A meshless Cracking Particles Approach for ductile fracture

被引：9
作者：
Kumar, V. [1 ]
Drathi, R. [1 ]
机构：
[1] Indian Inst Technol, Dept Aerosp Engn, Madras 600036, Tamil Nadu, India
来源：
KSCE JOURNAL OF CIVIL ENGINEERING | 2014年 / 18卷 / 01期
关键词：
ductile fracture; civil engineering; modeling and simulation; meshfree method; cracking particles; FINITE-ELEMENT-METHOD; PHANTOM-NODE METHOD; MESHFREE THIN SHELL; DYNAMIC FRACTURE; NUMERICAL-ANALYSIS; SHEAR BANDS; PROPAGATION; INITIATION; GROWTH; APPROXIMATIONS;
D O I：
10.1007/s12205-014-0164-4
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
We present a meshless Crack Particles Approach (CPM) for ductile material failure. Material failure is modeled by enrichment of the meshless shape functions in the CPM where the crack is described as set of plane crack facets passing through the entire domain of influence of the meshless node. The CPM does not require any geometrical description of the crack surface. The Gurson-Tvergaard-Needleman (GTN) model is used to describe the constitutive material in the intact continuum. The onset of unstable material behavior is modeled by the loss-of-material-stability criterion. The approach is applied to two benchmark examples demonstrating the excellent accuracy of the proposed framework.
引用
收藏
页码：238 / 248
页数：11
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