Mixed mode delamination of asymmetric beam-like geometries with cohesive stresses

被引：3
|
作者：
Maimi, P. [1 ]
Gascons, N. [1 ]
Ripoll, L. [1 ]
Llobet, J. [1 ]
机构：
[1] Univ Girona, Mech Engn & Ind Construct Dept, AMADE, Campus Montilivi S-N, Girona 17003, Spain
来源：
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2018年 / 155卷
关键词：
Bimaterial; Delamination; Fracture toughness; Mixed mode fracture; ENERGY-RELEASE RATE; PARTITION THEORIES; INTERFACE CRACK; SPECIMEN; RATES;
D O I：
10.1016/j.ijsolstr.2018.06.032
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The partition of the energy release rate of beam-like geometries is analyzed here. Several methods for partitioning mode I and II energy release rates are presented and critically compared. A Timoshenko beam theory with Dugdale cohesive stress is applied and results show a mixed mode energy release rate dependence on the interface fracture toughness. A geometry is proposed that eliminates this dependence, offering a method to characterize the fracture properties of interfaces between dissimilar materials. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：36 / 46
页数：11
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