A “Toolbox” for Forensic Engineers

More documents

Recommendations

Info

Establishing the Load Transfer Path 83 Figure 3.17 Underside view of rear clamp. Figure 3.18 End view of rear clamp, illustrated in Figure 3.17, showing how compression force has deformed semicircular shape. laboratory test (Figure 3.16). This compression force was transferred to the clamps holding the bracket to the chassis, which opened out as illustrated in Figure 3.19 and confirmed in the photographs in Figure 3.13, Figure 3.17 and Figure 3.18. The damage terminated at the chassis frame, which had suffered only slight bruising by the clamps. All the energy of the impact against the wheel was dissipated in fracturing and deforming the other components. If the plaintiff’s expert had considered this possibility at the outset before starting his detailed scientific tests, he would have realized that if the weld at the hub had broken first, there would have been no path by which the load to deform the clamps and bend the axle could have been
84 Forensic Materials Engineering: Case Studies Normal Service Conditions Applied forces cause elastic deformations only. Clamps stay tight. No fracture or perminent deformation. Damaging forces pull axle away from tubular frame, or vice versa. Clamps pulled. Fracture starts at top braze. Damaging forces push axle closer to tubular frame, or vice versa. Clamps pushed. Fracture starts at bottom braze. FIGURE 3.19 Upper portion of the rear clamp, as in Figure 3.18, but drawn to show extensive deformation caused by compressive loads acting through brackets. transmitted. Whenever and however the axle became bent the hub mounting must have been strong enough to react to and transmit the applied force to the chassis. The final capitulation by the plaintiff’s expert was when analysis of the video, frame by frame, revealed the wheel to be in its normal position and alignment on the sidecar chassis during most of the somersault, after the machine had struck the rider’s prostrate body. One of the last frames showed the sidecar wheel violently striking the ground at the end of the somersaulting, after which the wheel appeared to be thrown outward almost horizontally, clearly establishing that this was when the damage was done.
Page 5 and 6:
Library of Congress Cataloging-in-P
Page 8 and 9:
Preface Case studies of product fai
Page 10 and 11:
could not be simpler in shape, they
Page 12 and 13:
Acknowledgments We thank The Open U
Page 14 and 15:
The Authors Peter R. Lewis, Ph.D.,
Page 16:
Laboratories of Imperial College of
Page 19 and 20:
3 Establishing the Load Transfer Pa
Page 21 and 22:
6.5.2 A Problem in Eire 197 6.5.3 M
Page 23 and 24:
9.4.2 Failure in Femoral Stem of To
Page 25 and 26:
13.3.7 Design Development Sequence
Page 27 and 28:
2 Forensic Materials Engineering: C
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
10 Forensic Materials Engineering:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 50 and 51:
Materials in Distress 2.1 Introduct
Page 52 and 53:
Materials in Distress 27 It is usef
Page 54 and 55:
Materials in Distress 29 (A) Unload
Page 56 and 57:
Materials in Distress 31 1. Flowing
Page 58 and 59: Materials in Distress 33 to compens
Page 60 and 61: Materials in Distress 35 Fracture o
Page 62 and 63: Materials in Distress 37 Force A Fr
Page 64 and 65: Materials in Distress 39 Such fract
Page 66 and 67: Materials in Distress 41 somewhat b
Page 68 and 69: Materials in Distress 43 Figure 2.8
Page 74 and 75: Materials in Distress 49 Stress Amp
Page 78 and 79: Materials in Distress 53 solutions.
Page 84: Materials in Distress 59 short time
Page 87 and 88: 62 Forensic Materials Engineering:
Page 107: 82 Forensic Materials Engineering:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
Page 227 and 228:
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 240 and 241:
Failure of Storage Vessels 215 7 Th
Page 242 and 243:
Failure of Storage Vessels 217 cont
Page 244 and 245:
Failure of Storage Vessels 219 Figu
Page 246 and 247:
