A 2D Cosserat finite element based on a damage-plastic model for brittle materials

被引：30

作者：

Addessi, Daniela ^{[1
]}

机构：

[1] Univ Roma Sapienza, Dipartimento Ingn Strutturale & Geotecn, I-00184 Rome, Italy

来源：

COMPUTERS & STRUCTURES | 2014年 / 135卷

关键词：

Damage; Plasticity; Cosserat continuum; Finite element; NONLOCAL DAMAGE; CONCRETE; CONTINUUM; MASONRY; BEHAVIOR;

D O I：

10.1016/j.compstruc.2014.01.003

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A 2D Cosserat model with a damage-plastic isotropic constitutive law for brittle-like materials is presented. Different damaging mechanisms in tension and compression are considered. The plastic flow is described by introducing a suitable yield function and evolution laws in terms of effective stresses. Small strain and displacement assumptions hold. A 4-node finite element is formulated with three degrees-of-freedom for each node and a predictor-corrector procedure is used to solve the damage-plastic evolutionary problem. The lateral response of walls under monotonic and cyclic horizontal actions is analyzed and a satisfactory description of the global response curves and damaging mechanisms is obtained. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：20 / 31

页数：12

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