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Vliv bodového zatížení na tvar trhliny v tlakové polymerní trubce

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    0353456 - ÚFM 2011 RIV CZ cze K - Conference Paper (Czech conference)
    Ševčík, Martin - Hutař, Pavel - Náhlík, Luboš - Pinter, G. - Frank, A.
    Vliv bodového zatížení na tvar trhliny v tlakové polymerní trubce.
    [Influence of point load on crack shape in polymeric pipe.]
    Víceúrovňový design pokrokových materiálů - 2010. Sborník doktorké konference. Brno: ÚFM AVČR v.v.i, 2010 - (Dlouhý, I.; Švejcar, J.; Šob, M.), s. 115-122. ISBN 978-80-87434-02-4.
    [Víceúrovňový design pokrokových materiálů 2010. Brno (CZ), 02.12.2010]
    R&D Projects: GA ČR GA106/09/0279; GA ČR GC101/09/J027; GA ČR GD106/09/H035
    Institutional research plan: CEZ:AV0Z20410507
    Keywords : pipe line * crack * point loading * FEM * stress intensity factor
    Subject RIV: JL - Materials Fatigue, Friction Mechanics

    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.
    Permanent Link: http://hdl.handle.net/11104/0192702

     
     
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