Page 248 and 249:
Page 250 and 251:
Page 252 and 253:
Failure of Storage Vessels 227 been
Page 254 and 255:
Page 256 and 257:
Failure of Storage Vessels 231 Mean
Page 258 and 259:
Page 260 and 261:
Page 262 and 263:
Page 264 and 265:
Failure of Storage Vessels 239 Stre
Page 266 and 267:
Page 268 and 269:
Page 270 and 271:
Failure of Storage Vessels 245 (Sur
Page 272 and 273:
Failure of Storage Vessels 247 Were
Page 274 and 275:
Failure of Storage Vessels 249 Dam
Page 276 and 277:
Failure of Storage Vessels 251 Bund
Page 278 and 279:
Failure of Storage Vessels 253 Hull
Page 280 and 281:
Accidents in the Workplace 255 8 De
Page 282 and 283:
Accidents in the Workplace 257 ensu
Page 284 and 285:
Accidents in the Workplace 259 4. F
Page 286 and 287:
Accidents in the Workplace 261 is a
Page 288 and 289:
Accidents in the Workplace 263 Figu
Page 290 and 291:
Accidents in the Workplace 265 be b
Page 292 and 293:
Page 294 and 295:
Page 296 and 297:
Page 298 and 299:
Accidents in the Workplace 273 8.4
Page 300 and 301:
Accidents in the Workplace 275 The
Page 302 and 303:
Accidents in the Workplace 277 (Fig
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
Page 310 and 311:
Page 312 and 313:
Failure of Medical Implements 9.1 I
Page 314 and 315:
Failure of Medical Implements 289 b
Page 316 and 317:
Failure of Medical Implements 291 F
Page 318 and 319:
Failure of Medical Implements 293 A
Page 320 and 321:
Page 322 and 323:
Failure of Medical Implements 297 9
Page 324 and 325:
Failure of Medical Implements 299 L
Page 326 and 327:
Failure of Medical Implements 301 T
Page 328 and 329:
Failure of Medical Implements 303 N
Page 330 and 331:
Failure of Medical Implements 305 t
Page 332 and 333:
Page 334 and 335:
Page 336 and 337:
Page 338 and 339:
Failure of Medical Implements 313 S
Page 340 and 341:
Failure of Medical Implements 315 T
Page 342:
Failure of Medical Implements 317 R
Page 345 and 346:
Page 347 and 348:
Page 349 and 350:
Page 351 and 352:
Page 353 and 354:
Page 355 and 356:
Page 357 and 358:
Page 359 and 360:
Page 361 and 362:
Page 363 and 364:
Page 365 and 366:
Page 367 and 368:
Page 369 and 370:
Page 371 and 372:
Page 374 and 375:
Fraudulent Insurance Claims 349 11
Page 376 and 377:
Fraudulent Insurance Claims 351 som
Page 378 and 379:
Fraudulent Insurance Claims 353 Fig
Page 380 and 381:
Fraudulent Insurance Claims 355 go
Page 382 and 383:
Page 384 and 385:
Page 386 and 387:
Page 388:
Fraudulent Insurance Claims 363 roa
Page 391 and 392:
Page 393 and 394:
Page 395 and 396:
Page 397 and 398:
Page 399 and 400:
Page 401 and 402:
Page 404 and 405:
Intellectual Property Cases 13.1 In
Page 406 and 407:
Intellectual Property Cases 381 man
Page 408 and 409:
Intellectual Property Cases 383 1 2
Page 410 and 411:
Intellectual Property Cases 385 Fig
Page 412 and 413:
Intellectual Property Cases 387 21
Page 414 and 415:
Intellectual Property Cases 389 lar
Page 416 and 417:
Intellectual Property Cases 391 Sec
Page 418 and 419:
Intellectual Property Cases 393 Fro
Page 420 and 421:
Intellectual Property Cases 395 a h
Page 422 and 423:
Intellectual Property Cases 397 13.
Page 424 and 425:
Intellectual Property Cases 399 and
Page 426 and 427:
Intellectual Property Cases 401 2 I
Page 428 and 429:
Intellectual Property Cases 403 so
Page 430 and 431:
Intellectual Property Cases 405 Bon
Page 432 and 433:
Intellectual Property Cases 407 doc
Page 434 and 435:
Intellectual Property Cases 409 des
Page 436 and 437:
Intellectual Property Cases 411 Ano
Page 438 and 439:
Intellectual Property Cases 413 not
Page 440 and 441:
Intellectual Property Cases 415 Jun
Page 442 and 443:
Intellectual Property Cases 417 Fig
Page 444 and 445:
Intellectual Property Cases 419 S 1
Page 446 and 447:
Intellectual Property Cases 421 Lev
Page 448 and 449:
Page 450 and 451:
Intellectual Property Cases 425 to
Page 452:
Page 455 and 456:
Page 457 and 458:
Page 459 and 460:
Page 461 and 462:
Page 463:
show all

A “Toolbox” for Forensic Engineers

Create successful ePaper yourself

Delete template?

Save as template?