Measurement of Mechanical and Thermal Strains by Optical FBG Sensors Embedded in CFRP Rod

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left"></td><td class="align_center"><span style="width: 11.864ptpx;"><svg height="10.2124pt" id="M36" style="vertical-align:-3.42943pt" version="1.1" viewbox="-0.0498162 -6.78297 11.864 10.2124" width="11.864pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M570 304C570 398 525 448 414 448C385 448 343 445 312 434L329 511L321 518C297 504 262 482 244 460L233 411C195 397 159 381 128 358L135 332C160 347 189 360 224 373L111 -147C97 -210 84 -218 17 -231L13 -257L254 -247L259 -218L233 -216C183 -212 177 -202 189 -142L218 -1C238 -10 266 -12 283 -12C351 3 429 48 483 105C543 168 570 242 570 304ZM482 289C482 161 380 33 304 33C278 33 248 51 233 69L303 396C326 400 352 403 369 403C428 403 482 380 482 289Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,7.384,3.132)"><path d="M398 365C398 411 356 451 297 451C250 451 198 430 151 397C65 336 24 230 24 139C24 14 97 -12 148 -12C198 -12 284 7 373 104L355 130C306 84 246 53 198 53C132 53 111 109 111 163V189C209 211 398 261 398 365ZM317 351C317 308 273 262 117 225C134 338 189 383 221 399C230 404 249 407 263 407C295 407 317 389 317 351Z"></path></g></svg></span></td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Smart rod #2</td><td class="align_center">0.200</td></tr><tr><td class="align_left">Smart rod #3</td><td class="align_center">0.201</td></tr><tr><td class="align_left">Smart rod #4</td><td class="align_center">0.211</td></tr><tr><td class="align_left">Average</td><td class="align_center">0.204</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Photoelastic coefficients of smart rod specimens.</div>

Journal of Sensors

tab1

Table 1

Table 1: Measurement of Mechanical and Thermal Strains by Optical FBG Sensors Embedded in CFRP Rod 