 Lecture 7 (CH ) Mechanical Properties I Instructor: Yuntian Zhu Objectives/outcomes: You will learn the following: MSE200 Lecture 7 (CH. 6.2-6.4) Mechanical Properties I Instructor: Yuntian Zhu Objectives/outcomes: You will learn the following: Stresses and strains in solids. Normal and shear stresses. Elastic and

More information

Chapter 4 Strain and Material Relations

Chapter 4 Strain and Material Relations CIVL 222 STRENGTH OF MATERIALS Chapter 4 Strain and Material Relations Terminology 1. Displacement 2. Deformation 3. Strain 4. Average Axial Strain 5. Shearing Strain 6. Poisson s Ratio 7. Mechanical Properties

More information

F4E Analysis & Codes Group on behalf of V. Barabasch et al. (ITER IO)

F4E Analysis & Codes Group on behalf of V. Barabasch et al. (ITER IO) ITER Department t ITER Codes and Standards F4E Analysis & Codes Group on behalf of V. Barabasch et al. (ITER IO) Petten, 16th April 2010 Slide 1 Summary 1) Introduction 2) Main regulatory documents for

More information

For further information contact Penspen Integrity

For further information contact Penspen Integrity This document was downloaded from the Penspen Integrity Virtual Library For further information contact Penspen Integrity Address: Penspen Integrity Hawthorn Suite Units 7-8 St. Peter's Wharf St. Peter's

More information

Question 6.5: A steel bar 100 mm (4.0 in.) long and having a square cross section 20 mm

Question 6.5: A steel bar 100 mm (4.0 in.) long and having a square cross section 20 mm 14:440:407 Ch6 Question 6.3: A specimen of aluminum having a rectangular cross section 10 mm 12.7 mm (0.4 in. 0.5 in.) is pulled in tension with 35,500 N (8000 lb f ) force, producing only elastic deformation.

More information

CE591 Fall 2013 Lecture 26: Moment Connections

CE591 Fall 2013 Lecture 26: Moment Connections CE591 Fall 2013 Lecture 26: Moment Connections Explain basic design procedure for moment (FR) connections Explain considerations for connections in momentresisting frames for seismic demands Describe problems

More information

North American Stainless

North American Stainless North American Stainless Flat Products Stainless Steel Sheet T409 INTRODUCTION NAS 409 is an 11% chromium, stabilized ferritic stainless steel. It is not as resistant to corrosion or high-temperature oxidation

More information

FITNET Fitness-for-service Fracture Module SOFTWARE

FITNET Fitness-for-service Fracture Module SOFTWARE Nenad Gubeljak Associate Professor University of Maribor Faculty of Mechanical Engineering Mustafa Koçak European Fitness-for-Service Network FITNET coordinator GKSS Research Centre Institute for Materials

More information

Optimising plate girder design

Optimising plate girder design Optimising plate girder design NSCC29 R. Abspoel 1 1 Division of structural engineering, Delft University of Technology, Delft, The Netherlands ABSTRACT: In the design of steel plate girders a high degree

More information

Joining Methods. Fit between plastics parts

Joining Methods. Fit between plastics parts Joining Methods Molding one part vs. separate components A major advantage of molding plastics parts is that you can now mold what were previously several parts into one part. These include many of the

More information

Statics and Mechanics of Materials

Statics and Mechanics of Materials Statics and Mechanics of Materials Chapter 4 Stress, Strain and Deformation: Axial Loading Objectives: Learn and understand the concepts of internal forces, stresses, and strains Learn and understand the

More information

Yield Criteria for Ductile Materials and Fracture Mechanics of Brittle Materials. τ xy 2σ y. σ x 3. τ yz 2σ z 3. ) 2 + ( σ 3. σ 3

Yield Criteria for Ductile Materials and Fracture Mechanics of Brittle Materials. τ xy 2σ y. σ x 3. τ yz 2σ z 3. ) 2 + ( σ 3. σ 3 Yield Criteria for Ductile Materials and Fracture Mechanics of Brittle Materials Brittle materials are materials that display Hookean behavior (linear relationship between stress and strain) and which

