Admin مدير المنتدى
عدد المساهمات : 19002 التقييم : 35506 تاريخ التسجيل : 01/07/2009 الدولة : مصر العمل : مدير منتدى هندسة الإنتاج والتصميم الميكانيكى
| موضوع: كتاب Structural Shear Joints Analyses, Properties and Design for Repeat Loading الأربعاء 14 يونيو 2023, 7:18 am | |
|
أخواني في الله أحضرت لكم كتاب Structural Shear Joints Analyses, Properties and Design for Repeat Loading George T. Hahn Mechanical Engineering,Vanderbilt University Kaushik A. Iyer U.S. Army Research Laboratory Carol A. Rubin Mechanical Engineering,Vanderbilt University
و المحتوى كما يلي :
TABLE OF CONTENTS SECTION 1.MECHANICAL BEHAVIOR OF SHEAR JOINTS AND DESIGN CONSIDERATIONS Chapter 1. BASIC FEATURES 3 1.1. Aspects of Shear Joints 3 1.2. Out-of-Plane Deformation, Microslip and Plasticity 6 1.3. Fasteners and the Fastener Load 8 1.4. The Bearing, Clamping and Adhesive Modes of Load Transfer 8 1.5. Stress Descriptors for Fatigue 11 Chapter 2. SHEAR JOINTS IN THE BEARING MODE 13 2.1. Stress Descriptors for Bearing Mode 13 2.2. Butt Joint 14 2.3. Doubler 19 2.4. Lap Joint 20 2.5. Lap Joints in the Adhesive-Plus-Bearing Mode 27 2.6. Multiple Rows of Fasteners 29 2.7. Biaxial Loading and Effects of the Free Edge 30 2.8. Fastener Stresses 33 Chapter 3. CLAMPING, INTERFERENCE, MICROSLIP AND 3.1. The Clamped, Frictional or Slip-Resistant Mode of Butt and Lap Joints 41 3.2. Fasteners in the Clamping Mode 54 3.3. Hole Expansion, Squeeze and Interference 54 3.4. Contact Pressure, Microslip and Tangential Stress 59 3.5. Self-piercing Rivet 63 Chapter 4. FATIGUE OF SHEAR JOINTS 67 4.1. Stages of the Fatigue Process 67 4.2. Failure Modes and Locations 67 SELF-PIERCING RIVETS 41 vii ix xi i i iiv Structural Shear Joints 4.3. Fatigue Strength of Panels 70 4.4. Fatigue Strength of Fasteners 80 4.5. Fretting Wear and Fatigue 81 Chapter 5. DESIGN CONSIDERATIONS FOR REPEATED LOADING 87 5.1. Mechanical Performance 87 5.2. Considerations for Joint Durability 87 5.3. Joint Type and Mode Selection 90 5.4. NDI and Fretting 91 5.5. Fail Safe Design 92 5.6. Generalizing Finite Element Results 92 SECTION 2. COMPILATION OF FINITE ELEMENT RESULTS Chapter 6. LOAD TRANSFER IN SINGLE RIVET-ROW LAP JOINTS (CONVENTIONAL AND COUNTERSUNK) 99 6.1. Summary of Load Transfer Models 99 6.2. Load Transfer Calculations for Single Rivet-Row Lap Joints 99 6.3. Summary and Important Points 104 Chapter 7. COMPILATION OF RESULTS FOR OPEN HOLE PANELS AND BUTT JOINTS 107 7.1. Summary of Calculational Models for Open Hole Panels 7.2. Summary of Calculational Models for Butt Joints 107 7.3. Summary of Calculation Results for Open Hole Panels 7.4. Summary of Calculation Results for Butt Joints without Interference 7.5. Effects of Interference in Butt Joints 114 107 107 107 Chapter 8. COMPILATION OF RESULTS FOR LAP JOINTS 125 8.1. Summary of Calculational Models 125 8.2. Summary of Calculation Results 8.3. Summary of Calculation Results Including Interference and Clamping Chapter 9. SINGLE RIVET-ROW LAP JOINTS UNDER BIAXIAL LOADING 151 9.1. Summary of Calculational Models for 2-D and 3-D Lap Joints under 9.2. Summary of Calculation Results for Pinned Connections under Biaxial Loading 151 9.3. Summary of Calculation Results for Single Rivet-Row Lap Joints under 125 129 Biaxial Loading 151 Biaxial Loading 151 Chapter 10. COMPILATION OF RESULTS FOR LAP JOINTS WITH 10.1. Summary of Calculational Models for for Single Rivet-Row Lap Joints with Sealants and Adhesives 157 10.2. Summary of Calculation Results for Pinned Connections with Sealants and Adhesives 157 SEALANTS AND ADHESIVES 157Table of Contents V Chapter 11. COMPILATION OF RESULTS FOR RIVETS 161 11.1. Summary of Calculational Models for Rivets 161 11.2. Summary