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A state space finite element for laminated composites with free edges and subjected to transverse and in-plane loads

Ye, J Q and Sheng, H Y and Qin, Q H (2004) A state space finite element for laminated composites with free edges and subjected to transverse and in-plane loads. Computers & Structures, 82 (15-16). pp. 1131-1141. ISSN 0045-7949

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Abstract

On the basis of the theory of three-dimensional elasticity, this paper presents a state space finite element solution for the stresses in cross-ply laminates subjected to combined transverse and in-plane loads. The state space formulation is introduced to solve for through-thickness stress distributions, while the traditional finite elements are used to approximate in-plane variations of the state variables. One of the direct applications of this solution is for the analysis of free-edge effect in cross-ply laminates. By appropriately describing the applied in-plane boundary tractions or boundary displacements, plates having complete free edges or boundary cross-sections with localized stress-free surfaces can be analyzed. Compared with the traditional finite element method, the new solution provides not only continuous through-thickness distributions of both displacements and transverse stresses, but also excellent approximations to the stress singularities in the vicinity of free edges or the above-mentioned localized stress-free surfaces. (C) 2004 Elsevier Ltd. All rights reserved.

Item Type: Article
Journal or Publication Title: Computers & Structures
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
ID Code: 54239
Deposited By: ep_importer_pure
Deposited On: 17 May 2012 11:33
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 23:27
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/54239

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