Mixed mode cohesive law

被引：89
作者：
Hogberg, J. L. [1 ]
机构：
[1] Univ Skovde, SE-54128 Skovde, Sweden
来源：
INTERNATIONAL JOURNAL OF FRACTURE | 2006年 / 141卷 / 3-4期
关键词：
cohesive law; fracture energy; traction-separation relation; mixed mode;
D O I：
10.1007/s10704-006-9014-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A traction-separation relation to model the fracture process is presented. The cohesive law captures the linear elastic and softening behaviour prior to fracture. It also allows for different fracture parameters, such as fracture energy, strength and critical separation in different mode mixities. Thus, the fracture process in mode I (peel), in mode II (shear) or in mixed mode (a combination of peel and shear) can be modelled without the limitation of a common fracture energy in peel and shear. Examples are given in form of FE-implementations of the normalised cohesive law, namely for the Unsymmetrical Double Cantilever Beam (UDCB) specimen and the Mixed-mode double Cantilever Beam (MCB) specimen. Both specimens are adhesively bonded and loaded in mixed-mode.
引用
收藏
页码：549 / 559
页数：11
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