of Calculational Results for Rivets 161 Chapter 12. DATA TABULATIONS 173 12.1. Summary Calculation Results for Single Rivet-Row Lap Joints 173 12.2. Summary Calculation Results for Double Rivet-Row Lap Joints 173 12.3. Summary Calculation Results for Rivet Installation Residual Stresses 174 12.4. Summary Calculation Results for Single Rivet-Row Joints Under Biaxial Loading 174 12.5. Summary Calculation Results for Single Rivet-Row Joints With Sealant 175 12.6. Summary Calculation Results for Variation of Panel Thickness in Wide Single Rivet-Row Joints 183 12.7. Summary Calculation Results for Joint Excess Compliance and Rivet Tilt 183 SECTION 3. CALCULATIONAL MODELS AND VALIDATION Chapter 13. FINITE ELEMENT MODELS 189 13.1. 2D Models of Butt Joints,Attachment Joints and Open Hole Panels 189 3.2. 3D Models of Single Rivet-Row Lap and Butt Joints (Standard and Countersunk Rivet Heads) 190 13.3. Double Rivet-Row Lap Joints (Standard and Countersunk Rivet Heads) Chapter 14. THIN ADHESIVE LAYER ANALYSIS (TALA) FOR MODELING 14.1. Development of A Thin Adhesive Layer Analysis (TALA) 197 14.2. Conversion of Adhesive Solid Element to Spring Element for 2-D Fem 197 14.3. Conversion of Stress-Strain Relationship to Force-Displacement Relationship for Thin Adhesive Layer 200 14.4. Mechanical Behavior of Thin Sealant Layer 202 14.5. Shear Spring Dependence of Contact Pressure 205 Chapter 15. MATERIAL MODELS FOR THE FINITE ELEMENT CALCULATIONS 15.1. Materials Used in the Finite Element Calculations 207 195 SEALANTS AND ADHESIVES INSTALLED IN JOINTS 197 207 Chapter 16. VALIDATION OF FINITE ELEMENT CALCULATIONSAND TALA 16.1. Finite Element Model Validation 209 16.2. Validation of The Thin Adhesive Layer Analysis (TALA) 210 209 Chapter 17. STRESS CONCENTRATION FACTORS IN MULTIPLE ROW JOINTS 17.1. Analyses of Multiple Row Joints 217 17.2. Estimating Fastener Loads in Multiple Row Joints 217 217vi Structural Shear Joints 17.3. Estimating Fastener Loads with 3D Deformations 218 17.4. A Superposition Method for Estimating SCFs 221 17.5. Validation 223 Chapter 18. ANALYSIS OF FASTENER TENSION AND CLAMPING STRAIN 225 18.1. Nomenclature 225 18.2. Clamping Model 226 18.3. Fastener Tension and Clamping Strain Predictions 227 18.4. Summary of Procedure 229 APPENDIX A. SUMMARY OF CALCULATIONAL MODELS 231 APPENDIX B. STRESS CONCENTRATION FATOR-FATIGUE STRENGTH (SCF-FS) ANALYSIS 241 APPENDIX C. ANALYSIS OF FRETTING WEAR AND FATIGUE 249 APPENDIX D. SYMBOLS, ABREVIATIONS AND UNITS 253 REFERENCES 257 INDEX INDEX A Abbreviations xi, 225,226,231,253-256 Adhesive-plus-bearing mode calculational models 239 compliance 28 definition 10 design considerations 91 fastener tilt 28 polymer sealant 27 stress concentration factor, SCF 27,28 Alpha-numeric code ix,231 Angular conventions 14 Assembly variability 88 Attachment joint definition 3 multiple row 221 B Back panel Bearing mode 13-39 definition 4 definition 13 design considerations 90 peak local stresses 13 Bearing-plus-adhesive mode (see adhesive-plus-bearing mode) Biaxial loading 5,30,31,32,151,190,194, 238 lap joint 151,152 butt joint 151,153,154 Biaxial stress ratio 32 Bolt tension (see clamping force) Built-up joint 6 Butt joints (double shear) calculational models 223 clamped butt joint 4147 contact pressure 110-112 definition 3 fretting factors 118-123 gross section SCF 15 hole expansion (interference) 54,114 net section SCF 15 multiple rows 29,221 nondestructive evaluation, NDE 30 pitch 24,26 slip 117 stress concentration factor, SCF 14,15, 113-115 Bypass load 222 C Calculation models 231-240 Calibrating steel bolts 42 Clamping mode (frictional mode, slip resistant or slip critical mode calculational models 