基于有限元的双轴载荷状态下自动裂纹扩展分析  

Analysis of Automatic Crack Propagation Under Biaxial Loading Condition Based on Finite Element Method

作　　者：张志贤[1] 王生楠[1] 詹福宇[1] 

机构地区：[1]西北工业大学航空学院,陕西西安710072

出　　处：《航空计算技术》2012年第2期65-68,共4页Aeronautical Computing Technique

基　　金：西北工业大学基础研究基金项目资助(JC201021)

摘　　要：利用Python脚本语言对Abaqus进行了二次开发,预测双轴载荷状态下裂纹扩展轨迹。对双轴载荷下中心带孔板的裂纹扩展进行了模拟,并与FRANC2D得到的计算结果进行比较。结果表明利用二次开发程序计算得到的裂纹扩展轨迹及其断裂参数与FRANC2D得到的结果基本一致,计算结果是可靠的;利用二次开发程序对双轴载荷状态下的进行裂纹扩展分析能够有效减少计算时间,提高计算效率。This paper uses Python scripting language for second-development of Abaqus to predict crack propagation path under biaxial loading condition.The crack propagation of plane with a center hole under biaxial loading condition is analyzed using the second-development program and the results are compared with those obtained by FRANC2D.The conclusion is that the results based on Abaqus second-development are basically agreed with those by FRANC2D,which shows that the results by the secondary-development program are reliable.Using the program to analyze the crack propagation under biaxial loading condition can effectively reduce the computation time,improve calculation efficiency.

关 键 词：裂纹扩展 双轴载荷 Abaqus二次开发 复合型裂纹 有限元 

分 类 号：V215.6[航空宇航科学与技术—航空宇航推进理论与工程]