Continuum damage mechanics based modeling progressive failure of woven-fabric composite laminate under low velocity impact

作     者：Zhi-gang HU Yan ZHANG 

作者机构：State Key Laboratory of Mechanical System and VibrationShanghai Jiao Tong UniversityShanghai 200240China Arup ShanghaiShanghai 200031China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2010年第11卷第3期

页      面：151-164页

核心收录：

学科分类：081401[工学-岩土工程] 08[工学] 0814[工学-土木工程] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

主　　题：Continuum damage mechanics (CDM) Woven composite laminate Low velocity impact Interface element Cohesive zone 

摘      要：A continuum damage mechanics (CDM) meso-model was derived for both intraply and interply progressive failure behaviors of a 2D woven-fabric composite laminate under a transversely low velocity *** in-plane anisotropic damage constitutive model of a 2D woven composite ply was derived based on CDM within a thermodynamic framework,an elastic constitutive model with damage for the fibre directions and an elastic-plastic constitutive model with damage for the shear *** progressive failure behavior of a 2D woven composite ply is determined by the damage internal variables in different directions with appropriate damage evolution *** interface between two adjacent 2D woven composite plies with different ply orientations was modeled by a traction-separation law based interface *** isotropic damage constitutive law with CDM properties was used for the interface element,and a damage surface which combines stress and fracture mechanics failure criteria was employed to derive the damage initiation and evolution for the mixed-mode delamination of the interface *** analysis and experiments were both carried out on a 2D woven glass fibre/epoxy *** simulation results are in agreement with the experimental counterparts,verifying the progressive failure model of a woven composite *** proposed model will enhance the understanding of dynamic deformation and progressive failure behavior of composite laminate structures in the low velocity impact process.