237 clearance 54 compliance 53 definition 9 design considerations 91 double-row butt joint 54 fastener load 0 fastener stresses 54 force (bolt tension) 13,41, 225-230 hysteresis 53 micro-slip 47,50 micro-tilt 47 misfit 229 multiple row joint 222 263264 Structural Shear Joints Clamping mode (continued) nominal clamping 41 residual stresses 42 shank strain 41 spring model 226 stress carrying capacity 95 stress field 49,50 stress concentration factor, SCF 47-54 transition to bearing mode 46 Clearance 54 Compliance 13,23,28,53,59,94,173,183 Contact pressure 13,50,56,59,63,110 Countersunk fastener 9,21,23,26,28, definition 173 29,33-35,38,85,99-105,128-131, 138-149,155,162,163,168-171, 175-177,179,181,182,185,191,220 Crack growth 67 Crack initiation 67 Cyclic life 90 Cyclic loading 53 Cyclic stress-strain behavior 7 life 70 D Damage tolerance 87 Design considerations 6.87-95 Diameter/thickness-ratio 24 Double rivet-row joint 24,54,135,173, Doubler 195,236 definition 3 finger 6 multiple row 217,221 stress concentration factor, SCF 19, 221 E Excess compliance (see compliance) Experimental validation 209 F Fail safe design 92 Fastener (also see rivet) cyclic stress capacity 91 flexibility 218 head-shank corner 69 influence on panel SCF load 8,9,29,222 load in multiple-row joints 217 pitch 8,13,92, stresses 33,38.39,54,161-171 tension, average 229 tilt 28 tilt angle 3 type xi,231 cracks, detection of 91 durability 87 failure modes 67-70 fretting 82-86 Gerber diagram 245 life 11,28,70,87 multiple site damage, MSD 70 SCF-FS Analysis, 71-80,241-247 S-N curves of aluminum alloys 246 S-N curves of open hole panels 243, S-N curves of shear joints 72,73,75,77, strength of panels 70-80 strength of fasteners 80,81 Fatigue 244 80,247 Filled open hole 14 Finite element models adhesive-plus-fasteners (TALA) 2D models of butt and attachment 3D models of butt and lap joints hole expansion (interference) and validation 209-216,223 197-205 joints and open hole panels 189 190-193,195 clamping 193 Fracture mechanics analyses 67 Free edge 30,31 Fretting 59,92 factors 12,250 wear 12,81 double strap, bolted butt joint 85 rivet lap joint 85 single rivet row lap joint 85 factor (parameter) 118,119,120 stress carrying capacity 45 Fretting fatigue 12,82,249 Friction 6,13 Frictional mode (see clamping mode) Front panel 4Index 265 G Gerber diagram 71,245 Gross section location definition 50 failure 69 H Hole expansion (interference) 6,5459, 129,193,237 contact pressure 56 influence on bearing mode stresses 58 residual stresses 56,58 mandrel 55 modified net section failure 69 upset and squeeze 55 Hysteresis 53 I Interference (see hole expansion) J Joint attachment 3 built up 6 butt (double shear) 3,14,15,24,26, compliance 13,28 configuration xi, 88,231 double row butt 54 double shear (see butt joint) failure 16 lap 3,20,33,37,234,235 measurement of lap 215 multiple row 3,8,29,32,217,232 narrow 5 selection 90 single-row 31 single shear (see lap joint) variables xi, 231 wide 5 29,30,41-47, 54,110-112,233 K k/K-ratio 218 L Lagging row of fastener holes definition 4 loading 5,8,24 fastener stresses 38 Lap joint (single shear) calculational models 234-236 clamped 41-47 compliance 23 definition 3 double fastener row joint 24,177,236 fastener stresses 33-38 fretting 81-88 multiple row joint 29,221 nondestructive evaluation, NDE 20, pitch 24-26 single fastener-row joint 17,18,20-23, stress concentration factor, SCF 17,18, 30 173,178-186 20-26,29,221 Leading row of fastener holes definition 4 loading 5,8,24,223 fastener stresses 33 Load transfer analysis 99-105 load path 105 Load transfer mode bearing 8,13,90,99-105 clamping 9,91 clamping-plus-bearing 10,91 adhesive-plus-bearing 