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Crack Detection using Non-linear and Dissipative Acoustics
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering.
1998 (English)Independent thesis Advanced level (degree of Master (One Year))Student thesis
Abstract [en]

A theoretical model for identification of acoustical non-linearity using Burger's equation was implemented in a MATLAB program. The program identified both the non-linearity parameter and the distance from the signal source. Tests were performed in order to verify the theories. Tests with a steel bar showed no detectable non-linearity, probably due to insufficient wave amplitude by the signal source. A crack model was made with successful result.

Place, publisher, year, edition, pages
1998. , 31 p.
Keyword [en]
Non-linear acoustics, Non-linear parameter, Burger's equation, Bessel-Fubini, Fay, Mendousse, Hedberg, Non-destructive testing (NDT), Non-destructive Evaluation (NDE), crack detection.
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:bth-2592Local ID: oai:bth.se:arkivexC125660F002EA348C12568A3002CABC5OAI: oai:DiVA.org:bth-2592DiVA: diva2:829877
Uppsok
Technology
Supervisors
Available from: 2015-04-22 Created: 2000-03-15 Last updated: 2015-06-30Bibliographically approved

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Citation style
  • apa
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  • ieee
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Language
  • de-DE
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Output format
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