A CONCURRENT MULTISCALE APPROACH FOR FRACTURING OF BRITTLE COMPOSITES BASED ON THE SUPERPOSITION-BASED PHASE FIELD MODEL

被引：5

作者：

Cheng, Panpan ^{[1
,2
]}

Zhu, Hehua ^{[1
]}

Sun, Wei ^{[3
]}

Shen, Yi ^{[1
]}

Fish, Jacob ^{[2
]}

机构：

[1] Tongji Univ, Dept Geotech Engn, Coll Civil Engn, Shanghai 200092, Peoples R China

[2] Columbia Univ, Dept Civil Engn & Engn Mech, New York, NY 10027 USA

[3] Sun Yat Sen Univ, Sch Civil Engn, Guangzhou 510275, Peoples R China

来源：

INTERNATIONAL JOURNAL FOR MULTISCALE COMPUTATIONAL ENGINEERING | 2022年 / 20卷 / 02期

关键词：

concurrent multiscale; phase field; s-version method; composite material; fracture; 2ND-ORDER COMPUTATIONAL HOMOGENIZATION; FINITE-ELEMENT-METHOD; S-VERSION; REPRESENTATIVE VOLUME; MATRIX; SIZE;

D O I：

10.1615/IntJMultCompEng.2022042334

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A concurrent multiscale approach for phase field modeling of fracture is developed to numerically investigate the fracture mechanisms of heterogeneous materials. By this approach the problem domain is divided into macroscopic and mesoscale subdomains where the cracks are expected to propagate. A phase field fracture model in the mesoscale subdomain is employed to describe the crack initiation and propagation process. Taking advantage of the s-version of the finite element method, the two subdomains are discretized independently with finite elements, where the coarse mesh in the macrodomain is employed to resolve the overall behavior, while the fine mesh in the mesoscale domain is aimed at resolving the crack propagation path. Several numerical examples are conducted to study the performance of the method.

引用

页码：1 / 23

页数：23

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