Adaptive insertion of cohesive elements for simulation of delamination in laminated composite materials

被引：21

作者：

Shor, Ofir ^{[1
]}

Vaziri, Reza ^{[1
]}

机构：

[1] Univ British Columbia, Dept Civil Engn, Vancouver, BC, Canada

来源：

ENGINEERING FRACTURE MECHANICS | 2015年 / 146卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

LS-DYNA; Adaptive element-splitting; Delamination; Cohesive zones; Adaptive cohesive zone; DCB; ENF; MMB; LOW-VELOCITY IMPACT; PROGRESSIVE DAMAGE; MODEL; ZONE; COMPRESSION; TESTS; PREDICTION; BEHAVIOR; FAILURE; GROWTH;

D O I：

10.1016/j.engfracmech.2015.07.044

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A novel technique for efficient simulation of progressive delamination in large-scale laminated composite structures is presented. During the transient analysis, continuum elements within regions where delamination has the potential to initiate are adaptively split through their thickness into two shell elements sandwiching a cohesive element. By eliminating the a priori requirement to implant cohesive elements at all possible spatial locations, the computational efforts are reduced, thus lending the method suitable for treatment of practical size structures. The methodology is verified here through its application to Mode-I, Mode-II and Mixed-Mode loading conditions for which benchmark solutions exist. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：121 / 138

页数：18

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