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ASME_PTB-5-2013_cont_0101 | Stress (Mechanics) | Fatigue (Material)
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Description: FFS
Section VIII – Division 3
Copyright c 2013 by the American Society of Mechanical Engineers.
. No reproduction may be made of this material without written consent of ASME. Copyright c 2013 by the American Society of Mechanical Engineers. PE Kevin Haley Ashwin Padmala Structural Integrity Associates.PTB-5-2013 ASME Section VIII Division 3 Example Problem Manual Prepared by: Daniel T. Peters. Inc.
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...........2 Example Problem E-KD-2.......................................................................................................................................................... 4 2..........................2 – Determination of Design Pressure in Cylindrical Vessel – Dual Layered Vessel ....PTB-5-2013 TABLE OF CONTENTS Foreword ...................2 – Calculation of Fracture Toughness based on Charpy Impact Tests (KM-251) ........1 – Linear Elastic Stress Analysis ..........................1......................................................................... 13 4...... 45 PART 5 .............................................................................................................................................................2.. No reproduction may be made of this material without written consent of ASME....................2 Example Problem E-KM-2..........3 Organization and Use ................................................................................... 4 2...................8 Example Problem E-KD-2........................ 22 4........................................... 34 4.....................................................................................2 Calculation Precision ....2......... 6 3 Example Problems Materials ...1 – Determination of Design Pressure in Cylindrical Vessel – Monobloc Vessel ........................................... 9 4 Example Problems General Design Issues..............1 General........................7 Example Problem E-KD-2.....................3 – Ratcheting Assessment Elastic-Plastic Stress Analysis ..................... 36 4.....................................................1................ 8 PART 4 ................4 Example Problem E-KD-2..................................................................................................................4 – Generate a Stress-Strain Curve for Use in Elastic-Plastic Finite Element Analysis ......................................... 1 1 General Requirements...................................................................... 10 4..........3 Tables................................................................................... 48 iii c Copyright 2013 by the American Society of Mechanical Engineers.................................................................................................................................................................3....... 14 4..................................................................................1 – Elastic Plastic Analysis ................... 47 5 Example Problems Fatigue Assessment ......................................................................................................................................... 26 4...........................1................... 7 3........................................................... 2 1...................................... 7 3..............................................................1 Example Problem E-KM-2.......................................................................................................................................................... 10 4......................................... viii PART 1 ......6 Example Problem E-KD-2..................................................2 – Protection Against Local Failure (Elastic-Plastic Analysis) ............................................................................................................................................................................................ ....5 Example Problem E-KD-2........... 2 1............................................................ 2 PART 2 .................................................................................................................................. 3 2 Example Problem Descriptions Part Contents ..................................................3..................................................... 4 2.........................1............................................. 2 1....1 Introduction .....................................................2......................................................................3 Example Problem E-KD-2.................................................. 4 PART 3 .............................1 – Evaluation of Test Locations for Cylindrical Forgings in Accordance with KM-2 .....................................................1 Example Problem E-KD-2...............2 – Elastic Stress Analysis Protection Against Local Failure KD-247 ...............2.............2 Scope ............................
