基于ANSYS环境的平面编织层合板拉伸破坏数值仿真

以ANSYS为平台编制了具有可移植性的APDL程序, 建立了损伤累积模型, 对平面编织层合板的损伤破坏行为进行了数值仿真。该模型对适合于单向铺层的Hanshin判据和Reddy刚度衰减方法进行了相应的修正。为验证模型的有效性, 对G803/5224平面编织光滑板、 孔板进行了相应的试验研究。结果表明, 该模型仿真结果与试验结果吻合, 并且比较简单直观, 为平面编织层合板的损伤扩展与破坏的研究提供了便于工程应用的数字化手段。 

Numerical simulation for plain woven composite laminate based on ANSYS software

Based on the software of ANSYS, an APDL code was programmed in which a progressive damage model was established to simulate the failure and the behavior of in-plane woven composite laminates numerically. In the model Hanshin criteria and Reddy stiffness attenuation methods which fit for uni-directional lamina were modified for in-plane fabrics. The experimental researches were carried out on G803/5224 laminates and laminates with a hole to verify this model. The simulating results with this model are coordinate with the test results very well. This method is relatively simple and intuitional when it is used to estimate the damage propagation and residual tensile strength. It would provide a numerical method for the analysis of the damage propagation and tensile failure of woven composite laminates, which is suitable for engineering application.