摘要
基于渐进损伤分析方法,建立十字架层合板[0/90]4 s的逐渐损伤有限元模型。通过开发参数化应用程序,实现在ANSYS中的仿真应用。研究分析3种加载比对层合板双轴拉伸强度与破坏行为的影响,将有限元模型与试验进行对比验证,其强度计算值与试验值之间最大误差为9%。有限元仿真得出的失效位置与试验吻合较好,可见该模型能合理预测层合板双轴强度并可用于失效分析。
Based on the progressive damage analysis,a finite element model of progressive damage of cruciform laminate[0/90]4s is built.The developing parameterized program is used to implement the simulation in ANSYS.The influence of three loading ratios on the biaxial tensile strength and failure characteristics of laminates is studied and analyzed.Comparison and verification are made between finite model and experiments,the maximum difference between the calculated and experimental values of strength is 9%.The failure position is in a better agreement with the experimental results,which show that this model can be used to predict the biaxial strength and analyze the failure of laminates reasonably.
作者
徐传奇
温卫东
郭俊华
XU Chuanqi;WEN Weidong;GUO Junhua(College of Energy&Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;State Key Laboratory of Mechanics and Control of Mechanical Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《机械制造与自动化》
2020年第5期12-15,20,共5页
Machine Building & Automation
基金
工信部“航空发动机热环境与热结构”重点实验项目(XCA1700205)。
关键词
开孔复合材料层合板
渐进损伤分析
十字架模型
双轴拉伸
composite laminate with hole
progressive damage analysis
cruciform model
biaxial tensile
