An examination is made of the analogy between the curve of pressure change with time in hydraulic tests of polyethylene tubes to failure and the load–deformation curve, obtained in simple elongation tests. The possibility of determining the main parameters of deformation under simple elongation from the data of hydraulic tests is shown.
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References
1.
KolbayaV.G., Analysis of the zone of plastic failure of polymer tubes. Plast. Massy, (11–12): 38–40 (2014).
2.
GOST ISO 1167-1-2013 Tubes, couplings, and joint assemblies manufactured from thermoplastics for the conveyance of liquid and gaseous media. Determination of resistance to internal pressure. Part 1. General method.
3.
GOST R 53652.1-2009 Tubes manufactured from thermoplastics. Method for determining the tensile properties. Part 1. General requirements.
