复合材料压缩试验方法有限元分析

针对复合材料压缩试验方法三种不同的加载方式，即剪切加载、端面压缩加载及混合加载方式进行了有限元分析，结果表明，对于上述三种加载方式，加强片的根部均存在应力集中，剪切加载方式最严重，端面加或方法应力集中最小，而混合方式加载的应力集中则介于剪切与端面加载之间。

FEM ANALYSIS ON THE COMPRESSION TEST METHODS OF COMPOSITE MATERIALS

In this paper, the two-dimensional finite element method was used to investigate compression test methods of composite materials based on three different loading methods.i.e.shear loading,end loading and the combined loading.It was found that stress concentration could be found at the root of tabs for all different methods,and the results showed that the shear loading method has the highest values of stress concentration and the end loading the smallest.The combined loading method has a stress concentration between above-mentioned two methods.