Effect of time-dependent material properties on the crack behavior in the interface of two polymeric materials

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Effect of time-dependent material properties on the crack behavior in the interface of two polymeric materials

Popis výsledku v původním jazyce

Crack penetration through the bimaterial interface of two polymers is investigated numerically. Due to the practical importance of the problem, a crack in a three-layer pipe consisting of a main and two, inner and outer, protective layers is analyzed inthis paper. The prime aim is to formulate the conditions under which the crack stays arrested at the interface between the protective layer and the main pipe or penetrates into the interface and causes failure of the main pipe and consequently of the entire pipe system. The crack tip stress field is described by using a generalized stress intensity factor for cases where the crack touches the interface and the stress singularity exponent differs from 1/2. The results presented here may contribute to a more accurate estimation of the residual lifetime of multilayer pipes.

Název v anglickém jazyce

Effect of time-dependent material properties on the crack behavior in the interface of two polymeric materials

Popis výsledku anglicky

Crack penetration through the bimaterial interface of two polymers is investigated numerically. Due to the practical importance of the problem, a crack in a three-layer pipe consisting of a main and two, inner and outer, protective layers is analyzed inthis paper. The prime aim is to formulate the conditions under which the crack stays arrested at the interface between the protective layer and the main pipe or penetrates into the interface and causes failure of the main pipe and consequently of the entire pipe system. The crack tip stress field is described by using a generalized stress intensity factor for cases where the crack touches the interface and the stress singularity exponent differs from 1/2. The results presented here may contribute to a more accurate estimation of the residual lifetime of multilayer pipes.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Mechanics of Composite Materials

ISSN

0191-5665

e-ISSN

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Svazek periodika

47

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

LV - Lotyšská republika

Počet stran výsledku

8

Strana od-do

203-210

Kód UT WoS článku

000291953300006

EID výsledku v databázi Scopus

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