Experimental Study on Mechanical Properties of Polyethylene HDPE in Conditions of Hydraulic Impact Simulation
Szymon Imiełowski , Apoloniusz Kodura , Aniela Maria Glinicka , Cezary Witold Ajdukiewicz
AbstractExperimental 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.
|Publication size in sheets||0.5|
|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|
|Citation count*||4 (2018-06-21)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.