Original title: Influence of corner point singularity on crack behaviour
Translated title: Vliv rohové singularity na chování trhliny
Authors: Hutař, Pavel ; Náhlík, Luboš
Document type: Papers
Conference/Event: Engineering Mechanics 2007, Svratka (CZ), 2007-05-14 / 2007-05-17
Year: 2007
Language: eng
Abstract: [eng] [cze]
The influence of corner singularity on crack behaviour for a threedimensional structure is described in this paper. The distribution of stress singularity through the thickness of a specimen provides us with an indication of crack behaviour close to a free surface. A decrease in fatigue crack propagation rate in the area influenced by the free surface was carried out. The change of fatigue crack propagation rate in the boundary layer, leads to different intersecting angles between crack front and free surface as a function of Poisson’s ratio. V tomto příspěvku je studován vliv rohové singularity na lomové chování tělesa. Je naznačena změna rozdělení napětí po tloušťce tělesa, průběh napětí od středu tělesa až na jeho povrch. Dále je studován vliv délky trhliny a okrajových podmínek.
Keywords: corner singularity
Project no.: CEZ:AV0Z20410507 (CEP), GP106/06/P239 (CEP)
Funding provider: GA ČR
Host item entry: Engineering Mechanics 2007, ISBN 978-80-87012-06-2

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0158325

Permalink: http://www.nusl.cz/ntk/nusl-38506


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Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers