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Damage prediction of composite pipes
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SYSNO ASEP 0354877 Document Type O - Others R&D Document Type Others Title Damage prediction of composite pipes Author(s) Hutař, Pavel (UFM-A) RID, ORCID
Zouhar, Michal (UFM-A)
Náhlík, Luboš (UFM-A) RID, ORCID
Knésl, Zdeněk (UFM-A)Year of issue 2010 Language eng - English Country CA - Canada Keywords layered pipe ; lifetime prediction ; linear elastic fracture mechanics ; FEM Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA106/09/0279 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation This article is focused to the estimation of the residual lifetime of the multilayer polymer pipes. The main task is to asses differences in propagation of the creep crack in the multilayer (composite) pipe line in the comparison with conventional homogenous pipe. To predict residual lifetime of a multilayer pressured pipe, the stress intensity factors during the creep crack propagation has to be estimated. From the results it is visible that dangerous situation is, when crack penetrated interface between inner protective layer and main pipe, because softer outer protective layer changes stress state in front of the crack tip and significantly decrease residual lifetime of the structure Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2011
Number of the records: 1