Fracture of concrete structure using simplified meshless method

被引：6

作者：

Dong, Y. ^{[1
]}

Wu, S. ^{[1
]}

Xu, S. S. ^{[1
]}

Zhang, Y. ^{[1
]}

Fang, S. ^{[1
]}

机构：

[1] Beijing Univ Technol, Dept Engn Mech, Beijing, Peoples R China

来源：

CEMENT AND CONCRETE RESEARCH | 2009年 / 39卷 / 10期

关键词：

Computational mechanics; Crack; Fracture; Meshless; EFG; Material failure; Concrete; Enrichment; Partition of unity; FINITE-ELEMENT-METHOD;

D O I：

10.1016/j.cemconres.2009.06.014

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Numerical analysis of fracture in concrete is studied with a simplified meshless method. In this meshless method, the crack is represented by a set of disconnected cohesive crack segments that are required to pass through meshless nodes. The crack method therefore falls in the category of discrete crack methods. However, in contrast to most other methods where the crack is represented as continuous line/surface, no representation of the crack surface is needed. Hence, there is no need to track the crack path. Branching cracks and coalescing cracks are a natural outcome of the analysis and no specific algorithms need to be incorporated to model such complicated events. Besides the simplicity of the method, the accuracy is maintained. This is demonstrated through several examples. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：966 / 972

页数：7

共 37 条

[1]

[Anonymous], 1992, Ph.D. thesis

[2]

Arrea M, 1982, 8113 CORNELL U DEP S

[3]

Barenblatt GI., 1962, ADV APPL MECH, V7, P55, DOI [10.1016/ S0065-2156(08)70121-2, DOI 10.1016/S0065-2156(08)70121-2]

[4]

BAZANT ZP, 1985, J ENG MECH-ASCE, V111, P381

[5]

Bazant ZP, 1983, Mater Et Constr, V16, P155, DOI [10.1007/BF02486267, DOI 10.1007/BF02486267]

[6] ELEMENT-FREE GALERKIN METHODS FOR STATIC AND DYNAMIC FRACTURE [J].

BELYTSCHKO, T ;

LU, YY ;

GU, L ;

TABBARA, M .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1995, 32 (17-18) :2547-2570

[7] CRACK-PROPAGATION BY ELEMENT-FREE GALERKIN METHODS [J].

BELYTSCHKO, T ;

LU, YY ;

GU, L .

ENGINEERING FRACTURE MECHANICS, 1995, 51 (02) :295-315

[8] ELEMENT-FREE GALERKIN METHODS [J].

BELYTSCHKO, T ;

LU, YY ;

GU, L .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1994, 37 (02) :229-256

[9] Meshless methods: An overview and recent developments [J].

Belytschko, T ;

Krongauz, Y ;

Organ, D ;

Fleming, M ;

Krysl, P .

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1996, 139 (1-4) :3-47

[10] Micromechanical analysis of quasi-brittle materials using fracture-based interface elements [J].

Carol, I ;

López, CM ;

Roa, O .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 2001, 52 (1-2) :193-215

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