UNSPECIFIED. (1994) THE ULTRASONIC IMPULSE-RESPONSE OF UNIDIRECTIONAL CARBON-FIBER LAMINATES. ULTRASONICS, 32 (5). pp. 347-357. ISSN 0041-624X

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Abstract

The impulse response of undirectional carbon fibre reinforced polymer laminates has been determined, using a pulsed laser to generate the impulse and a broadband capacitance transducer to detect the normal component of surface motion. Waveforms were recorded at a series of positions along lines both parallel and perpendicular to the fibre axis. Velocity profiles of major arrivals have been determined, and shown to correspond to the expected group and phase velocities for the quasi and pure bulk-wave modes respectively. The elastic stiffness constants for the material have been calculated using measured phase velocity surfaces for pure modes and the reconstructed phase velocity surfaces obtained from measured group velocity data for quasi-modes.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) R Medicine
Journal or Publication Title:	ULTRASONICS
Publisher:	BUTTERWORTH-HEINEMANN LTD
ISSN:	0041-624X
Date:	September 1994
Volume:	32
Number:	5
Number of Pages:	11
Page Range:	pp. 347-357
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/20371

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