Laboratory Investigation of the Leakage Characteristics of Unburied HDPE Pipes

Latchoomun, L., King, R.T.F. Ah, Busawon, Krishna, Mawooa, Deoduth and Kaully, R.G. (2015) Laboratory Investigation of the Leakage Characteristics of Unburied HDPE Pipes. Procedia Engineering, 119. pp. 91-100. ISSN 1877-7058

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Official URL: http://dx.doi.org/10.1016/j.proeng.2015.08.858

Abstract

In this research work, the leakage characteristics of the viscoelastic material HDPE is investigated and compared to other materials like uPVC which is elastic and galvanised steel which is rigid in nature. Under no axial loading, the deformation in HDPE pipe wall causes the leak aperture to close up under increasing pressure head. As a consequence, the leakage exponent decreases from around 1 to 0.5 with increase in both longitudinal and circumferential crack lengths whereas for uPVC and steel, the leakage exponent increases under similar conditions. Consequently, the increase in discharge rate for increasing pressure in HDPE gets smaller.

Item Type: Article
Uncontrolled Keywords: Viscoelasticity; High Density Polyethylene (HDPE); Fixed and Variable Area Discharges (FAVAD)
Subjects: F200 Materials Science
Department: Faculties > Engineering and Environment > Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 22 Sep 2015 10:30
Last Modified: 11 May 2017 00:40
URI: http://nrl.northumbria.ac.uk/id/eprint/23868

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