Hysteretic nonlinearity analysis in damaged composite plates using guided waves

Sensitivity of nonlinear acoustic methods to the presence and the evolution of micro-damage has been proven in various studies on a wide range of materials. In this contribution, a guided wave approach is proposed to characterize polymer based composite plates taken at intact as well as damaged stat...

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Bibliographic Details
Published in:	The Journal of the Acoustical Society of America Vol. 133; no. 4; pp. EL256 - EL261
Main Authors:	Baccouche, Yousra, Bentahar, Mourad, Mechri, Charfeddine, El Guerjouma, Rachid, Hédi Ben Ghozlen, Mohamed
Format:	Journal Article
Language:	English
Published:	United States 01-04-2013
Subjects:	Acoustics - instrumentation Elastic Modulus Equipment Design Equipment Failure Materials Testing Motion Nonlinear Dynamics Polymers - chemistry Sound Stress, Mechanical Time Factors Vibration
Online Access:	Get full text
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Summary:	Sensitivity of nonlinear acoustic methods to the presence and the evolution of micro-damage has been proven in various studies on a wide range of materials. In this contribution, a guided wave approach is proposed to characterize polymer based composite plates taken at intact as well as damaged states. The changes in the nonlinear hysteretic parameters are observed by changing the order of the excited flexural resonances. The analysis is based on the evolution of the velocity frequency dispersion of the generated guided waves, where flexural modes are considered separately and together as a function of the dynamic strain.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0001-4966 1520-8524
DOI:	10.1121/1.4793584