More information

PIPE INDEX STAINLESS STEEL WELDED / SEAMLESS PIPE DIMENSION AND WEIGHT 2

PIPE INDEX STAINLESS STEEL WELDED / SEAMLESS PIPE DIMENSION AND WEIGHT 2 INDEX STAINLESS STEEL WELDED / SEAMLESS DIMENSION AND WEIGHT STAINLESS STEEL WELDED TYPE 0L S, ALLOWABLE WORKING PRESSURE STAINLESS STEEL WELDED TYPE 0 ALLOWABLE WORKING PRESSURE STAINLESS STEEL WELDED

More information

Mechanics of Materials

Mechanics of Materials Mechanics of Materials Notation: a = acceleration A = area (net = with holes, bearing = in contact, etc...) ASD = allowable stress design d = diameter of a hole = calculus symbol for differentiation e

More information

DESIGN AND ANALYSIS OF BRICK LINED AUTOCLAVES FOR THE MINING INDUSTRY. Paul Tucker SNC-Lavalin Inc., Toronto, Canada

DESIGN AND ANALYSIS OF BRICK LINED AUTOCLAVES FOR THE MINING INDUSTRY. Paul Tucker SNC-Lavalin Inc., Toronto, Canada Proceedings of the ASME 2014 Pressure Vessels & Piping Conference PVP2014 July 20-24, 2014, Anaheim, California, USA PVP2014-28852 DESIGN AND ANALYSIS OF BRICK LINED AUTOCLAVES FOR THE MINING INDUSTRY

More information

MECHANICS OF SOLIDS COMPRESSION MEMBERS TUTORIAL 1 STRUTS. On completion of this tutorial you should be able to do the following.

MECHANICS OF SOLIDS COMPRESSION MEMBERS TUTORIAL 1 STRUTS. On completion of this tutorial you should be able to do the following. MECHANICS OF SOLIDS COMPRESSION MEMBERS TUTORIAL 1 STRUTS You should judge your progress by completing the self assessment exercises. On completion of this tutorial you should be able to do the following.

More information

Adam Zaborski handouts for Afghans

Adam Zaborski handouts for Afghans Tensile test Adam Zaborski handouts for Afghans Outline Tensile test purpose Universal testing machines and test specimens Stress-strain diagram Mild steel : proportional stage, elastic limit, yielding

More information

There are as many reasons to test metals as there are metals:

There are as many reasons to test metals as there are metals: Testing Their Mettle Metals testing procedures ensure quality in raw materials and finished products BY BILL O NEIL, ADRIAN RIDDICK, FRANK LIO, PAUL KING, CHRIS WILSON, AND PATTY HARTZELL There are as

More information

Failure pressure of straight pipe with wall-thinning under

Failure pressure of straight pipe with wall-thinning under Failure pressure of straight pipe with wall-thinning under internal pressure Masayuki KAMAYA, Institute of Nuclear Safety System, Inc., (corresponding author) Address: 64 Sata Mihama-cho, Fukui, JAPAN

More information

ALLOY 2205 DATA SHEET

ALLOY 2205 DATA SHEET ALLOY 2205 DATA SHEET UNS S32205, EN 1.4462 / UNS S31803 GENERAL PROPERTIES ////////////////////////////////////////////////////// //// 2205 (UNS designations S32205 / S31803) is a 22 % chromium, 3 % molybdenum,

More information

ASME Boiler and Pressure Vessel Code vs. PED and EN-standards and nuclear safety requirements. Juha Purje Inspecta Tarkastus Oy

ASME Boiler and Pressure Vessel Code vs. PED and EN-standards and nuclear safety requirements. Juha Purje Inspecta Tarkastus Oy ASME Boiler and Pressure Vessel Code vs. PED and EN-standards and nuclear safety requirements Juha Purje Inspecta Tarkastus Oy 1 2 Pressure Equipment Directive (PED) or ASME The PED shall be applied to

More information

Fatigue crack propagation

Fatigue crack propagation 1 (20) Repetition Ð Crack initiation and growth Small cracks Shear driven Interact with microstructure Mostly analyzed by continuum mechanics approaches Large cracks Tension driven Fairly insensitive to

