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)...
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 : 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...
1992 Eindhoven : The Cooling Phase of Large Pipe Manufacture
Author(s) : Pittman, Whitman, Gwynn, Beech
Comprehensive operating data from a large-scale pipe cooling
lime are reported, including in-situ measurements of
temperatures within the pipe wall.
A finite element
simulation of cooling, coupled with gravity induced flow, or
slump, in the pipe wall is described. Computed temperatures
within the wall are compared...
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