Fundamental Mechanisms of Failure in Polyethylene Gas Pipes. Final Report,January 1, 1992-December 31, 1995

摘要

The reseach objectives were: to provide a fundamental understanding of theprimary long term failure process which occurs in gas pipe systems, notably slow crack growth (SCG)s; to develop methods for the accelerated testing of the resistance of polyethylene piping systems to SCG; to obtain experimental results on current materials being used or considered for use by the gas industry; and to measure the effects on SCG of processing variables in the production of pipe and fittings and compositional variables in the production of resin.