Effecting of Modified HDPE Composition on the Stress-Strain State of Constructions

International Multi-Conference on Industrial Engineering and Modern technologies

Litvinov, S.V.^1 ; Yazyev, B.M.^1 ; Turko, M.S.^1

Department Strength of Materials, Don State Technical University, Rostov-on-Don

344022, Russia^1

关键词: Creep deformations;    Cylindrical shapes;    High density polyethylene(HDPE);    Material compositions;    Physico mechanical parameters;    Principal stress;    Stress strain state;    Structural elements;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/463/4/042063/pdf
DOI  :  10.1088/1757-899X/463/4/042063

来源: IOP

【 摘 要 】

The physico-mechanical parameters of one class of polymers can be considerably variated depending on different conditions: temperature, the injection of additives, irradiation of the material, etc. First of all, this affects the stress-strain state of structures made of these materials. And especially the development of highly elastic deformations in the form of creep deformations developing in time. As an example, the article considers a structural element of a cylindrical shape, made of high-density polyethylene (HDPE). It is defined and shows the change in the stress-strain state at the time of various material compositions. It is also presented that the change in the principal stresses is more pronounced than the base stresses (radial, circumferential and axial).