Affiliation:
1. University of California, Irvine Irvine, California 92717
Abstract
This paper presents the results of a study on the effect of prescribed delamination on the natural frequencies of laminated beam specimens. Experimental modal analysis was used to measure the effect of delamination length on the first four fre quencies of the simply supported test specimens. The experimental results were cor roborated with detailed finite element models as well as with simplified beam theory models. The presence of a delamination degraded the even numbered vibration modes much more rapidly than the odd numbered modes for a delamination centered at the speci men midspan. Delaminations which covered 1/3 of the specimen length had no more than a 20% effect on any of the first four frequencies.
Subject
Materials Chemistry,Mechanical Engineering,Mechanics of Materials,Ceramics and Composites
Cited by
212 articles.
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