摘要
使用Abaqus/Explicit建立表面带金属层的复合材料层合板和复合材料裸板低速冲击有限元模型,与已有文献对比验证结果的可靠性,研究结果对复合抗弹结构有很好的借鉴和参考价值。采用Johnson⁃Cook本构关系模拟铝合金和钛合金层的力学行为,选用Hashin准则对复合材料层内损伤进行失效判断,用二次应力准则来模拟粘结层Cohesive单元的层间失效。结果表明,相同铺层与冲击能量下,表面带铝合金层合板对内部纤维的保护性能优于表面带钛合金层合板,表面带钛合金层合板的抗冲击性能优于复合材料裸板;[§/0°/90°/0°/90°/0°]s铺层层合板的抗冲击性能优于[§/-45°/90°/0°/45°/-45°]s铺层层合板的抗冲击性能;在子弹刚冲破层合板与子弹完全离开层合板阶段,表面带铝合金层合板对子弹动能吸收率最大。
Abaqus/Explicit is used to establish the low-speed impact finite element models of composite laminates and bare plates with metal layers on the surface, and the reliability of the results is verified by comparison with the existing literatures. The research results have good reference value for composite anti-elastic structures. Johnson-Cook constitutive relation are adopted to simulate the mechanical behavior of aluminum alloy and titanium alloy layer, Hashin criterion of damage is chosen in the composite material layer failure judgment, with secondary stress criterion to simulate the failure of bonding layer Cohesive unit. The results show that the protection performance of aluminum alloy laminate on the surface is better than that of titanium alloy laminate on the surface, and the anti-impact performance of titanium alloy laminate on the surface is better than that of bare laminate on the surface. The impact resistance of [§/0/90/0/90/0]_(s) laminated plywood is better than the impact resistance of [§/-45/90/0/45/-45]_(s) laminated plywood. At the stage when the bullet just broke through the laminate and the bullet completely left the laminate, the maximum kinetic energy absorption of the bullet was obtained by aluminum alloy laminate on the surface.
作者
崔俊杰
郭章新
朱明
李永存
栾云博
杨强
CUI Junjie;GUO Zhangxin;ZHU Ming;LI Yongcun;LUAN Yunbo;YANG Qiang(Institute of Applied Mechanics,College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China;State Key Laboratory for Strength and Vibration of Mechanical Structures,School of Aerospace,Xian Jiaotong University,Xian 710049,China;Shanxi Key Laboratory of Material Strength&Structural Impact,Taiyuan University of Technology,Taiyuan 030024,China;National Demonstration Center for Experimental Mechanics Education(Taiyuan University of Technology),Taiyuan 030024,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2021年第4期4150-4158,共9页
Materials Reports
基金
国家自然科学基金(11602160,11402160,21501129)
山西省高等学校科技创新项目(2017117)
西安交通大学机械结构强度与振动国家重点实验室开放课题(SV2019⁃KF⁃01)
山西省“1331工程”重点创新团队项目。
