ASME B31J 2017
$98.04
ASME B31J Stress Intensification Factors (i-Factors), Flexibility Factors (k-Factors), and Their Determination for Metallic Piping Components
| Published By | Publication Date | Number of Pages |
| ASME | 2017 | 64 |
This Standard sets forth an engineering procedure deemed appropriate for the determination of the fatigue capacity of a piping component or joint in most services, relative to a standard butt-welded joint. The B31 piping Codes provide stress intensification factors for the most common piping components and joints. This Standard presents an experimental method to determine stress intensification factors.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 6 | FOREWORD |
| 7 | ASME B31 COMMITTEE ROSTER |
| 8 | CORRESPONDENCE WITH THE B31 COMMITTEE |
| 10 | INTRODUCTION |
| 12 | 1 General 2 Definitions 3 Document Contents |
| 13 | Tables Table 1-1 Flexibility and Stress Intensification Factors |
| 24 | Figures Figure 1-1 Orientations for Sketches 2.1 Through 2.6 of Table 1-1 Table 1-2 Moment-Rotation Relationships for Sketches 2.1 Through 2.6 of Table 1-1 Table 1-3 Flanged End Correction Coefficients for Sketches 2.1 through 2.6 of Table 1-1 |
| 25 | Figure 1-2 Orientations for Bends Figure 1-3 Branch Dimensions |
| 26 | Figure 1-4 Flexibility and Stress Intensification Factors for Bends and Miters Figure 1-5 Flanged End Corrections for Bends and Miters |
| 27 | Figure 1-6 Flexibility Element Locations Figure 1-7 Fillet Weld Contours |
| 28 | Figure A-1.1-1 Representative Cantilever Test Arrangements NONMANDATORY APPENDIX A Stress Intensification Factor (SIF) Test Procedure A-1 General |
| 30 | Figure A-1.3-1 Displacement and Force or Moment Recorded During Loading and Unloading of a Test Specimen in Both Positive and Negative Directions, With Linear Displacement A-2 Stress Intensification Factor |
| 31 | Table A-2.4-1 Stress Intensification Increase Factor |
| 32 | A-3 Variations in Materials and Geometry A-4 Test Report |
| 33 | A-5 Nonmandatory Commentary on SIF Test Procedure |
| 35 | A-6 References |
| 36 | Figure B-1-1 Branch Connection Specimen NONMANDATORY APPENDIX B Test Method for Determining Branch Connection Flexibility Factors B-1 General |
| 37 | Figure B-1-2 Multiple k-Factor Tests on Single Assembled Position Table B-1-1 Load-Deflection Pairs for Single Assembled Orientation Shown in Figure B-1-2 |
| 38 | Figure B-2-1 Example Flexibility Factor Branch Load Assembly Orientation B-2 Definitions B-3 Nomenclature |
| 39 | B-4 Test Procedure |
| 40 | Figure B-4.4-1 Detailed Beam Model for Through-Branch k-Factor Test Figure B-4.4-2 Beam Model |
| 42 | Figure B-4.6-1 Load-Displacement Diagram B-5 Number of Test Specimens B-6 Variations and Similarities in Materials and Geometry |
| 43 | Figure B-6-1 Unreinforced Branch Connection With (Left) and Without Ovalization Restraint Plates in Place B-7 Test Report B-8 Ovalization Restraint Plates |
| 44 | B-9 References |
| 45 | NONMANDATORY APPENDIX C Use of Branch Connection Flexibility Factors in Piping System Analysis C-1 Nomenclature C-2 General |
| 46 | Figure C-2-1 Rotational Stiffness Location Between Two Nodes Figure C-2-2 Branch Connection In-Plane Direction C-3 References |
| 47 | Figure C-2-3 Branch Connection Flexibilities Used on Branch Side Only Figure C-2-4 Branch Connection Flexibilities Used on Run Side Only Figure C-2-5 Branch and Run Flexibilities Used Together (in Series) |
| 48 | Figure C-2-6 Rotational Flexibility Definitions Figure C-2-7 Branch and Run SIF and k-Factor Intersection Orientations |
| 49 | Figure D-1-1 Standard Sustained Load Setup NONMANDATORY APPENDIX D Sustained Load Test Procedure D-1 General |
| 50 | Figure D-1-2 Bend Sustained Load Setup D-2 Definitions |
| 51 | Figure D-2-1 Load-Displacement Diagram Illustrating Typical Pressure-Sensitive, Not Pressurized, and Not-Pressure-Sensitive Load-Deflection Behavior D-3 Nomenclature |
| 52 | D-4 Test Procedure |
| 53 | Figure D-3-1 Load-Displacement Diagram at ds = 2de Limit |
| 56 | D-5 Sustained Load Evaluation Using Test Results D-6 Variations and Similarities in Materials and Geometry |
| 57 | D-7 Test Report D-8 Safeguarding Pressurized Twice Elastic Slope Tests |
| 58 | Table D-8.1-1 Distance and Precaution for Pressurized Twice Elastic Slope Test Table D-8.1-2 Inadvertent Air Volumes in Test Specimens |
| 59 | D-9 Nonmandatory Commentary on the Sustained Load Test Procedure D-10 References |
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