More information

Advantages of Steel as a Structural Material

Advantages of Steel as a Structural Material CHAPTER Structural Steel Design LRFD Method INTRODUCTION TO STRUCTURAL STEEL DESIGN Third Edition A. J. Clark School of Engineering Department of Civil and Environmental Engineering Part II Structural

More information

SCRATCH HARDNESS MEASUREMENT USING MECHANICAL TESTER

SCRATCH HARDNESS MEASUREMENT USING MECHANICAL TESTER SCRATCH HARDNESS MEASUREMENT USING MECHANICAL TESTER Prepared by Duanjie Li, PhD 6 Morgan, Ste156, Irvine CA 92618 P: 949.461.9292 F: 949.461.9232 nanovea.com Today's standard for tomorrow's materials.

More information

EVALUATION ACCORDING TO ASTM F

EVALUATION ACCORDING TO ASTM F Bodycote Report EVALUATION ACCORDING TO ASTM F 2023 Evaluation of the chlorine resistance according to ASTM F 2023 of the PB pipe material PB4267 GREY Mattias Svedberg RESTRICTED DISTRIBUTION SE-611 82

More information

API. Defined Procedure. for the. Ultrasonic Examination. Ferritic Welds

API. Defined Procedure. for the. Ultrasonic Examination. Ferritic Welds API Defined Procedure for the Ultrasonic Examination of Ferritic Welds API UT 2 This Procedure Defines the Recommended Techniques for the API Qualification of Ultrasonic Examiners Certification Program.

More information

SPECIFICATIONS, LOADS, AND METHODS OF DESIGN

SPECIFICATIONS, LOADS, AND METHODS OF DESIGN CHAPTER Structural Steel Design LRFD Method Third Edition SPECIFICATIONS, LOADS, AND METHODS OF DESIGN A. J. Clark School of Engineering Department of Civil and Environmental Engineering Part II Structural

More information

Experiment: Fatigue Testing

Experiment: Fatigue Testing Experiment: Fatigue Testing Objectives - To demonstrate the use of the Instron servohydraulic testing machine for testing specimens subjected to cyclic (fatigue) loadings. - To analytically approximate

More information

Fatigue. David Roylance Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge, MA

Fatigue. David Roylance Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge, MA Fatigue David Roylance Department of Materials Science and Engineering Massachusetts Institute of Technology Cambridge, MA 02139 May 1, 2001 Introduction The concept of fatigue arose several times in the

More information

Pressure vessel basics for all engineers

Pressure vessel basics for all engineers Pressure vessel basics for all engineers by Sharjeel Aslam Faiz 1. Contents 2. Preliminary Design... 3 3. Loads... 3 4. Detailed design... 3 5. Information in-flow to a fabrication drawing... 4 6. Information

More information

Objective To conduct Charpy V-notch impact test and determine the ductile-brittle transition temperature of steels.

Objective To conduct Charpy V-notch impact test and determine the ductile-brittle transition temperature of steels. IMPACT TESTING Objective To conduct Charpy V-notch impact test and determine the ductile-brittle transition temperature of steels. Equipment Coolants Standard Charpy V-Notched Test specimens Impact tester

More information

G1RT-CT-2001-05071 D. EXAMPLES F. GUTIÉRREZ-SOLANA S. CICERO J.A. ALVAREZ R. LACALLE W P 6: TRAINING & EDUCATION

G1RT-CT-2001-05071 D. EXAMPLES F. GUTIÉRREZ-SOLANA S. CICERO J.A. ALVAREZ R. LACALLE W P 6: TRAINING & EDUCATION D. EXAMPLES 316 WORKED EXAMPLE I Infinite Plate under fatigue Introduction and Objectives Data Analysis 317 INTRODUCTION AND OBJECTIVES One structural component of big dimensions is subjected to variable

More information

Description of mechanical properties

Description of mechanical properties ArcelorMittal Europe Flat Products Description of mechanical properties Introduction Mechanical properties are governed by the basic concepts of elasticity, plasticity and toughness. Elasticity is the

More information