Author biography |
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ix | |
Preface |
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xiii | |
Acknowledgments |
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xvii | |
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xix | |
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1 Introduction to welding mechanics |
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1 | (36) |
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1.1 Introduction to welding process, distortion, and residual stress |
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1 | (7) |
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1.2 Production process of residual stress and its source (inherent strain) |
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8 | (20) |
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1.3 Reproduction of residual stress by inherent strain and inverse analysis for inherent strain |
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28 | (2) |
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1.4 Numerical examples of residual stress, inherent strain, and inherent deformation |
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30 | (4) |
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34 | (3) |
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2 Introduction to measurement and prediction of residual stresses by the inherent strain method |
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37 | (20) |
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2.1 Inherent strains and resulting stresses |
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38 | (4) |
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2.2 Measured strains in experiments and inherent strains |
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42 | (1) |
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2.3 Effective and noneffective inherent strains |
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43 | (2) |
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2.4 Determination of effective inherent strains from measured residual stresses |
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45 | (2) |
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2.5 Most probable value of effective inherent strain and accuracy of the measurement of residual stress |
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47 | (2) |
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2.6 Derivation of elastic response matrix |
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49 | (1) |
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2.7 Measuring methods and procedures of residual stresses in two- and three-dimensional models |
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50 | (5) |
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2.8 Prediction of welding residual stresses |
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55 | (1) |
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55 | (2) |
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3 Mechanical simulation of welding |
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57 | (44) |
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3.1 Heat flow and temperature during welding |
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58 | (23) |
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3.2 Basic concepts of mechanical problems in welding |
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81 | (17) |
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98 | (3) |
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4 Computing methods of welding thermal-mechanics |
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101 | (46) |
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4.1 Welding heat source models |
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101 | (7) |
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4.2 Basic thermal conduction and heat transfer equations |
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108 | (6) |
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4.3 Finite element method for welding thermal stress and strain |
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114 | (21) |
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4.4 Introduction of advanced material models |
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135 | (2) |
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4.5 Simulation procedures and checkpoints |
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137 | (6) |
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143 | (4) |
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5 Residual stress in typical welded joints |
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147 | (58) |
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5.1 Basic thermal elastic-plastic-creep behavior in a fixed bar model |
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147 | (6) |
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5.2 Residual stress distribution in single-pass bead-on-plate welds |
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153 | (6) |
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5.3 Residual stress distribution in lap joints |
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159 | (3) |
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5.4 Residual stress distribution in a thick-plate butt-welded joint |
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162 | (7) |
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5.5 Residual stress distribution in pipe butt-welded joints |
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169 | (8) |
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5.6 Residual stress distribution in a multipass P92 steel joint |
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177 | (9) |
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5.7 Residual stress distribution in a thick-plate fillet joint |
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186 | (5) |
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5.8 Features of residual stress distribution near weld end-start location |
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191 | (9) |
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200 | (2) |
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202 | (1) |
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203 | (1) |
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204 | (1) |
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6 Practical analysis methods for welding deformation of structures |
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205 | (36) |
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6.1 Practical numerical methods |
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206 | (19) |
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6.2 Welding deformation prediction |
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225 | (8) |
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6.3 Reduction of welding deformation by straightening |
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233 | (6) |
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239 | (1) |
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240 | (1) |
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7 Prediction of structural welding deformation and its mitigation |
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241 | (38) |
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7.1 Welding deformation of a small construction model |
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241 | (10) |
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7.2 Welding assembly deformation of a train structure model |
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251 | (3) |
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7.3 Prediction of welding deformation of a road bridge girder |
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254 | (6) |
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7.4 Prediction and mitigation of welding deformation of a seagoing ferry superstructure block using the inherent deformation method |
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260 | (10) |
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7.5 Prediction of welding deformation of ship's deckhouse structure and its mitigation |
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270 | (7) |
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277 | (2) |
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8 Analysis of additive manufacturing residual stress and deformation |
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279 | (30) |
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279 | (1) |
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8.2 Toward large-scale simulation of residual stress and distortion in additive manufacturing |
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280 | (7) |
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8.3 Residual stress and distortion in WAAMed thin wall models |
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287 | (3) |
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8.4 Residual stress in WAAMed aluminum alloy specimen |
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290 | (3) |
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8.5 Residual stress in laser-deposited functionally graded material layers |
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293 | (8) |
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8.6 Residual stress and strain due to solid-state cold spray additive manufacturing |
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301 | (5) |
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306 | (3) |
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9 Welding mechanics analysis of countermeasures for product performance problems |
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309 | (48) |
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9.1 Cold cracking at the first pass of a butt-welded joint under mechanical restraint |
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311 | (2) |
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9.2 Cold cracking of slit weld |
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313 | (3) |
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9.3 Analysis of welding residual stress of fillet welds for prevention of fatigue cracks |
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316 | (5) |
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9.4 Multipass-welded corner joints and weld cracking |
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321 | (6) |
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9.5 Analysis of transient and residual stresses of multipass welding of thick plates in relation to cold cracks, under-bead cracks, etc. |
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327 | (4) |
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9.6 Improvement of residual stresses in a circumferential joint of a pipe by heat-sink welding |
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331 | (3) |
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9.7 Analysis of welding deformation and residual stress of automotive parts |
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334 | (3) |
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9.8 Fatigue crack propagation analysis considering welding stress |
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337 | (9) |
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9.9 Analysis of buckling strength considering welding deformation and residual stress |
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346 | (6) |
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9.10 Methods to control deformation due to cutting and welding before structure assembly |
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352 | (1) |
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353 | (4) |
Appendix: Database of typical residual stress distributions in various welded joints |
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357 | (84) |
Index |
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441 | |