Justification of indirect methods of bending stresses polyethylene pipes evaluation

Innovations and Prospects of Development of Mining Machinery and Electrical Engineering

矿业工程;电工学

Serebrennikov, A.A.^1 ; Serebrennikov, D.A.^1 ; Hakimov, Z.R.^1

Industrial University of Tyumen, 38, Volodarskogo Av., Tyumen

625000, Russia^1

关键词: Bending stress;    Indirect methods;    Mechanical characteristics;    Polyethylene pipelines;    Polyethylene pipes;    Production technology;    Reliability and durabilities;    Strength characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/87/8/082044/pdf
DOI  :  10.1088/1755-1315/87/8/082044

来源: IOP

【 摘 要 】

The world and Russian companies have a long experience of the polyethylene pipeline installation and operation. At the same time, the significant attention is paid to the improvement of the relevant machines and the production technology. The polyethylene pipeline installation experience proves that its operation properties (reliability and durability) depend on physical and mechanical characteristics of polyethylene, which should be saved during its installation. Defects can occur, including in cases when the pipe is subjected to the significant bending stresses during installation. To evaluate these stresses, including when exposed to cold weather conditions, an indirect method based on the relationship between strength characteristics and occurred deformations is proposed.