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PE100+ Association

Truly international membership currently comprising 13 member companies: Borealis, Borouge, FPC, INEOS O&P, IRPC, Korea Petrochemical IND. Co., LTD, lyondellBasell, PetroChina Dushanzi Petrochemical Company, Prime Polymer, SABIC, SCG & Thai Polyethylene, Sinopec, and Tasnee.

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The HDPE Pipe Model, developed by the PE100+ Association with inputs from many industry experts, includes the most frequently asked questions and answers (Q&A's) of all the elements through the pipe system value chain: design, materials, construction, operation & maintenance, and environmental issues.

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Characterising Toughness for Pipe Grad Materials

Williams

Fracture # 1995 Edinburgh

A review of the Fracture Mechanics methodology for characterising toughness is given. It is shown that the fracture resistance R is derived by computing an energy difference. It is noted that R is dependent on the constraint in the crack tip region and that this leads to the very complex behaviour observed in Charpy tests. The different types of fracture observed in this test are then discussed and the consequences for pipe performance described. It is concluded that the high toughness occurring under plane stress conditions is critical in determining performance.

Please note that the whole article content is available on PPCA website only

Author(s) : Bruce Mowry, PhD, P.E., Brian Dorwart, P.G., P.E., David Mancini, Bryan Fletcher, Roger Williams, P.E., Rene Brito, EIT, Arnelio Alfonso, P.E .

The City of Miami Beach owns and operates a 54-inch sanitary sewage PCCP force main (FM) that was built in 1977. This FM is the only transmission pipeline for conveying about 22 million gallons per day (MGD) of raw sewage to the wastewater treatment plant. In 2012, the City identified structural deficiencies in the...

2004 Milan : Damage evolution and failure mechanisms in polyethylene

Author(s) : SKM Ting, JG Williams and A Ivankovic

Recent experimental data (Ting et al (1-2) and Ting (3)) has shown that the onset and subsequent evolution of the damage (craze) was found to be sensitive to constraint effects, in addition to rates. In particular, the effect of notch depth was found to exert a greater influence on the material response than through...

1974 Southampton : The Analysis of practical failures of plastic pipelines

Author(s) : Marshall, Williams

During the last ten years, it has often been predicted that plastics will be used in increasing quantities as true engineering materials, Whilst there has been an increased acceptance of GRP as a positive alternative to metals in many applications, the use of thermoplastics for major load bearing structures has been...