2010 Vancouver : Gas permeation in multi-layered composite pipe for high pressure pipelines
Author(s) : Mel Kanninen, Kyle Bethel and Aron Ekelund
It is well known that gas permeation in thermoplastic pipe is proportional to pressure. Accordingly,
quantitative consideration must be given to this phenomenon to properly design and operate
reinforced thermoplastic composite pipe (RTCP) in high pressure applications. In this paper a
permeation predictive model based...
2010 Vancouver : Utilization of Notched Ring Test for larger diameter pipes and fittings
Author(s) : Sooho Pyo, Junghyun Nam, Yoonsang Kim and Sunwoong Choi
The Notched Ring Test (NRT) has been recently developed to measure slow crack growth (SCG) in plastics pipes and fittings. The NRT specimen in the form of a notched full ring is directly obtained from the extruded pipe or injection molded fitting and has demonstrated its effectiveness in generating slow crack growth...
2004 Milan : Environment Factors in Performance Forecasting of Plastic Piping Materials
Author(s) : Chung, Couch, Kim, Vibien, Oliphant
Environmental factors are known to significantly impact the oxidative failure mechanism of
materials. For example, the chlorine present in potable water as a disinfectant is an oxidant
that has been reported to impact the failure mechanism of materials in potable water
applications. In this paper, the relationship...
1995 Edinburgh : Experimental validation of an advanced computer model for electrofusion
Author(s) : Grigory, O'Donoghue, Mamoun
Measurements of temperature,
power input, and pressure of the molten PE at
the pipe-coupling interface in 4-, 6-, and 8-inch
(1 14-, 168- and 219-rnm)' electrofusion (EF)
couplings were made using instrumented
experiments during the fusion cycle. The high
temperature properties of several medium and
1992 Eindhoven : A Theoretical and Experimental Evaluation
Author(s) : Kanninen, Buczala, Kuhlman, Green, Grigory, O'Donoghue, McCarth
Most current procedures for the design, installation and qualification of
electrofused jointsin polyethylene gas piping systems are empirical in nature.
To improve this situation, the Gas Research Institute initiated an integrated
experimental and analysis research program at the Southwest Research
1992 Eindhoven : Procedures to Prevent Rapid Crack Propagation in PE Gas Pipes
Author(s) : Kanninen, Leung, O'Donoghue
This paper outlines a theoretical approach developed to quantify
the conditions for a long-running crack in PE gas distribution pipes.
Comparisons with a full-scale experiment on a 250 mm diameter
SDR 17.6 MDPE pipe are made to demonstrate the validity of the
model. The present status of a user-oriented procedure to...