..1 Example Problem E-KD-3........ 61 6...2 Example Problem E-KD-5...................................1. 88 11.................. 84 PART 11 ..... 76 8....................................................................................................................................................................... 81 9.......................................................................... 78 PART 9 .................................1................................1.........1......................... 73 PART 8 ..................................................2 Example Problem E-KD-3......................................1..... 60 6 Example Problems Life Assessment Using Fracture Mechanics ....................................... ................................................. 56 PART 6 ..........................1 – Determine the Design Life of a Vessel from E-KD-2..................................................................... 80 9 Example Problems on Residual Stresses in Multiwall Vessels .............. 87 11.....1 Example Problem E-AE-2...........................1................................................1 – Determine Residual Stresses in Autofrettaged Cylinder Wall with known Autofrettage Pressure .........2 – Blind End Dimensions and Corner Stresses in a Vessel without Detailed Stress Analysis – Thin Wall Pressure Vessel .......................1.... 81 PART 10 ................................................................................................. 51 5....................1 Example Problem E-KD-4......................................2.2 – Alternative Evaluation of Stresses in Threaded End Closures ....1 – Determination of Hydrostatic Test Pressure in Cylindrical Vessel ........ No reproduction may be made of this material without written consent of ASME..............................................................................................2 Example Problem E-AE-2. 70 7.... 86 11 Example Problems Using the Methods of Appendix E ........2 – Determine the Autofrettage Pressure in a Cylinder Wall with known Residual ID Tangential Strain ..............1 – Blind End Dimensions and Corner Stresses in a Vessel without Detailed Stress Analysis – Thick Wall Pressure Vessel ......1....................................2 – Evaluation of Leak-Before-Burst in Cylindrical Vessel – Dual Layered Vessel .......... 48 5......................................................................................................................................1......................................................................... 84 10................................PTB-5-2013 5.........1............1 Example Problem E-KD-6....................................................................................................2 Example Problem E-KD-6.................1 – Evaluation of Leak-Before-Burst in Cylindrical Vessel – Monobloc Vessel .........1 Example Problem E-KD-5..1........ 91 iv c Copyright 2013 by the American Society of Mechanical Engineers..............................................................................................................................................................................1 – Thread Load Distribution ................................................ 70 7......................................................................................................... 83 10 Example Problems in Determination of Hydrostatic Test Pressure ........4 Example Problem E-KD-3............................... 75 8 Example Problems in Closures and Connections ....1 – Dual Wall Cylindrical Vessel Stress Distribution ..............................................................................................................................................1 61 PART 7 ..... 52 5...................1 Example Problem E-KT-3........1..3 – Fatigue Assessment of Welds – Elastic Analysis and Structural Stress.................................. 89 References ............... 87 11.......................... 69 7 Example Problems on Residual Stresses using Autofrettage ..................1 – Evaluation of a Connection in a 60 ksi Pressure Vessel at 100°F .....................................................................................3 Example Problem E-AE-2.... 76 8...1.................................................................3 Example Problem E-KD-3.......................1 Example Problem E-KD-8..................................................................1....4 – Non-Welded Vessel using Design Fatigue Curves ........
..........2...PTB-5-2013 LIST OF TABLES Table 1 – Summary of Example Problems ....4-2 – Calculated Stress Intensities and other Values for Fatigue ......................... 1st cycle ...2...... Division 3....0) with 2 TPI ACME thread with full radius root .................. 46 Table 5 – E-KD-3...................................... 25 Figure 12 – E-KD-2..............1-6 – Results of the Elastic-Plastic Analysis for LC #2 at a Factored Load of 57....... ..000 psig.................... 57 Table 6 – E-KD-3..1-2 – KD-247 Triaxial Stress Criteria .................................8 g.............600 psi and gravitational load of 1......3-2 – von Mises Stress Plot for Hydrostatic Test Pressure of 57......2.................1.........................3 .............. 24 Figure 11 – E-KD-2...1-1 – Stress Distribution in Monoblock Open End Shell .................................2..........1-2 – Stress Distribution in Monoblock Closed End Shell ............. 17 Figure 6 – E-KD-2............ 