Nonlinear homogenized properties of defected composite materials

被引：40

作者：

Bruno, Domenico ^{[1
]}

Greco, Fabrizio ^{[1
]}

Luciano, Raimondo ^{[1
]}

Nevone Blasi, Paolo ^{[1
]}

机构：

[1] Univ Calabria, Dept Struct Engn, I-87036 Cosenza, Italy

来源：

COMPUTERS & STRUCTURES | 2014年 / 134卷

关键词：

Matrix cracking; Interface debonding; Nonlinear homogenized properties; Crack self-contact; Bifurcation; Instability; FIBER-REINFORCED COMPOSITES; MACROSCOPIC INSTABILITIES; MICROSCOPIC BIFURCATION; PERIODIC MICROSTRUCTURE; ELASTIC-MATERIALS; CELLULAR SOLIDS; STABILITY; FAILURE; HONEYCOMBS; MECHANICS;

D O I：

10.1016/j.compstruc.2013.11.018

中图分类号：

TP39 [计算机的应用];

学科分类号：

080201 [机械制造及其自动化];

摘要：

The macroscopic response of elastic composite materials with periodic defected microstructures under large deformations is analyzed. The effects of microscopic instability and bifurcation are studied by using an updated Lagrangian formulation and frictionless self-contact between crack faces is accounted. Two special classes of homogenization problems are examined: effective contact and self-adjoint data. Numerical applications are developed by means of an FE approach with reference to a cellular material with diagonal microcracks and to a laminated microstructure with interface debonding. The strong role of crack self-contact nonlinearities and the influence of microscopic defects on the homogenized composite properties are pointed out. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：102 / 111

页数：10

共 47 条

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