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Two-layer pipe - the influence of materials interface on creep crack behaviour
Zouhar, Michal ; Hutař, Pavel ; Náhlík, Luboš
Nowadays the using of layered structures is increasing. The aim of this article is study the influence of material interface of two layer pipe with inner crack on the crack behaviour. The numerical model of two layer pipe was created and the creep crack growth was modelled (taking into account realistic crack shape evolution). The results of two layer pipe were compared with homogenous approximation and accuracy of the lifetime prediction was discussed.

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