Damage prediction of composite pipes

Result code in IS VaVaI

RIV/68081723:_____/10:00354877 - isvavai.cz

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Damage prediction of composite pipes

Original language description

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

Czech name

—

Czech description

—

Type

O - Miscellaneous

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

—

Project

GA106/09/0279: Fracture damage mechanism of multilayer polymer body

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

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