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 and 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:
Journal Article
Journal or Publication Title:
Computers and Structures
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/ta
Subjects:
ID Code:
54239
Deposited By:
Deposited On:
17 May 2012 10:33
Refereed?:
Yes
Published?:
Published
Last Modified:
24 Nov 2020 01:55