Modeling Mixed Mode Fracture of Concrete by Using the Combined Discrete and Finite Elements Method

被引：11
|
作者：
Xu, Wei [1 ,2 ]
Zang, Mengyan [2 ]
Sakamoto, Jiro [1 ]
机构：
[1] Kanazawa Univ, Coll Sci & Engn, Sch Mech Engn, Kanazawa, Ishikawa 9201192, Japan
[2] S China Univ Technol, Sch Mech & Automot Engn, 381 Wushan RD, Guangzhou 510641, Guangdong, Peoples R China
来源：
INTERNATIONAL JOURNAL OF COMPUTATIONAL METHODS | 2016年 / 13卷 / 01期
基金：
中国国家自然科学基金; 日本学术振兴会;
关键词：
Mixed mode fracture; combined method; cohesive model; concrete; discrete element method; COHESIVE CRACK-GROWTH; DYNAMIC FRACTURE; LEVEL SETS; INSTABILITY; SIMULATION; BEHAVIOR; SHEAR; GLASS;
D O I：
10.1142/S0219876216500079
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The mixed mode (I/II) fracture of concrete is investigated by using a four-point combined discrete and finite elements method. The potential fracture zone is simulated by the discrete elements (DEs) and the other zone by the finite elements (FEs). A cohesive fracture model is employed to simulate the brittle fracture only in the DE subregion. Mesh-size independency of the cohesive fracture model subjected to the DE is carefully investigated with a simple case. Subsequently, the mixed mode fracture behaviors of two simple concrete specimens are simulated and the simulation results achieve good agreements with the other simulations and experimental results.
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收藏
页数：22
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