变刚度复合材料层合板的力学性能  

Mechanical properties of variable⁃stiffness carbon fiber composite laminates

作　　者：叶辉[1] 李清原 闫康康 YE Hui;LI Qing-yuan;YAN Kang-kang(State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130022,China;Technology Center,Shanxi Automobile Holding Group Co.Ltd.,Xi′an 710200,China)

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022 [2]陕西汽车控股集团有限公司技术中心,西安710200

出　　处：《吉林大学学报（工学版）》2020年第3期920-928,共9页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家重点研发计划项目(2016YFB0101601).

摘　　要：基于Altair HyperWorks软件二次开发平台,开发了一种层合板变刚度铺放有限元建模工具,并利用该工具对纤维曲线铺放形式的变刚度层合板进行了有限元建模。在平面静力载荷作用工况下,对比直线纤维层合板与变刚度层合板的不同应力分布,得到了应力分布与纤维角度、纤维铺放密度之间的关系;另外,在压缩载荷作用工况下,对比研究了直线纤维层合板与变刚度层合板的临界失效载荷,研究发现变刚度层合板的失效载荷提高了12.68%。纤维的变角度铺放提高了构件的可设计性,增强了其抗失效性能。Based on Altair HyperWorks platform,a finite element auto-modeling tool was developed for variable-stiffness laminates in curve placement.Comparing the different stress distributions of variable stiffness laminates and linear fiber laminates under plane static load,the relationship between stress distribution and fiber angle or fiber placement density was obtained.In addition,the critical failure loads of variable stiffness laminates and linear fiber laminates under compressive load were compared and studied.It was found that the failure load of variable stiffness laminates is 12.68%higher than that of the linear fiber laminates.The variable angle placement of the fibers improves the design-ability of the components and enhances its anti-failure performance.

关 键 词：材料力学 变刚度层合板 曲线铺设 有限元建模 力学性能 

分 类 号：O341[理学—固体力学] U465.6[理学—力学]