点击次数：

发表刊物：Polymers and Polymer Composites

关键字：Composite laminates；Failure；Low velocity impact；Material degradation；Progressive damage analysis；Str

摘要：Fiber reinforced polymer laminates are susceptible to transverse low velocity impact which can cause significant damages, such as matrix cracks, delamination and fiber breakage. A 3-Dimensional (3-D) finite element model (FEM) is presented for the progressive damage analysis of fiber reinforced laminates subjected to low velocity impact. The constitutive equations of material used in the FEM are based on the continuum damage mechanics (CDM). The modified HASHIN failure criterions are used in the material model to detect the initiation of all the failure modes of laminates. A simplified material stiffness degradation scheme is used to characterize the material degradation due to damages. The failure criterions and material degradation scheme have been incorporated in the software ABAQUS/Explicit through the user defined material subroutine VUMAT. The available experiments of thin carbon fiber reinforced epoxy laminates subjected to low velocity impact were used to validate the developed

论文类型：期刊论文

学科门类：工学

一级学科：航空宇航科学与技术

文献类型：J

卷号：22

期号：1

页面范围：73-78

是否译文：否

发表时间：2014-01-01

合写作者：Shuhua Zhu（朱书华）,Junwei Qi,Jun Xiao