Numerical modelling of obliquely incident guided wave scattering by a crack in a laminated composite plate

Karunasena, W.M. (2004) Numerical modelling of obliquely incident guided wave scattering by a crack in a laminated composite plate. In: Proceedings of Structural Integrity and Fracture Conference 2004, pp. 181-187. From: Structural Integrity and Fracture, 26-29 September 2004, Brisbane, QLD, Australia.

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Abstract

In this paper, we consider scattering by a guided wave incident obliquely on a surface breaking crack in a laminated composite plate, with a view to ultrasonic nondestructive assessment of cracks. The solution to this problem is the first step towards analyzing the general three-dimensional scattering problem. The method used for modeling is a hybrid method which combines finite element method with wave function expansion procedure. The reciprocity relations governing the reflection and transmission coefficients are established and are used to check the numerical accuracy. Also, the principle of energy conservation is used as another check for the accuracy of the numerical results. Numerical results for reflection and transmission coefficients are presented for an 8-layer cross-ply laminated plate.

Item ID: 14772
Item Type: Conference Item (Research - E1)
ISBN: 978-1-86499-760-6
Keywords: composite plates; cracks; guided waves; non-destructive evaluation; numerical modelling; wave scattering
Date Deposited: 31 Aug 2017 23:48
FoR Codes: 09 ENGINEERING > 0905 Civil Engineering > 090506 Structural Engineering @ 100%
SEO Codes: 87 CONSTRUCTION > 8703 Construction Materials Performance and Processes > 870302 Metals (e.g. Composites, Coatings, Bonding) @ 51%
87 CONSTRUCTION > 8799 Other Construction > 879999 Construction not elsewhere classified @ 49%
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