Rotational interface formulation for delamination analysis of composite laminates

被引:2
作者
Jansson, NE [1 ]
Larsson, R [1 ]
机构
[1] Chalmers Univ Technol, Dept Appl Mech, SE-41296 Gothenburg, Sweden
关键词
composite materials; delamination; interface; cohesive zone; regularization;
D O I
10.1016/S0045-7949(03)00335-3
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
In this paper, delamination progression in a composite laminate is modelled by interface elements within a geometrically non-linear FE analysis setting. With the assumption of small continuum deformations, a rotational interface formulation is obtained from a recently proposed formulation based on the concept of a regularised strong discontinuity, cf. [Int. J. Numer. Meth. Eng. 54 (2002) 473]. The degradation of the stress vector in the cohesive zone is described by a damage-plasticity coupling, which is calibrated analytically against experimental data of mixed-mode fracture energies. The paper is concluded by a couple of numerical examples that describe the predictive capabilities of the interface formulation. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2705 / 2716
页数:12
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