摘要
利用有限元软件Abaqus分别对[0°]8和[0°/45°/90°/-45°]S两种铺层结构的碳纤维层压板复合材料建模,模拟得到层压板拉伸时的应力-应变曲线,并与试验结果进行了比较;同时,基于Cohesive界面单元模拟了层压板在拉伸载荷作用下的层间力学性能及失效模式。结果表明:模拟得到的应力-应变曲线与试样结果具有较好的一致性;[0°/45°/90°/-45°]S结构层压板因纤维铺层方向的差异而具有明显的界面破坏现象,而[0°]8结构层压板的分层现象不明显。
The finite element software Abaqus was used to model carbon fiber reinforced laminates with two kinds of laying structure,[0°]8and [0°/45°/90°/-45°]S.The simulated stress-stain curves of the laminates in tensile process were compared with experimental results.Meanwhile,the interfacial mechanical properties and failure mode under tensile load based on cohesive element were simulated.The results indicate that the simulated stress-stain curves were in accordance with the experimental results.And the [0°/45°/90°/-45°]S laminate presented obvious interfacial damage of delamination because of different fiber directions of laying,but it was not clear in the[0°]8laminate.
出处
《机械工程材料》
CAS
CSCD
北大核心
2014年第9期109-112,116,共5页
Materials For Mechanical Engineering
基金
国家自然科学基金资助项目(11272087)
关键词
有限元
层压板
拉伸性能
界面分层
finite element
laminate
tensile property
delamination
