Temperature affected guided wave propagation in a composite plate complementing the Open Guided Waves Platform

  • The influence of temperature is regarded as particularly important for a structural health monitoring system based on ultrasonic guided waves. Since the temperature effect causes stronger signal changes than a typical defect, the former must be addressed and compensated for reliable damage assessment. Development of new temperature compensation techniques as well as the comparison of existing algorithms require high-quality benchmark measurements. This paper investigates a carbon fiber reinforced plastic (CFRP) plate that was fully characterized in previous research in terms of stiffness tensor and guided wave propagation. The same CFRP plate is used here for the analysis of the temperature effect for a wide range of ultrasound frequencies and temperatures. The measurement data are a contribution to the Open Guided Waves (OGW) platform: http://www.open-guided-waves.de. The technical validation includes initial results on the analysis of phase velocity variations with temperature and exemplary damage detection results using state-of-the-art signal processing methods that aim to suppress the temperature effect.

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Author:Jochen Moll, Christian Kexel, Serena Pötzsch, Marcel Rennoch, Axel Siegfried Herrmann
Pubmed Id:https://pubmed.ncbi.nlm.nih.gov/31586118
Parent Title (English):Scientific data
Publisher:Nature Publ. Group
Place of publication:London
Document Type:Article
Year of Completion:2019
Date of first Publication:2019/10/04
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2019/10/16
Tag:Design, synthesis and processing; Mechanical engineering
Issue:1, Art. 191
Page Number:9
First Page:1
Last Page:9
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The Creative Commons Public Domain Dedication waiver http://creativecommons.org/publicdomain/zero/1.0/ applies to the metadata files associated with this article.
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - Namensnennung 4.0