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。
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 effeeted 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.
出处
《华东理工大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第1期123-126,共4页
Journal of East China University of Science and Technology
关键词
纤维复合材料
接触应力
有限元分析
纤维取向
fiber reinforced composite
contact stress
FEM analysis
fiber orientation