10,27,91 Local deformation 47 M Mandrel (see hole expansion) Material models and properties 207 Material variability 90 Micro-slip 6,7,47,50,59 Micro-tilt 47 Mode of load transfer adhesive-plus-bearing 10,91 bearing 8,13,90,221 bearing-plus-adhesive 27 clamped 222 clamping-plus-bearing 10,50,51 definition 9 failure 67 fasteners in clamping 54 frictional 9,lO selection 90 slip critical 9 slip resistant 9,20266 Structural Shear Joints Monotonic strength 87 Multiple row joints analysis 217-221 bearing mode 221 clamping mode 222 definition 3 fastener load 8,29,217,221 nondestructive evaluation, NDE 30 biaxial loading 32 stress concentration factors, SCF 29, 221-224 Multiple Site Damage (MSD) 70 N Net section location butt and lap joints 50 definition 50 failure 67 peak stress 47 Nomenclature 225,253 Nominal stress 93 Non-Destructive Evaluations (NDE) 20, Normalized tangential stress 113 Nucleation of cracks 70 Number of fastener rows 93, 217-224 82,85,87,91 0 One-dimensional spring models 30 Open hole panel empty 6,107,108,232 filled 6, 14,.109,232 Out-of-plane deformation 3,6 P Panel back 4 configuration 88 definition 3 fastener 88 front 4 material 39,93,94 open hole 6,14,107-109,232 thickness 24,92,183 Peak local stresses 13 Pinned connections with sealants and adhesives 157 Pitch 8 Pitchldiameter ratio 13,24,26, 92 Plasticity 7 Poisson’s contraction 29 Polymer sealants 27 Pressure dependent shear modulus 27 R R-ratio 90 Rivet (also see fastener) countersunk fastener 9,21,23,26,28, 29,33-35,38,85,99-105,128-131, 138-149,155,162,163,168-171, 175-177,179,181,182,185,191,220 head 23 installation residual stresses 174 self-piercing 63,65 shape 38 squeeze 54,55 stresses 161-171 upset 55 vs. bolts 95 tilt 13,23,173,183 S S-N curve aluminum alloys 246 open hole panels, aluminum 243-244 shear joints, riveted aluminum lap 72, shear joints, bolted steel butt 75,76 adhesive-plus-bearing mode 74 bearing mode 71 clamping mode 74 73,77,79,80, 247 SCF-FS analysis of shear joint SCF-FS analysis of open hole panel Sealant Sealants and adhesives 239 Self-piercing rivet lap joint 243-244 modeling of 197 modeling of 194 fatigue 80 stress concentration factor, SCF 63 S-Ncurve 80 Shank failures 70 Shank strain 41Index 267 Shear spring dependence of contact Shear stress-strain relationships for a thin Self-piercing rivet, 63-65 Installation 65 Single rivet-row 20 lap joints under biaxial loading 31,174 lap joints 125,129,173,176-179,182, lap joints with sealants 175 lap joints with sealants and adhesives pressure 205 sealant coating layer 204 184-186 157 Slip 13 Slip resistant mode (see clamping mode) Slip critical mode (see clamping mode) Solid adhesive spring element 197 Spring models of shear joint, 30,218 Standard head 33 Steel joints 38,75,76,93 Strength Reduction Factor- Fatigue Strength (SRF-FS) analysiswith self-piercing rivets 79 Stress Concentration Factor (SCF) 11, 14,15-20,25,26,173,241 gross section 15 influence of adhesive stiffness 27 net section 15,30,51 superposition method for estimating 221 Stress ratio 245 Stiffnessratio 30 Symbols 225,226,231,253-256 T Thin Adhesive Layer Analysis (TALA) 197 validation of 210 Thread root failure 69 3D finite element models 190-196 Tilt 94,174 2D models attachment joints 189 butt joints 189 open hole panels 189 U Units 253-256 V Validation of finite element models
كلمة سر فك الضغط : books-world.net The Unzip Password : books-world.net أتمنى أن تستفيدوا من محتوى الموضوع وأن ينال إعجابكم رابط من موقع عالم الكتب لتنزيل كتاب Structural Shear Joints Analyses, Properties and Design for Repeat Loading رابط مباشر لتنزيل كتاب Structural Shear Joints Analyses, Properties and Design for Repeat Loading
|
|