Finite element analysis of stress concentrations and failure criteria in composite plates with circular holes

doi:10.1007/s11465-014-0307-9

Frontiers of Mechanical Engineering

2014, Vol. 9

Issue (3): 281-294 https://doi.org/10.1007/s11465-014-0307-9

本期目录

Finite element analysis of stress concentrations and failure criteria in composite plates with circular holes

Abdelhak KHECHAI^1,^*(

),Abdelouahab TATI²,Abdelhamid GUETTALA¹

1. Laboratory of Civil Engineering, University of Biskra, Biskra 07000, Algeria
2. Laboratory of Energy Engineering and Materials, University of Biskra, Biskra 07000, Algeria

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Abstract：

In this study, the stress concentration factors (SCF) in cross-and-angle-ply laminated composite plates as well as in isotropic plates with single circular holes subjected to uniaxial loading is studied. A quadrilateral finite element of four-node with 32 degrees of freedom at each node, previously developed for the bending and mechanical buckling of laminated composite plates, is used to evaluate the stress distribution in laminated composite plates with central circular holes. Based up on the classical plate theory, the present finite element is a combination of a linear isoparametric membrane element and a high precision rectangular Hermitian element. The numerical results obtained by the present element compare favorably with those obtained by the analytic approaches published in literature. It is observed that the obtained results are very close to the reference results, which demonstrates the accuracy of the present element. Additionally, to determine the first ply failure (FPF) of laminated plate, several failure criterions are employed. Finally, to show the effect of E1/E2 ratio on the failure of plates, a number of figures are given for different fiber orientation angles.

Key words： laminated composite plates stress concentration geometric singularity anisotropic effect

收稿日期: 2014-06-12 出版日期: 2014-10-10

Corresponding Author(s): Abdelhak KHECHAI

引用本文:

. [J]. Frontiers of Mechanical Engineering, 2014, 9(3): 281-294.
Abdelhak KHECHAI,Abdelouahab TATI,Abdelhamid GUETTALA. Finite element analysis of stress concentrations and failure criteria in composite plates with circular holes. Front. Mech. Eng., 2014, 9(3): 281-294.

链接本文:

https://academic.hep.com.cn/fme/CN/10.1007/s11465-014-0307-9
https://academic.hep.com.cn/fme/CN/Y2014/V9/I3/281

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