抄録
For ultra light MAV (micro air vehicle), low-density expanded polypropylene (EPP) has been noticed with keen interest. In this study, mechanical properties and optimal structure of Low-density EPP are investigate by bending and torsion tests. Bending and torsional rigidity are evaluated on the rib, truss and honeycomb structures. The deformation of the structures are analyzed using a finite element method and the maximum displacements are compared with experimental data. The results indicate that the truss structure dose exhibit higher rigidity and the structures reduce the weight of 20% , comparing with the bulk specimen.
