An approach for dealing with high local stresses in finite element analyses

被引：9

作者：

Helenon, F. ^{[1
]}

Wisnom, M. R. ^{[1
]}

Hallett, S. R. ^{[1
]}

Allegri, G. ^{[1
]}

机构：

[1] Univ Bristol, Adv Composites Ctr Innovat & Sci, Bristol BS8 1TR, Avon, England

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2010年 / 41卷 / 09期

关键词：

Finite element analysis (FEA); Laminates; Stress concentrations; Delamination; DISSIMILAR ANISOTROPIC MEDIA; LAMINATED COMPOSITES; FRACTURE-MECHANICS; DELAMINATION; CRACKS; STRENGTH; PLIES; BIMATERIALS; INTERFACES; INITIATION;

D O I：

10.1016/j.compositesa.2010.04.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly localised through-thickness stress concentrations, higher than the strength of the material, may occur when a linear elastic finite element analysis of a composite structure is performed. Such stresses may be caused by real geometrical or material discontinuities or by artefacts in the model The objective of this paper is to present a validated approach to determine when these high stresses will not lead to failure by delamination or matrix cracking and can therefore be ignored Named as the High Stress Concentration (HSC) method, the approach presented in this paper is found to provide good results when applied to several finite element analyses, and is also in agreement with experimental data. (C) 2010 Elsevier Ltd All rights reserved.

引用

页码：1156 / 1163

页数：8

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