A variational model based on isogeometric interpolation for the analysis of cracked bodies

被引：103
作者：
Cuomo, Massimo [1 ]
Contrafatto, Loredana [1 ]
Greco, Leopoldo [1 ]
机构：
[1] Univ Catania, Dept Civil & Environm Engn, I-95124 Catania, Italy
来源：
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE | 2014年 / 80卷
关键词：
Fracture; Isogeometric analysis; Strong discontinuity; Cohesive mechanics; Crack tracking; PHASE-FIELD MODELS; STRONG DISCONTINUITIES; CONTINUUM MODEL; BRITTLE-FRACTURE; FINITE-ELEMENTS; ELASTIC SHELLS; DAMAGE; GROWTH; PROPAGATION; MICROSTRUCTURE;
D O I：
10.1016/j.ijengsci.2014.02.017
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A variational model for the analysis of crack evolution is presented. The method considers strong discontinuities that evolve according to the principles of cohesive fracture mechanics. A novel isogeometric interpolation scheme is presented that, differently from previous proposals, inserts the fracture modifying the blending properties of the interpolation. A method for tracking the discontinuity is also proposed, based on a local distortion of the parametrization of the geometry obtained determining the position of the control points of the isogeometric interpolation as solution of a suitable minimization problem. (C) 2014 Published by Elsevier Ltd.
引用
收藏
页码：173 / 188
页数：16
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