Elastodynamic reciprocity relations for wave scattering by flaws in fiber-reinforced composite plates

Karunasena, W. (2008) Elastodynamic reciprocity relations for wave scattering by flaws in fiber-reinforced composite plates. Journal of Mechanics of Materials and Structures, 3 (10). pp. 1831-1846. ISSN 1559-3959

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Abstract

Due to light weight, high performance and increased service life, fiber-reinforced composite materials are receiving wide attention as an advanced material in many branches of engineering. Structural integrity of composite structures is affected by the presence of flaws such as cracks and delaminations in the composite material. In this paper, elastodynamic reciprocity relations are developed for wave scattering by flaws when guided waves are allowed to propagate in fiber-reinforced composite plates. These relations are useful to check the accuracy of the numerical solution for the scattered wave field in ultrasonic non-destructive evaluation of flaws in composite plate-like structural elements. The classical elastodynamic reciprocity theorem is used to derive simple reciprocity relations for reflected and transmitted wave amplitudes and the corresponding energies associated with the wave modes in a plate with an arbitrary stacking sequence. The derived reciprocity relations are used to check the accuracy of the numerical solution for several example scattering problems.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright: Authors keep the copyright to their work and give MSP a license to publish the material.
Depositing User: Assoc Prof Karu Karunasena
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering
Date Deposited: 16 Jun 2009 12:05
Last Modified: 02 Jul 2013 23:17
Uncontrolled Keywords: reciprocity relations; wave scattering; composite plates; cracks; delaminations; finite elements; reflection and transmission coefficients
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
01 Mathematical Sciences > 0102 Applied Mathematics > 010204 Dynamical Systems in Applications
Socio-Economic Objective (SEO2008): B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870302 Metals (e.g. Composites, Coatings, Bonding)
URI: http://eprints.usq.edu.au/id/eprint/5154

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