90 LIST OF FIGURES Figure 1 – E-KD-2......2-1 – Contour Plot of the Strain Limit.1-5 – Results of the Elastic-Plastic Analysis for LC #1 at a Factored Load of 81....2................1-1 – ASME Section VIII Division 3 Monobloc Vessel Configuration (Y = 2.............0 g.... 13 Table 3 – E-KD-2.........600 psi and gravitational load of 1......2................. 29 Figure 15 – E-KD-2.1.................................. 19 Figure 7 – E-KD-2................Local Criteria .....................................1-7 – Results of the Elastic-Plastic Analysis for LC #2 at a Factored Load of 57....... Equivalent Plastic Strain .. KD-240 ASME Code – Design Pressure .............2-2 – Contour Plot of Equivalent Plastic Strain......................600 psig ..................2..... No reproduction may be made of this material without written consent of ASME....................1-3 – Load and Boundary Conditions on the Monobloc Model......2....1-1 – Thread Load Distribution ........................000 psi and acceleration of 1.........2............................. 59 Table 8 – E-AE-2.. Equivalent Plastic Strain......1....................................... 58 Table 7 – E-KD-3......4-3 – Values for Interpolation from Table KD-320..2.... 29 Figure 16 – E-KD-2...2.1-2 – Mesh of the Monobloc Vessel with Detailed Views of the Blind End.............2....... ε peq . 27 Figure 14 – E-KD-2.................................................................................1..................... 21 Figure 9 – E-KD-2....1..... 22 Figure 10 – E-KD-2........... 15 Figure 4 – E-KD-2...............2-3 – Elastic-Plastic Strain Limit Ratio Results for Local Failure Analysis Results at 57.................3-3 – Equivalent Plastic Strain for Hydrostatic Test Pressure of 57..... 20 Figure 8 – E-KD-2.....3....................... 45 Table 4 – E-KD-2.................................1.......1-4 – Results of the Elastic-Plastic Analysis for LC #1 at a Factored Load of 81.....600 psig ... 12 Figure 3 – E-KD-2.... 11 Figure 2 – E-KD-2....2..............1 for Figure KD-320............. Closure and Body Threaded Connection ....................2.....4-1 – Principal Stresses in Cylinder ...000 psi and acceleration of 1..3-4 – von Mises Stress Plot for Operating Pressure of 40......................8g...1-1 – Tabulated Stresses from Figures E-KD-2..1-1 – Results of the Elastic Analysis Using Criterion from Figure KD-240 of the 2010 Section VIII...... 16 Figure 5 – E-KD-2.................600 psi .... von Mises Stress ................................2....... 26 Figure 13 – E-KD-2..................... von Mises Stress ........3.............1.. εL ...............3-1 – Loads and Boundary Conditions on the Monobloc Model for Ratcheting Assessment ...0 g.... 30 v c Copyright 2013 by the American Society of Mechanical Engineers................1-1 and -2 at Corresponding Design Pressure ...... 4 Table 2 – E-KD-2....
.......................... Longitudinal Direction Semi-Elliptical Shape (API 579-1 / ASME FFS-1 Figure C.................3..........................................1-7 –Stress Classification Lines (SCLs) in the Body Shell Region Away from Discontinuities – Stress Intensity (psi) ............................ Crack Depth .......1-6 –Stress Classification Lines (SCLs) in the First Thread and Undercut Regions – Stress Intensity (psi)....................................................................... 43 Figure 30 – E-KD-2........3......1-2 – Cylinder – Surface Crack...3................................. εL in the overall model – Ratcheting Criteria ..............1-3 – Crack Size vs....................15) .....................1-8 –Stress Classification Lines (SCLs) in the Blind End Region – Stress Intensity (psi) .................................000 psig..... 50 Figure 33 – E-KD-3............ 31 Figure 19 – E-KD-2.. 38 Figure 25 – E-KD-2....................................2...................................1-5 – Results of Elastic Analysis...........................1...................3-8 – Contour Plot of the Strain Limit...........500 psi ....................... 73 vi c Copyright 2013 by the American Society of Mechanical Engineers...1 ...3-5 – Equivalent Plastic Strain for Operating Pressure of 40.......1...................3-1 – Stress Distribution in Monoblock Open End Shell from E-KD-2.......................................... End of the 3rd cycle ..1-1 – Stress Distribution in Vessel Wall........3..................... 30 Figure 18 – E-KD-2........1-1 – Stress through the Vessel Wall due to Operating Pressure (40 ksi) ...3-9 – Contour Plot of the Total Accumulated Damage.............................................................3......... 1st cycle ................................................. 39 Figure 26 – E-KD-2................ End of the 3rd cycle .....000 psig...........1-3 – Mesh of the Monobloc Vessel with Detailed Views of the Blind End and Body Thread Components............. 43 Figure 31 – E-KD-3....1-4 – Load and Boundary Conditions for the FE Model ..... Number of Cycles ........1.... .............3........ 41 Figure 28 – E-KD-2........................................................................................... 64 Figure 36 – E-KD-4............. 33 Figure 22 – E-KD-2..............................................1...1.......1-5 – Failure Assessment Diagram for E-KD-4.1. No reproduction may be made of this material without written consent of ASME.20) ..... 36 Figure 23 – E-KD-2...............1....................................................1-2 – Axisymmetric FE Model .............. 66 Figure 38 – E-KD-4....... 