摘要
复合材料的失效行为与复合材料内部应力状态有关。含孔复合材料板由于孔边应力集中,失效经常发生于孔边,因此有必要研究含孔复合材料的拉伸性能。基于ABAQUS商用有限元分析软件建立了含孔碳纤维复合材料层合板有限元模型,数值模拟了含孔复合材料层合板的拉伸力学性能,分析了不同铺层角对孔边应力和应变分布的影响。研究结果表明,正交0°/90°铺层能有效缓解孔边应力集中,提高含孔复合材料的力学性能。
The failure behavior of composite laminate is correlation with the inner stress state.The failure is usually occurred near the hole for open-hole tension laminate due to the stress concentration at the hole.Therefore,it is necessary to investigate the tensile behavior of composite laminate containing a hole with different ply angles.The finite element model of carbon fiber reinforced composite laminate was built up using ABAQUS commercial software,and the tensile behavior of composite laminate containing a hole with different ply angles was simulated.The effect of ply angles on the stress and stain distribution of the laminate was analyzed.The simulation results show that the 0°/90°ply can relief the stress concentration near the hole and improve the mechanical properties of composite laminate.
作者
张谦
ZHANG Qian(Casting Center,AECC Beijing Institute of Aeronautical Materials,Beijing 100095)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2019年第A01期145-148,共4页
Materials Reports
关键词
铺层角
复合材料层合板
开孔拉伸
失效行为
应力集中
ply angle
composite laminate
open-hole tension
failure behavior
stress concentration
