Mathematical Problems in Engineering Joint Structure Stiffness Analysis of an Automotive Body in White with the Finite Element Method

<table class="table-group" id="tab7"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">B pillar lower joint</td><td class="align_center">Front and back bending stiffness (N·mm/rad)</td><td class="align_center">Internal and external bending stiffness (N·mm/rad)</td><td class="align_center">Torsional rigidity (N·mm/rad)</td></tr><tr><td class="align_left" colspan="4"><hr/></td></tr><tr><td class="align_left">Unrigid joint</td><td class="align_center">2.206<i>E</i> + 07</td><td class="align_center">1.258<i>E</i> + 08</td><td class="align_center">1.855<i>E</i> + 07</td></tr><tr><td class="align_left">Rigid joint</td><td class="align_center">4.850<i>E</i> + 07</td><td class="align_center">1.689<i>E</i> + 08</td><td class="align_center">2.825<i>E</i> + 07</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Ratio of stiffness between unrigid and rigid joints of sub-branch 3 of pillar B.</div>

Mathematical Problems in Engineering

tab7

Table 7

Table 7: Mathematical Problems in Engineering Joint Structure Stiffness Analysis of an Automotive Body in White with the Finite Element Method 