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Three Dimensional FE Analysis of Acoustic Emission of Composite Plate  

Paik, Seung-Hoon (서울대학교 기계항공공학부 대학원 항공기구조연구실)
Park, Si-Hyong (서울대학교 기계항공공학부 대학원 항공기구조연구실)
Kim, Seung Jo (서울대학교 기계항공공학부)
Publication Information
Composites Research / v.18, no.5, 2005 , pp. 15-20 More about this Journal
Abstract
In this paper, damage induced acoustic emission in the composite plate in numerically simulated by using the three dimensional finite element method and explicit time integration. Acoustic source is modeled by equivalent volume source. To verify the proposed method, dynamic displacements due to the elastic wave are compared with the experiment when the fiber is broken in the single fiber embedded isotropic plate. For the laminated composite plates, the results are compared between homogenized model and DNS approach which models fibers and matrix separately. To capture high frequencies in the elastic wave, small time step size and a large number of meshes are required. The parallel computing technology is introduced to solve a large scale problem efficiently.
Keywords
Acoustic Emission; Explicit FEM; Parallel Computing;
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