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Proceedings Paper

Application of the multi-scale finite element method to wave propagation problems in damaged structures
Author(s): F. Casadei; M. Ruzzene
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Paper Abstract

This work illustrates the possibility to extend the field of application of the Multi-Scale Finite Element Method (MsFEM) to structural mechanics problems that involve localized geometrical discontinuities like cracks or notches. The main idea is to construct finite elements with an arbitrary number of edge nodes that describe the actual geometry of the damage with shape functions that are defined as local solutions of the differential operator of the specific problem according to the MsFEM approach. The small scale information are then brought to the large scale model through the coupling of the global system matrices that are assembled using classical finite element procedures. The efficiency of the method is demonstrated through selected numerical examples that constitute classical problems of great interest to the structural health monitoring community.

Paper Details

Date Published: 18 April 2011
PDF: 12 pages
Proc. SPIE 7984, Health Monitoring of Structural and Biological Systems 2011, 79842Q (18 April 2011); doi: 10.1117/12.880085
Show Author Affiliations
F. Casadei, Georgia Institute of Technology (United States)
M. Ruzzene, Georgia Institute of Technology (United States)

Published in SPIE Proceedings Vol. 7984:
Health Monitoring of Structural and Biological Systems 2011
Tribikram Kundu, Editor(s)

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