Dynamic behavior of delaminated plates considering progressive failure process

被引：18

作者：

Chen, HR ^{[1
]}

Hong, M ^{[1
]}

Liu, YD ^{[1
]}

机构：

[1] Dalian Univ Technol, Dept Mech Engn, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China

来源：

COMPOSITE STRUCTURES | 2004年 / 66卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

dynamic response; loaded capability; progressive failure process; reduced stiffness; generalized orthogonal damping model; virtual interface linear spring element; delaminated composite plate;

D O I：

10.1016/j.compstruct.2004.04.068

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The paper is to study on dynamic response behavior of the delaminated composite plates considering progressive failure process. A formula of element stiffness and mass matrices for the composite laminates is deduced by using the first-order shear deformation theory combined with the selecting numerical integration scheme. A damping model is constituted by a generalized orthogonal damping model on basis of Adams' strain energy method. A virtual interface linear spring element is also employing for avoiding the overlap and penetration phenomenon between the upper and lower sublaminates at the delamination region. The failure analysis method for the delaminated plates under dynamic loading is established by a modified Newmark direct integral method in conjunction with Tsai's failure criterion and corresponding stiffness degradation scheme. By some numerical examples, the effects of frequency of dynamic load, delamination length and location, and reduction of structure stiffness during the progressive failure process upon dynamic behavior of the delaminated composite plates are discussed. The method and conclusions would be useful for composite structures designers. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：459 / 466

页数：8

共 12 条

[1] EFFECT OF FIBER ORIENTATION AND LAMINATE GEOMETRY ON DYNAMIC PROPERTIES OF CFRP [J].