Plastic Pipes Conference Association # 1992 Eindhoven
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 of oriented specimen and the stress crack performance of the material. The existence of such a correlation paves the way to simpler and faster testing routines and to a better understanding of the factor controlling stress-crack performance.
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