Experimental and numerical study of the effect of micro-structure on the rate-sensitivity of cellular foam

摘要: ABSTRACTUnderstanding the dynamic behavior of cellular foam is essential for designing anti-collision structures. In this work, rate-sensitivity was analyzed on experiments split Hopkinson pressure bar and finite element methods (FEM). A typical circular ring structure introduced in FEM analyses to estimate effects post-buckling cell walls properties stress enhancing as strain rate increases. The quadrilateral/circular honeycomb used contribution micro-structure matrix effects. These results show that a an important factor.