Analysis of Fracture Behaviour of Multilayer Pipes
1.
SYSNO ASEP
0090871
Document Type
J - Journal Article
R&D Document Type
Journal Article
Subsidiary J
Ostatní články
Title
Analysis of Fracture Behaviour of Multilayer Pipes
Title
Analýza lomového chování vícevrstvých trubek
Author(s)
Nezbedová, E. (CZ) Knésl, Zdeněk (UFM-A) Vlach, B. (CZ)
Source Title
Plastics Rubber and Composites
- ISSN 1465-8011
Roč. 36, č. 5 (2007), s. 207-212
Number of pages
6 s.
Action
Plastic Pipes /13./
Event date
02.10.2006-05.10.2006
VEvent location
Washington, D. C.
Country
US - United States
Event type
WRD
Language
eng - English
Country
GB - United Kingdom
Keywords
multi-layer pipes
Subject RIV
JL - Materials Fatigue, Friction Mechanics
R&D Projects
GA106/07/1284 GA ČR - Czech Science Foundation (CSF)
CEZ
AV0Z20410507 - UFM-A (2005-2011)
Annotation
Two-layer pipes made of PE 100 and PPH were chosen for the present study. The PPH pipe provided a protective layer for the PE 100 pipe. The relevant numerical model based on the finite element method (FEM) was used to calculate the stress distribution in the pipe and the corresponding fracture mechanics parameters were estimated. Two crack configurations (inside and outside cracks) were analysed numerically. The influence of the Young modulus of both components on possible crack propagation is discussed. From the experimental point of view, the compact tension (CT), single edge notch bending (SENB) and C shaped (C) specimens taken from the pipe were tested under a static load and at different temperatures. As a fracture parameter the J – integral characteristic and its dependence on stable crack growth, the crack orientation and temperature were chosen. A correlation between the experimental and theoretical results was found.
