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纤维增强聚合物圆柱体与刚性平面接触应力场的有限元分析
引用本文:任超,陈建钧,潘红良.纤维增强聚合物圆柱体与刚性平面接触应力场的有限元分析[J].医学教育探索,2012(1):123-126.
作者姓名:任超  陈建钧  潘红良
作者单位:华东理工大学机械与动力工程学院,上海 200237;华东理工大学机械与动力工程学院,上海 200237;华东理工大学机械与动力工程学院,上海 200237
摘    要:对纤维增强聚合物圆柱体与刚性平面线接触问题进行了有限元分析,研究了接触区内纤维的存在以及取向变化对基体和纤维上应力的影响。结果表明:纤维的存在使得纤维下方基体的应力降低,纤维上方基体应力增大;纤维上的最大应力以及纤维端面上的接触应力均与纤维轴向角成线性关系,且受切向角影响较小;纤维的弹性能随着纤维轴向角和切向角均线性变化,且受轴向角影响更大。

关 键 词:纤维复合材料    接触应力    有限元分析    纤维取向

FEM Analysis of Contact Stress Field of Fiber Reinforced Polymer Cylinder with Rigid Plane
REN Chao,CHEN Jian-jun and PAN Hong-liang.FEM Analysis of Contact Stress Field of Fiber Reinforced Polymer Cylinder with Rigid Plane[J].Researches in Medical Education,2012(1):123-126.
Authors:REN Chao  CHEN Jian-jun and PAN Hong-liang
Institution:School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China;School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China;School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
Abstract:Contact problem of fiber reinforced polymer cylinder with rigid plane was analyzed by finite element method(FEM). Stress distribution in fiber and matrix were studied considering different fiber orientation angles, when fiber lied on the contact surface. The result reveals that the stress on the matrix beneath the fiber is released and intensified above the fiber. Meanwhile, the maximum stress on fiber as well as the contact stress on fiber surface increases linearly with its axial distribution angle and effected barely by its tangent distribution angle. The elastic energy of fiber is proportional with both its axial distribution angle and its tangent distribution angle, but the former scale coefficient is larger
Keywords:fiber reinforced composite  contact stress  FEM analysis  fiber orientation
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