Experimental Study on Mechanical Properties of Polyethylene HDPE in Conditions of Hydraulic Impact Simulation

Szymon Imiełowski , Apoloniusz Kodura , Aniela Maria Glinicka , Cezary Witold Ajdukiewicz

Abstract

Experimental research on mechanical properties of hardened polyethylene HDPE, is developed in the paper. The conditions of hydraulic impact simulation, caused by sudden opening or closing of the valve or by working pomp were adopted in the model. The created in such conditions shock wave moves at a high speed causing additional dangerous dynamic loadings, which lead to faster pipe wear process. The aim of this study is to determine Young's modulus of the pipe material in the cyclic load conditions. The assumed amplitude and frequency of the applied load relates to variation of the impact wave pressure also the speed of the disturbances propagation are taken from experimental measurement of the real water hammer. The measured Young's modulus is higher than that obtained from a static tensile test. The presented study arises from the need to verify the actual value of pipe material mechanical properties, i.e. longitudinal stiffness, for designing of hydraulic pipes under conditions of water hammer.
Author Szymon Imiełowski ZBWH
Szymon Imiełowski,,
- Department of Hydraulic Engineering and Hydraulics
, Apoloniusz Kodura ZBWH
Apoloniusz Kodura,,
- Department of Hydraulic Engineering and Hydraulics
, Aniela Maria Glinicka IIB
Aniela Maria Glinicka,,
- The Institute of Civil Engineering
, Cezary Witold Ajdukiewicz IIB
Cezary Witold Ajdukiewicz,,
- The Institute of Civil Engineering
Pages149-154
Publication size in sheets0.5
Book Pyrzanowski Paweł, Gadomski Jacek (eds.): 26th Symposium on Experimental Mechanics of Solids. Selected, peer reviewed papers from the 26th Symposium, Solid State Phenomena, vol. 240, 2016, Tran Tech Publications Ltd, ISBN 978-3-03835-568-7, 270 p.
Keywords in English Cyclic Load, Experimental Determination of Young’s Modulus, HDPE Modulus of Elasticity, Hydraulic Impact, Water Hammer
DOIDOI:10.4028/www.scientific.net/SSP.240.149
Languageen angielski
Score (nominal)0
Citation count*4 (2018-06-21)
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