2021 Amsterdam : DEVELOPMENTS IN NORTH AMERICAN CONDUIT PRACTICES
Author(s) : Tom Stewart, Richard Hicks, Patrick Vibien, Lance MacNevin
Arguably, broadband technologies have become as vital to society as water delivery, waste removal
and energy distribution. However, the role of plastic conduit in broadband is often overlooked within
the piping industry and society in general. HDPE conduit is an essential component to the build -out of
2021 Amsterdam : MODIFIED PLAIN STRAIN GROOVED TENSILE TEST TO EVALUATE LARGE DIAMETER PE PIPES
Author(s) : Thomas R. Kratochvilla, Patrick Grünbeck, Christoph Bruckner, Raimund Eremiasch, Harald Wilhelm, Mario Vukelja
In the last decades pipe dimensions of extruded PE pipes have reached new orders
of size. Today, PE pipes with outer diameters of up to DN/OD 3500 mm are produced
and used for pressure pipe applications like seawater intake/discharge, outfall, sewage
and industrial process piping systems.
To test the long-term...
2014 Chicago : An Assessment of the Approach to Validate Polyethylene Pipe in Potable Water Systems
Author(s) : Dr. Ken Oliphant, Patrick Vibien, Dr. Michael Conrad, Sarah Chung
A new methodology has been developed to validate the performance of polyethylene piping materials in potable water applications. The methodology is based on several research programs which examined a standardized accelerated test methodology (ASTM F2263 Standard Test Method for Evaluating the Oxidative Resistance of...
2006 Washington DC : Rapid Crack Propagation in Loosely Fitted PE Liner Pipe
Author(s) : Leevers, Henderson, Pereira
Laboratory-scale S4 tests have been used to determine whether it would be possible, at any
realistic working pressure, for a loosely-fitted PE liner within a rigid host pipe to fail by
Rapid Crack Propagation (RCP). The standard ISO 13477 S4 method was modified by
replacement of the containment ring cage by a rigid,...
2006 Washington DC : S4 Critical Pressure and Critical Temperature
Author(s) : Maeger, Vanspeybroeck, Lamborn, Mamoun, Leevers, Oliphant
As polyethylene pressure pipes enter the global marketplace under an ever-wider range of
operating conditions, there is increasing emphasis on their rapid crack propagation
performance. It is important that both producers and end-users are able to rely on the
robustness of the rapid crack propagation test results and...
2001 Munich : Fully Predictive Model of RCP in Plastics Pipes
Author(s) : Ivankovic, Tropsa, Jasak, Leevers
This work presents a 3D coupled solid-fluid model for predicting fast failures in pressurised
plastic pipes. It is developed within a unified computational procedure where both solid
pipe and pressurising media are discretised using the Finite Volume method. The coupling
is achieved across the pipe-fluid interface...
2001 Munich : The Ductile-Brittle Transition in Pipe-Grade PE
Author(s) : Leevers, Moreno, Paizis
The resistance of PE pipes to rapid crack propagation depends strongly on temperature.
The critical pressure measured using ISO 13477 ‘S4’ tests increases abruptly above a
transition temperature Tc. For PE100 grades Tc has become a primary index of quality : it
must remain below 0°C despite a tendency to increase...