不同载荷作用下泡沫塑料的变形和失效机理分析

Analyses of the Deformation and Failure Mechanism for PUR Foam Plastics under Different Loadings

本文对经历静、动态加载的硬质聚氨酯（ＰＵＲ）泡沫塑料试件进行了扫描电镜（ＳＥＭ）分析，由照片资料得到了较高密度泡沫塑料的变形和失效的结果。这些结果可以作为建立ＰＵＲ泡沫塑料力学模型的基础。

The SEM analyses of rigid PUR foam plastics specimens which were compress in static or dynamic loadings were made and some deformation as well as failure mechanisms were obtained from the photo data. These results can be used as the basis of setting up mechanical model of PUR foam plastics.