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Identification of the local stiffness reduction of a damaged composite plate using the virtual fields method

Kim, J.-H. and Pierron, F. and Wisnom, M. R. and Kashif, Syed Muhammad (2007) Identification of the local stiffness reduction of a damaged composite plate using the virtual fields method. Composites Part A: Applied Science and Manufacturing, 38 (Pt A). pp. 2065-2075. ISSN 1359835X

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Abstract

In the present study, a damage detection problem is formulated as the identification of the spatial stiffness distribution in a damaged composite plate. Full-field heterogeneous curvature fields obtained from an optical deflectometry technique are processed by using the virtual fields method adapted to retrieve the 2D stiffness distribution map of a damaged carbon-epoxy plate. The method not only picks up the location of the damage but also provides a fairly good estimate of the stiffness reduction in the damaged area. In this paper, the procedure is described, validated on simulated measurements and some initial experimental results are given. � 2007 Elsevier Ltd. All rights reserved.

Item Type: Article (Journal)
Additional Information: 6377/6732
Uncontrolled Keywords: B. Optical properties/techniques; B. Delamination; C. Damage mechanics; D. Non-destructive testing
Subjects: T Technology > T Technology (General) > T173.2 Technological change
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User: Dr Syed Muhammad Kashif .
Date Deposited: 03 Jan 2013 11:26
Last Modified: 03 Jan 2013 11:26
URI: http://irep.iium.edu.my/id/eprint/6732

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