NEWS
PVC pipe failure addressed at Pipes in Infrastructure conference
PVC pipe failure is just one of the topics covered in AMI’s forthcoming Plastic Pipes in Infrastruc- ture conference. Researchers at CEIS in Spain, for instance, have studied the influence of gelation on longitudinal cracks in large PVC pressure pipe. Longitudinal crack failure in PVC pipes – for use in irrigation projects – has become a problem in Spain recently, according to Joachín Lahoz Castillo, senior pipe researcher at CIES, who will present a paper on the topic. The study, which includes three case studies, delves into the question of whether the cracks are caused mainly by the application they are used in, or whether it is down to pipe quality issues. In each example, pipe samples – which had each experi- enced longitudinal cracks – were tested by methods including microscopic analysis and dimensional analysis, in order to determine the reasons behind the failure.
https://www.ami.international/events/event?Code=C885
Trends in the design, production, installation and exploitation of plastic pipes systems
17-18 April 2018 Hilton Kensington, London, United Kingdom
The paper also investigates whether tests such as DCM or DSC were most appropriate for investigating the underlying cause of failure.
In a later session, Lucien Laiarinandrasana
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– senior researcher at Mines Paristech in France – addresses the effects of ageing and water hammer on PVC pipe failure. The paper includes details on materials selection, the tests used to determine failure – on both failed and intact pipes – as well as test results. The work included the use of finite element
analysis (FEA) to model crack initiation. The study reveals the effect of water hammer on the
pressure safety margin, as well as suggesting future areas of research. The conference is held in London on 17 and 18 April.
https://www.ami.international/events/event?Code=C885
For more details, contact Sophie Harrisson on +44 (0) 117 314 8111, or email:
sophie.harrisson@ami.international.
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18_C0885_Conf_UK_Wb
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