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Eigenfrequency changes of structures due to cracks, notches or other geometrical changes
BBC Brown Boveri Research Centre.ORCID iD: 0000-0002-0307-8917
1982 (English)In: Journal of the mechanics and physics of solids, ISSN 0022-5096, E-ISSN 1873-4782, Vol. 30, no 5, 339-353 p.Article in journal (Refereed) Published
Abstract [en]

A first order perturbation method is presented which predicts the changes in resonance frequencies of a structure resulting from cracks, notches or other geometrical changes. The eigenfrequency changes due to a crack are shown to be dependent on the strain energy of a static solution which is easily obtainable for small cracks and other small cut-outs. The method has been tested for three different cases, and the predicted results correlate very closely to experimental and numerical results.

Place, publisher, year, edition, pages
1982. Vol. 30, no 5, 339-353 p.
Keyword [en]
STRUCTURAL ANALYSIS
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-25467DOI: 10.1016/0022-5096(82)90004-7ISI: A1982PP03100004OAI: oai:DiVA.org:kth-25467DiVA: diva2:358715
Note
QC 20101025Available from: 2010-10-25 Created: 2010-10-25 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Effects of cracks and other geometrical changes on the vibration of structures: with special application to turbine blades
Open this publication in new window or tab >>Effects of cracks and other geometrical changes on the vibration of structures: with special application to turbine blades
1982 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 1982. 24 p.
Series
Rapport / Hållfasthetslära, KTH, ISSN 0281-1502 ; 37
National Category
Applied Mechanics
Research subject
Solid Mechanics
Identifiers
urn:nbn:se:kth:diva-196787 (URN)
Public defence
Kollegiesalen, KTH, Stockholm (English)
Opponent
Supervisors
Note

QC 20161122

Available from: 2016-11-22 Created: 2016-11-21 Last updated: 2016-11-22Bibliographically approved

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Gudmundson, Peter

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