Buckling Analysis of Laminated Composite Panel with Elliptical Cutout Subject to Axial Compression

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td align="left">Approximate element size (mm <svg height="8.5" id="M16" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 10.1 8.5" width="10.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,8.438)"><path d="M528 54l-36 -38l-198 201l-198 -201l-36 38l197 200l-197 201l36 38l198 -202l198 202l36 -38l-197 -201z" id="xD7"></path></g>
</svg> mm)</td><td align="center">3</td><td align="center">1.5</td><td align="center">0.75</td><td align="center">0.4</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td align="left">Buckling load (kN)<br/></td><td align="center">135</td><td align="center">120</td><td align="center">109</td><td align="center">107</td></tr><tr><td align="left">Difference percent with respect to previous value </td><td align="center">11</td><td align="center">11</td><td align="center">9.1</td><td align="center">1.8</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Mesh convergence study of the cylindrical shells.

Modelling and Simulation in Engineering

tab2

Table 2

Table 2: Buckling Analysis of Laminated Composite Panel with Elliptical Cutout Subject to Axial Compression 