%0 Journal Article
%T 复合材料层合板压缩载荷下渐进损伤分析与试验验证<br>Analysis and Experimental Validation of the Progressive Damage for Laminate Composite under Compression
%A 朱建辉
%A 曾建江
%A 陈滨琦
%A 童明波
%J 机械科学与技术
%D 2015
%X 基于渐进损伤分析方法，建立了复合材料层合板的三维有限元模型。该模型包含应力分析求解、单元失效判定和损伤单元材料性能退化。采用了修正的带剪切非线性的Hashin准则作为单元的失效判据，使用Camanho模型对失效单元进行材料性能退化。通过编写用户自定义材料子程序（UMAT），实现了失效准则与材料退化准则在Abaqus中的应用。并对有限元模型进行了试验验证。计算值与试验值之间误差为8.7%。有限元计算得出的失效位置与失效模式和实验吻合很好，结果表明本文模型能合理进行层合板的强度预测和失效分析。<br>Based on the progressive damage analysis, a three dimensional (3D) finite element model for composite laminate is built. The model is consisted of the stress analysis, judgement of element failure and property degradation of damaged element. The modified non-linear 3D Hashin criterion is used to judge the element damage, and Camanho property degradation model is to degrades damaged elements. By coding the user material subroutine (UMAT), the application of failure criterion and property degradation model is written in Abaqus. The finite element model is validated by comparing with the experimental results. The diffrence between the calculated and experimental value is 8.7%. The failure position and failure mode ia in a better agreement with the experimental results, which shows that the model can be used to predict the strength and analyze the damage of laminate composite
%K 复合材料层合板
%K 渐进损伤分析
%K 损伤
%K UMAT
%K 试验&lt
%K br&gt
%K ABAQUS
%K failure
%K laminates
%K progressive damage analysis
%K UMAT
%U http://journals.nwpu.edu.cn/jxkxyjs/CN/abstract/abstract6058.shtml