0434696 - ÚFM 2015 RIV CH eng C - Konferenční příspěvek (zahraniční konf.)
Hutař, Pavel - Ševčík, Martin - Náhlík, Luboš - Frank, A. - Kučera, J. - Pinter, G.
Numerical lifetime prediction of polymer pipes taking into account residual stress.
Advanced in Fracture and Mechanics XII. Zurich: Trans Tech Publications, 2014 - (Milazzo, A.; Aliabadi, M.), s. 169-172. Key Engineering Materials, 577-578. ISBN 978-3-03785-830-1. ISSN 1013-9826.
[FDM 2013 - International Conference on Fracture and Damage Mechanics /12./. Sardinia (IT), 17.09.2013-19.09.2013]
Grant CEP: GA MŠMT(CZ) EE2.3.30.0063; GA ČR(CZ) GAP108/12/1560
Institucionální podpora: RVO:68081723
Klíčová slova: polymer pipes * residual stress * stress intensity factor * slow crack growth
Kód oboru RIV: JL - Únava materiálu a lomová mechanika
DOI: https://doi.org/10.4028/www.scientific.net/KEM.577-578.169

In this paper a methodology for assessment of residual stress effects on crack behaviour in the polymer pipe is developed. For simplicitys sake, a linear distribution of residual stresses across the pipe wall is assumed. Linear elastic fracture mechanics is used for the fracture mechanics analysis of the cracked pipe. An approximate relation for the stress intensity factor estimation for a crack in a polymer pipe, with residual stress taken into account is suggested and discussed. The methodology presented can be helpful for a rapid lifetime estimation of polyolefin pipelines.
Trvalý link: http://hdl.handle.net/11104/0238682