MATHEMATICAL MODELING OF DAMAGE OF A CYLINDRICALLY ISOTROPIC THICK PIPE UNDER A COMPLEX STRESS STATE

Mustafayeva E., Karimova N., Rahimova K., Novruzova U., Ismayilzade M., Alirzayeva L.

Global and Stochastic Analysis, vol.9, no.1, pp.47-55, 2022 (Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 9 Issue: 1
  • Publication Date: 2022
  • Journal Name: Global and Stochastic Analysis
  • Journal Indexes: Scopus
  • Page Numbers: pp.47-55
  • Keywords: damage volume, damageability, destruction front, fracture, fracture front, stress intensity, strongly affects
  • Azerbaijan State University of Economics (UNEC) Affiliated: Yes

Abstract

The paper investigates the process of scattered destruction of a thick pipe with uniform pressure on the inner boundary of the pipe. The process of fracture of a cylindrically isotropic pipe under the action of internal pressure, assuming that the pipe material behind the fracture front completely loses its bearing capacity and the acting external pressure is transferred to a new boundary surface, which is a moving fracture front. The process of damaging is described by the kinetic equation. The problem was solved taking into account the residual strength of the pipe material behind the fracture front. The problem was solved taking into account the residual strength of the pipe material behind the fracture front.