Mohamed, Ikhsan, Hutchins, David A., Davis, Lee A. J., Laureti, Stefano and Ricci, Marco (2017) Ultrasonic NDE of thick polyurethane flexible riser stiffener material. Nondestructive Testing and Evaluation, 32 (4). pp. 343-362. doi:10.1080/10589759.2016.1241253 ISSN 1058-9759.

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Abstract

Ultrasonic signals at frequencies below 1 MHz have been used for the NDE of thick polymer samples. Coded signals such as chirps and bipolar Golay codes, together with pulse compression and signal processing, have been used to penetrate into thick sections of attenuating polypropylene riser stiffener material, using piezocomposite transducers to provide the required bandwidth. It is shown that this approach can be used to detect manufacturing defects such as air bubbles in flexible riser stiffeners, which might compromise their performance in the offshore oil and gas environments.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics T Technology > TN Mining engineering. Metallurgy T Technology > TP Chemical technology
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH):	Oil well drilling rigs -- Design and construction, Polyurethanes, Ultrasonic waves -- Attenuation
Journal or Publication Title:	Nondestructive Testing and Evaluation
Publisher:	Taylor & Francis Ltd.
ISSN:	1058-9759
Official Date:	2017
Dates:	Date Event 2017 Published 17 October 2016 Available 15 September 2016 Accepted 14 June 2016 Submitted
Volume:	32
Number:	4
Page Range:	pp. 343-362
DOI:	10.1080/10589759.2016.1241253
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Open Access (Creative Commons)
Date of first compliant deposit:	27 September 2016
Date of first compliant Open Access:	23 February 2017
Funder:	Engineering and Physical Sciences Research Council (EPSRC)
Grant number:	EP/K031201/1
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID EP/K031201/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266

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