Related papers
2001 Munich : Mechanisms of Slow Crack Growth in PE Pipe GradesAuthor(s) : Beech, Ferguson, Clutton
Design of pipe systems for 50 year lifetimes depends on accelerated testing of pipe at
different temperatures and standard extrapolation methods for assessment of whether the
minimum required strength is achieved. Further acceleration is used in the notched pipe
test (NPT), which is a medium term (up to 1000 hour)...
1998 Gothenburg : Slow Crack Growth and Impact Mechanisms in PEAuthor(s) : Clutton, Rose, Capaccio
The development of pipe grades requires the careful balance of several mechanical properties, of which two of the most important are the resistance to slow crack growth (SCG) and rapid crack propagation (RCP). In this paper, we present small-scale tests which enable the rapid assessment of these properties. These...
1995 Edinburgh : Prediction of Notched Pipe Stress Crack PerformanceAuthor(s) : Rose, Channell, Palmer
A series of PE 80 and PE 100 materials have been investigated to determine
whether there exists a link between resistance to slow crack growth as
measured by notched pipe test and creep of macroscopic oriented samples.
Preliminary results suggests that there is a correlation between a single
creep parameter and...
1992 Eindhoven : Fibre Creep and Long-Term Fracture Resistance in PEAuthor(s) : Channell, Cawood, Capaccio
A critical appraisal has been carried out of the creep
fracture of the fibrils in the pre-crack damage zone
(craze) of polyethylene homo and copolymers. It has been
shown that by assuming that the fibrils are drawn to the
natural draw ratio of the material, a clear correlation
can be established between the creep rate...