Fracture toughness of multilayer pipes |
| |
| Authors: | E Nezbedová L Fiedler Z Majer B Vlach Z Knésl |
| |
| Affiliation: | (1) Faculty of Chemistry, Institute of Materials Science, Brno University of Technology, Brno, Czech Republic;(2) Faculty of Mechanical Engineering, Brno Technical University, Brno, Czech Republic;(3) Institute of Physics of Materials, Academy of Science of the Czech Republic, Brno, Czech Republic |
| |
| Abstract: | Multilayer pipes composed of various materials improve partially the properties of a pipe system and are frequently used in
service. To estimate the lifetime of these pipes the basic fracture parameters have to be measured. In the contribution a
new approach to this estimation is presented. Special type of a C-shaped inhomogeneous fracture mechanics specimen machined
directly from a pipe has been proposed, numerically analyzed and tested. The corresponding K values are calculated by finite-element
method and fracture toughness values of polyethylene pipes material are obtained.
__________
Translated from Problemy Prochnosti, No. 1, pp. 146–149, January–February, 2008. |
| |
| Keywords: | polyethylene pipes fracture toughness K-calibration |
| 本文献已被 SpringerLink 等数据库收录！ |
|
