Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1468127 | Composites Part A: Applied Science and Manufacturing | 2007 | 11 Pages |
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.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J.-H. Kim, F. Pierron, M.R. Wisnom, K. Syed-Muhamad,