Number of the records: 1
Stanovení reálného tvaru trhliny v polyolefinových trubkách
- 1.0353452 - ÚFM 2011 RIV SK cze C - Conference Paper (international conference)
Ševčík, Martin - Hutař, Pavel - Náhlík, Luboš
Stanovení reálného tvaru trhliny v polyolefinových trubkách.
[Determination of real crack shape in polyolefin pipes.]
SEMDOK 2010. Žilina: University of Žilina, 2010, s. 208-211. ISBN 978-80-554-0157-7.
[SEMDOK 2010. Terchová (SK), 27.01.2010-29.01.2010]
R&D Projects: GA ČR GD106/09/H035; GA ČR GC101/09/J027
Institutional research plan: CEZ:AV0Z20410507
Keywords : crack * polyethylen pipe * fracture mechanics * crack shape
Subject RIV: JL - Materials Fatigue, Friction Mechanics
Práce se zabývá numerickou simulací vedoucí k určení skutečného tvaru trhliny, která vzniká únavovým porušením v polyolefinových trubkách.
This work is focused on a numerical modelling of crack propagation in a polyolefin pipe. The three-dimensional model of the cracked pipe is modelled where the geometry of the semi-elliptical crack is variable. The main aim is to find the geometry of the crack in which the stress intensity factor is more or less constant. The crack front is formed by twenty points in order to estimate the stress intensity factor in each point. A few points close to the surface are ignored because of the change of the singularity. The results presented are compared with general relations founded in the literature. The stress intensity factor estimated shows the smooth change between those estimated for constant crack geometry.
Permanent Link: http://hdl.handle.net/11104/0192699
Number of the records: 1