Original title:
Vliv bodového zatížení na tvar trhliny v tlakové polymerní trubce
Translated title:
Influence of point load on crack shape in polymeric pipe
Authors:
Ševčík, Martin ; Hutař, Pavel ; Náhlík, Luboš ; Pinter, G. ; Frank, A. Document type: Papers Conference/Event: Víceúrovňový design pokrokových materiálů 2010, Brno (CZ), 2010-12-02
Year:
2010
Language:
cze Abstract:
[cze][eng] V práci je detailně popsán algoritmus, vedoucí k numerickému odhadu skutečného tvaru trhliny v tlakové polymerní trubce.The aim of this work was to develop an easy applicable algorithm of numerical model creation simulating a cracked polymeric pipe under various combination of loading. Proposed algorithm is able to find a real crack front shape using iterative procedure. The main aim was to study the effect of the point load and its consequences on the crack front shape. It was numerically confirmed that point loading causes grater crack extension in axial direction than in the case of pipe loaded by pure inner pressure. This results leads to higher stress intensity factor and lower residual life-time of the pipe system.
Keywords:
crack; FEM; pipe line; point loading; stress intensity factor Project no.: CEZ:AV0Z20410507 (CEP), GA106/09/0279 (CEP), GC101/09/J027 (CEP), GD106/09/H035 (CEP) Funding provider: GA ČR, GA ČR, GA ČR Host item entry: Víceúrovňový design pokrokových materiálů - 2010. Sborník doktorké konference, ISBN 978-80-87434-02-4
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/11104/0192702