2001 Munich : Mechanisms of Slow Crack Growth in PE Pipe Grades
Author(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)...
2001 Munich : PE Pipeline Systems - The Big Success Story
Author(s) : Beech, Ducan, Millar
Polyethylene has been used for pipeline applications for nearly 50 years now. It has become
the prime material choice for gas and water distribution systems and many other applications
worldwide. This paper reviews the growth in the market for polyethylene pipe products for
both pressure and non pressure applications...
1998 Gothenburg : Key Properties of Plastics for Installation and Service
Author(s) : Beech
Pressure pipeline systems are a critical application for materials and demand high
levels of performance and reliability.
It is not by chance that plastics pipeline
systems have gained a considerable market share, particularly in the gas and water
utilities supply system. This paper briefly reviews the key properties...
1995 Edinburgh : Microstructural Characterisation of Polyethylenes for Pipe Application
Author(s) : Isaac, Eccott, Perridge, Pittman
A detailed investigation has
been carried out on the microstructure
of various polyethylenes recently
developed for applications in the pipe
industry. Of particular interest have
been the PElOO formulations, and
samples of these have been studied
both from commercial piping and from
laboratory produced plaques....
1995 Edinburgh : The Resistance of PE Water Pipeline Systems to Surge Pressure
Author(s) : Beech, Headford, Hunt, Sandilands
The guldeUnes g h n in BS CP 312 :Pwt 2 : 1973 w e recommended to the UK toater
industryfor the deslgn of polyethylene pfpeline systems to toke inin account the
effects of tmnsient [surge) pressurejluctuatlons with respect to fatigue (ref.1). These
guIdelInes we based on earlier experience wlth PVC-Usewer h i n g...
1995 Edinburgh : Transfer Coefficients in Spray Cooling of Plastics Pipes
Author(s) : Pittman, Farah
Heat transfer coefficients for splay cooling in the
manufacture of blue, yellow and black PE-80 and PE100 MDPE pipes are determined by measuring pipe
surface tempemhtres in the annealing zones between
splay tanks, and then fitting a computer simulation of
the cooling process by adjustment of heat wander
1988 Bath : Characterisation of Blue MDPE Water Pipe
Author(s) : Mallison, Gwynn
BP Chemicals International together with Stewarts and Lloyds Plastics have provided Rigidex PC 002-50 R968 pipes for the WRC project studying rapid fracture, fatigue and ageing characteristics of MDPE.The production and characterisation of the pipes and compound are discussed. In particular the residual stress,...
1988 Bath : Residual Stress in Large Diameter MDPE Water Pipe
Author(s) : Beech, Burley, Bunn
Production of plastics pipes by conventional
extrusion results in 'frozen i n r stress in the
pipe wall, termed residual stress.
have been established for assessina
the levels of
this stress and relating to extrusion coaling
conditions by mathematical modelling.
the effects on long term...
Harmonisation of PE Pipe Buttfusion Procedures and Test Methods
Author(s) : Beech, Hutten, Ritz