Buffering Performance of High-Speed Impact Space Penetrator with Foam-Filled Thin-Walled Structure

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr class="thead"><td class="align_left">Material</td><td class="align_center">E (MPa)</td><td class="align_center">μ</td><td class="align_center">ρ (t/mm3)</td><td class="align_center">G (MPa)</td><td class="align_center">β</td></tr><tr><td class="thead-hr" colspan="6"><hr/></td></tr><tr><td class="align_left">Alloy steel</td><td class="align_center">2.1e5</td><td class="align_center">0.28</td><td class="align_center">7.7e − 9</td><td class="align_center">—</td><td class="align_center">—</td></tr><tr><td class="align_left">7075</td><td class="align_center">7.2e4</td><td class="align_center">0.33</td><td class="align_center">2.8e − 9</td><td class="align_center">230</td><td class="align_center">—</td></tr><tr><td class="align_left">Polyurethane</td><td class="align_center">—</td><td class="align_center">0.45</td><td class="align_center">1e − 8</td><td class="align_center">1.5</td><td class="align_center">1.05</td></tr><tr class="table-tr"><td colspan="6"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Shock and Vibration

tab3

Table 3

Table 3: Buffering Performance of High-Speed Impact Space Penetrator with Foam-Filled Thin-Walled Structure 