多孔板等效弹性常数的均匀化预测及实验研究

Homogenization Predication of Equivalent Elastic Modulus for Perforated Plates and Experimental Research

基于均匀化方法,对多孔板的宏观等效弹性常数进行预测,得到了面内的弹性模量、泊松比和剪切模量。然后通过拉伸实验的方法,对多孔板进行拉伸性能测试,得到了应力应变曲线,并将实验得到的弹性模量与均匀化方法计算得到的弹性模量进行比较。结果表明,均匀化方法计算得到的等效弹性模量与实验得到的结果相吻合,验证了均匀化方法预测多孔板弹性常数的可行性。

The equivalent elastic modulus of perforated plates can be predicted based on homogenization theory, and the in-plane elastic modulus, Poisson＇s ratio and shear modulus can be achieved. Then the tensile property of perfo- rated plates can be tested with tensile experiment method, and the stress-strain curves were got. The elastic modu- lus obtained by experiment method is compared with that calculated by homogenization method. The results show that the elastic modulus calculated by homogenization theory is consistent with that obtained by experiment, and it is verified to be feasible to predict elastic modulus of perforated plates with homogenization method.