高压物理学报2017，Vol.31Issue(4)：373-381,9.DOI:10.11858/gywlxb.2017.04.004
拉伸载荷下含孔复合材料层合板的力学性能及失效机理
Mechanical Property and Failure Mechanism of Composite Laminates Containing a Circular Hole under Tension
摘要
Abstract
In order to set up a three dimensional damage model for composite laminates with a circular hole,based on the failure criteria proposed by Linde et al.,we at first implemented the user-defined material subroutine UMAT in the finite element code ABAQUS using the factors of fiber and matrix to characterize the gradual degradation of material.Then we used the damage model to study the mechanical property and failure mechanism of composite laminates with different ply angels,stacking sequences,hole diameters or positions subjected to uniaxial tension.The results show that the damage factors of the fiber and matrix varied differently for plies with different ply angels.In addition,the hole diameter and ply angle have significant effects on the reaction force of the composite laminates,while the influence of the hole position and stacking sequence of plies are much smaller.Our model can be used to predict qualitatively and quantitatively the progressive failure behavior of composite laminates under tension,thus it can serve as a reference for engineering application and design of composite laminates.关键词
复合材料层合板/损伤力学/渐进失效分析/数值模拟/UMATKey words
composite laminates/damage mechanics/progressive failure analysis/numerical simulation/UMAT分类
数理科学引用本文复制引用
朱浩,郭章新,宋鲁彬,王志华,李永存..拉伸载荷下含孔复合材料层合板的力学性能及失效机理[J].高压物理学报,2017,31(4):373-381,9.基金项目
国家自然科学基金(11602160,11402160) （11602160,11402160）
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(SV2017-KF-01) （SV2017-KF-01）
