Flaw detection in sandwich plates based on time-harmonic response using genetic algorithm
✍ Scribed by G.R. Liu; S.C. Chen
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 174 KB
- Volume
- 190
- Category
- Article
- ISSN
- 0045-7825
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✦ Synopsis
An inverse identi®cation technique is proposed to assess the presence, location, size and degree of ¯aw in the core layer of sandwich plates. The time-harmonic response of the sandwich plates is used as the input for inverse analysis. The responses of the plates in forward analysis are predicted using ®nite element method (FEM) based on Mindlin plate theory. The ¯aw is characterized by a set of parameters. The genetic algorithm (GA) is applied to search the parameters. To improve the eciency of GA in searching for the true solution, a two-stage searching method is proposed. Numerical examples are given to illustrate the proposed technique.