Defect detectability in composite plates with variable thickness using Lamb waves

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F20%3AN0000027" target="_blank" >RIV/00010669:_____/20:N0000027 - isvavai.cz</a>

Result on the web

<a href="https://dspace.vsb.cz/handle/10084/142403" target="_blank" >https://dspace.vsb.cz/handle/10084/142403</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Defect detectability in composite plates with variable thickness using Lamb waves

Original language description

In this work thermoplastic composite plates with constant and variable thickness were subjected to multiple impact damages. The network of PZT transducers was utilized to excite Lamb waves at different frequencies. Influence of the variable thickness on the guided wave propagation was evaluated and compared to the constant thickness plate. Optimal frequency was chosen from the point of a clear mode shape. Signals before and after impacts were evaluated using two parameters: correlation coefficient and time delay of the particular wave mode. Finally, RAPID (Reconstruction Algorithm for the Probabilistic Imaging of Damage) algorithm was used to visualize impact damages. Damage induced time delay parameter showed correct impact localization on both plates.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Project

<a href="/en/project/FV30033" target="_blank" >FV30033: Design and manufacturing process development of primary aircraft parts of advanced shapes of reinforced thermoplastics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Experimental Stress Analysis 2020 Book of extended abstracts

ISBN

978-80-248-4453-4

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

487-490

Publisher name

VŠB – Technical University of Ostrava

Place of publication

Ostrava

Event location

Sobotín

Event date

Oct 19, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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