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Free-edge effect in cross-ply laminated plates under a uniform extension

Sheng, H Y and Ye, J Q (2004) Free-edge effect in cross-ply laminated plates under a uniform extension. Structural engineering and mechanics, 18 (3). pp. 377-388. ISSN 1225-4568

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Abstract

Based on the basic equations of elasticity, free-edge effects on stresses in cross-ply laminated plates are found by using the state space method. The laminates are subjected to uniaxial-uniform extension plate, which is a typical example of general plane strain problem. The study takes into account material constants of all individual material layers and the state equation of a laminate is solved analytically in the through thickness direction. By this approach, a composite plate may be composed of an arbitrary number of orthotropic layers, each of which may have different material properties and thickness. The solution provides a continuous displacement and inter-laminar stress fields across all material interfaces and an approxiamte prediction to the singularity of stresses occurring in the boundary layer region of a free-edge. Numerical solutions are obtained and compared with the results obtained from an alternative numerical method.

Item Type: Article
Journal or Publication Title: Structural engineering and mechanics
Uncontrolled Keywords: laminated plates ; uniform extension ; free edge effects ; state equation ; analytical solution
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Departments: Faculty of Science and Technology > Engineering
ID Code: 54277
Deposited By: ep_importer_pure
Deposited On: 21 May 2012 11:40
Refereed?: Yes
Published?: Published
Last Modified: 24 Jan 2014 05:26
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/54277

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