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Life time estimation of the multilayer plastic pipes
- 1.0353970 - ÚFM 2011 RIV CH eng J - Journal Article
Zouhar, Michal - Vallet, L. - Hutař, Pavel - Náhlík, Luboš
Life time estimation of the multilayer plastic pipes.
Key Engineering Materials. 452-543, - (2011), s. 33-36. ISSN 1662-9795
R&D Projects: GA ČR GA106/09/0279; GA ČR GC101/09/J027
Institutional research plan: CEZ:AV0Z20410507
Keywords : polymer pipes * high density polyethylene * slow crack growth * fracture parameters
Subject RIV: JL - Materials Fatigue, Friction Mechanics
In the contribution solution of special fracture mechanics problems connected with multilayer plastic pipes was investigated. The assumptions of linear elastic fracture mechanics were accepted. A complex three-dimensional numerical model of multi-layer pipe system consisting of main (functional) pipe and protective layers has been suggested and numerically solved by finite element method. Two basic problems connected with lifetime expectation of multilayer pipe system have been considered and discussed, namely: question of fracture mechanics description of multilayered pipe system and corresponding measurements of the material properties. The suggested approach can help for more accurate estimation of the multilayer pipe damage.
Permanent Link: http://hdl.handle.net/11104/0193070
Number of the records: 1