33 Figure 21 – E-KD-2......3........................1-1 – ASME Section VIII Division 3 Monobloc Vessel Configuration with 2 TPI ACME thread with Full Radius Root ........................1 Evaluated at 24..........................1-4 – Example of a Failure Assessment Diagram (from API 579-1 / ASME FFS-1 Fig 9..........................................................................1...................PTB-5-2013 Figure 17 – E-KD-2............................ 62 Figure 35 – E-KD-4................... 49 Figure 32 – E-KD-3....................................... 42 Figure 29 – E-KD-2...........................2........... 32 Figure 20 – E-KD-2................. Stress Intensity in Deformed State for Design Pressure and the Critical Locations through the Vessel Requiring Stress Evaluation .................................. 65 Figure 37 – E-KD-4.....000 psig..........2...1-2 – Stress Intensity Factor for the Crack and Aspect Ratio vs...........3......................1...........................................4-1 – True Stress – True Strain Curve for SA-723 Grade 2 Class 2 ......................................2.....3-7 – Equivalent Plastic Strain for Operating Pressure of 40......................................................................... 40 Figure 27 – E-KD-2......1...... 37 Figure 24 – E-KD-2........................................................2.....................................................................2......... 56 Figure 34 – E-KD-4......... 67 Figure 39 – E-KD-5..................................1..................2-1 – Stress Distribution In Vessel Wall ................. Dεt – End of 3rd Operating cycle .......................................................................................................3-6 – von Mises Stress Plot for Operating Pressure of 40..................................................
................. 76 Figure 41 – E-KD-6........................1....... 88 vii c Copyright 2013 by the American Society of Mechanical Engineers...............................................1-1 – Typical High Pressure Connection (from Appendix H of ASME Section VIII.................. 79 Figure 42 – E-KD-8................ .................................1............2-1 – Dimensions of Blind End of a Thick Walled Pressure Vessel (from Figure E-110) ...............1-1 – Stress Distribution In Dual Wall Vessel Liner and Body ......1............. 82 Figure 43 – E-AE-2............................2-1 – Circumferential Stress at First Thread in Vessel Closure using KD631...2..................................................... Division 3) ..................PTB-5-2013 Figure 40 – E-KD-6...........2 ............... No reproduction may be made of this material without written consent of ASME................................................
Division 3.org for more information. This publication is provided to illustrate some of the design calculations and methodologies used in the ASME B&PV Code. Division 3 include: • Use of elastic-plastic finite element analysis in design of pressure equipment • One of the lowest design margins which was originally published at 2. and provides lifelong learning and technical exchange opportunities benefiting the engineering and technology community. “ASME Section VIII.8 • Use of high strength materials for the pressure equipment used in manufacture of high pressure equipment • Stringent requirements on fracture toughness for materials used in construction • Complete volumetric and surface examination after hydrotest • The use of fracture mechanics for evaluation of design life assessment in all cases where “Leak-Before-Burst” cannot be shown • Consideration of beneficial residual stresses in the evaluation of the design life of vessels ASME contracted with Structural Integrity Associates.asme. The Committee continues to refine and develop the Standard to this day. the American Society of Mechanical Engineers (ASME) is a professional notfor-profit organization with more than 127. This is an attempt at covering some of the most common ones. This was based on recommendations made by the Operations. Applications.0 and then lowered to 1.000 psi. Visit www. No reproduction may be made of this material without written consent of ASME. Established in 1880.PTB-5-2013 FOREWORD In the 1980’s. science and practice of mechanical and multidisciplinary engineering and allied sciences. and Components Technical Committee of the ASME Pressure Vessel and Piping Division. Division 3 Example Problem Manual. Section VIII. the Special Working Group on High Pressure Vessels was established for the purpose of creating a Standard dealing with the construction of “high pressure vessels” which are in general above 10. Inc. Some of the innovative concepts which began with ASME Section VIII. to develop the ASME Section VIII. ASME develops codes and standards that enhance public safety. It is recognized that many high pressure designs are unique and quite innovative and therefore. this example problem manual cannot cover all design aspects within the scope of Section VIII. . viii c Copyright 2013 by the American Society of Mechanical Engineers. Division 3 Alternative Rules for Construction of High Pressure Vessels” was first published in 1997.000 members promoting the art. Division 3.
No reproduction may be made of this material without written consent of ASME.PTB-5-2013 PART 1 General Requirements 1 Copyright c 2013 by the American Society of Mechanical Engineers. .
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