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Study of Degradation in Composite Lap Shear joints using a Guided Wave Technique

Kumar, Vijaya RL and Bhat, MR and Murthy, CRL (2013) Study of Degradation in Composite Lap Shear joints using a Guided Wave Technique. In: MATERIALS EVALUATION, 71 (9). pp. 1071-1080.

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Abstract

Experimental and numerical investigations were carried out using lamb waves to study the degradation in adhesive joints made of carbon fiber reinforced plastic (CFRP) adherends and epoxy adhesive. Degradation was inducted into the epoxy adhesive by adding different amounts of polyvinyl alcohol. Fundamental lamb wave modes were excited in the CFRP adherends using piezoelectric transducer disks and made to propagate through the adhesive layer. The received waveforms across adhesive joints with varied degradation were studied. A 2D finite element model was utilized to verify the experimental results. Good correlation was observed between numerical and experimental results. Details of the investigation and results obtained are presented in the paper.

Item Type: Journal Article
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Additional Information: Copy right for this article belongs to the AMER SOC NONDESTRUCTIVE TEST, 1711 ARLINGATE LANE PO BOX 28518, COLUMBUS, OH 43228-0518 USA
Keywords: composites; adhesive joints; lamb wave; bond quality
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 26 Aug 2015 04:59
Last Modified: 26 Aug 2015 04:59
URI: http://eprints.iisc.ernet.in/id/eprint/52208

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