Formulation and implementation of hybrid-Trefftz stress elements for cohesive fracture

被引：0
作者：
Teixeira de Freitas, J. A. [1 ]
机构：
[1] Univ Tecn Lisbon, Inst Super Tecn, Dept Civil Engn & Architecture, P-1049001 Lisbon, Portugal
来源：
PROCEEDINGS OF LSAME.08: LEUVEN SYMPOSIUM ON APPLIED MECHANICS IN ENGINEERING, PTS 1 AND 2 | 2008年
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D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The hybrid-Trefftz stress finite element model is formulated to implement the fracture analysis of quasi-brittle materials using a cohesive model. The response is assumed to be geometrically linear and the bulk material to respond elastically. A discontinuous cohesive fracture model is used for tension dominant processes. Besides the derivation of the hybrid-Trefftz stress model, the approximation basis is defined and the procedure to detect and to implement the onset and propagation of damage and fracture through the domain of the element is outlined.
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页码：105 / 120
页数：16
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