基于ABAQUS?R的复合材料跨尺度失效分析软件开发

摘要

复合材料跨尺度失效理论是近些年提出的一类基于物理失效模式的强度理论,它从细观层面判定纤维和基体的失效,在分析复合材料性能匹配和耐久性方面有独特的优势. 提出了一种新的跨尺度失效判定准则,利用Abaqus?R的内嵌Python脚本语言开发了复合材料跨尺度失效分析软件CMFAS,编制了图形用户界面(GUI)进行人机交互,实现了代表体积单元(RVE)参数化建模及后处理、应力放大系数矩阵生成、失效准则临界值求解和损伤演化处理等一系列功能,最终生成Abaqus?R子程序文件USDFLD和VUSDFLD.%Composite multiscale failure theory is a newly proposed category of strength criteria, based on mechanical failure modes. In this theory, fiber and matrix failure are determined in meso level, which has special advantage in analyzing material property matching and durability. A new multiscale failure criteria was proposed, CMFAS (Composite Multiscale Failure Analysis Software) was developed using Python scripting language embedded in Abaqus?R . In CMFAS, GUI (Graphic User Interface) was compiled to realize human-computer interaction, RVE (Representative Volume Element) parametric modeling and post processing, stress amplification factors generation, failure criteria critical value solving and damage evolution were automatically accomplished, finally Abaqus?R subroutine files USDFLD and VUSDFLD were given.