摘要
结合Hashin失效准则并利用cohesive界面单元模拟分层,建立层合壳有限元模型,对复合材料薄壁圆柱壳结构在准静态轴压作用下的吸能性能进行研究。结果表明:本文建立的渐进损伤模型,能够较好的预测复合材料薄壁圆柱壳在准静态轴压作用下的失效模式,载荷-位移曲线和试验吻合度较好。
Using Hashin failure criterion and nonlinear stiffness degradation method,and introducing the failure of cohesive interface element,the progressive damage model is compiled using the subroutine VUMAT of ABQUS finite element analysis software to study the energy absorption performance of composite thin-walled cylindrical shells under axial compression.Compared with the test,the results show that the progressive damage model established in this paper can better predict the failure mode of composite thin-walled cylindrical shells under axial compression,and the calculated load displacement curve is in good agreement with the test.
作者
李玺
LI Xi(Guangxi Technological College of Machinery and Electricity,Nanning 530007,China)
出处
《价值工程》
2022年第31期74-76,共3页
Value Engineering
基金
2022年度广西高校中青年教师科研基础能力提升项目,项目名称《复合材料薄壁结构吸能性能研究》(项目编号2022KY1070)。
关键词
吸能性能
失效准则
复合材料
轴向压溃
energy absorption
failure criteria
fiber reinforced composite
crush on axis load
