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Journal of Applied Mechanics and Technical Physics

2020 year, number 4

Elastoplastic Tension Problem for a Plate with a Circular Hole with Account for Crack Nucleation in an Elastic Deformation Region

V. M. Mirsalimov
Azerbaijan Technical University, Baku, AZ1073, Azerbaijan
Keywords: тонкая пластина, упругопластическая задача, граница раздела упругих и пластических деформаций, зона предразрушения, зарождение трещины, thin plate, elastoplastic problem, interface between elastic and plastic deformations, pre-fracture zone, crack nucleation

Abstract

A plane elastoplastic problem related to stress distribution in a thin plate with a circular hole is considered with account for nucleation and development of cracks in an elastic region. It is assumed that the circular hole is located in the plastic deformation region. It is considered that loading is accompanied by crack nucleation and the fracture of the plate material in the elastic deformation region of the plate. The problem is solved using the perturbation theory and the theory of singular integral equations.