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.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | ASME B31 COMMITTEE ROSTER <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | CORRESPONDENCE WITH THE B31 COMMITTEE <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 1 General 2 Definitions 3 Document Contents <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Tables Table 1-1 Flexibility and Stress Intensification Factors <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | Figure 1-2 Orientations for Bends Figure 1-3 Branch Dimensions <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure 1-4 Flexibility and Stress Intensification Factors for Bends and Miters Figure 1-5 Flanged End Corrections for Bends and Miters <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Figure 1-6 Flexibility Element Locations Figure 1-7 Fillet Weld Contours <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Figure A-1.1-1 Representative Cantilever Test Arrangements NONMANDATORY APPENDIX A Stress Intensification Factor (SIF) Test Procedure A-1 General <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Table A-2.4-1 Stress Intensification Increase Factor <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | A-3 Variations in Materials and Geometry A-4 Test Report <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | A-5 Nonmandatory Commentary on SIF Test Procedure <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | A-6 References <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Figure B-1-1 Branch Connection Specimen NONMANDATORY APPENDIX B Test Method for Determining Branch Connection Flexibility Factors B-1 General <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Figure B-2-1 Example Flexibility Factor Branch Load Assembly Orientation B-2 Definitions B-3 Nomenclature <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | B-4 Test Procedure <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Figure B-4.4-1 Detailed Beam Model for Through-Branch k-Factor Test Figure B-4.4-2 Beam Model <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Figure B-4.6-1 Load-Displacement Diagram B-5 Number of Test Specimens B-6 Variations and Similarities in Materials and Geometry <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | B-9 References <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | NONMANDATORY APPENDIX C Use of Branch Connection Flexibility Factors in Piping System Analysis C-1 Nomenclature C-2 General <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Figure C-2-1 Rotational Stiffness Location Between Two Nodes Figure C-2-2 Branch Connection In-Plane Direction C-3 References <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | 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) <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Figure C-2-6 Rotational Flexibility Definitions Figure C-2-7 Branch and Run SIF and k-Factor Intersection Orientations <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Figure D-1-1 Standard Sustained Load Setup NONMANDATORY APPENDIX D Sustained Load Test Procedure D-1 General <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | Figure D-1-2 Bend Sustained Load Setup D-2 Definitions <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Figure D-2-1 Load-Displacement Diagram Illustrating Typical Pressure-Sensitive, Not Pressurized, and Not-Pressure-Sensitive Load-Deflection Behavior D-3 Nomenclature <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | D-4 Test Procedure <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Figure D-3-1 Load-Displacement Diagram at ds = 2de Limit <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | D-5 Sustained Load Evaluation Using Test Results D-6 Variations and Similarities in Materials and Geometry <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | D-7 Test Report D-8 Safeguarding Pressurized Twice Elastic Slope Tests <\/td>\n<\/tr>\n | ||||||
| 58<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | D-9 Nonmandatory Commentary on the Sustained Load Test Procedure D-10 References <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" ASME B31J Stress Intensification Factors (i-Factors), Flexibility Factors (k-Factors), and Their Determination for Metallic Piping Components<\/b><\/p>\n |