Tymoshenko O. Kinetics of accumulation of damages and destruction of structural materials at elastoplastic deforming

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0407U004295

Thesis Registration Form

0407U004295.pdf

Applicant for

Specialization

  • 01.02.04 - Механіка деформівного твердого тіла

29-10-2007

Specialized Academic Board

Д 26.002.01

Publishing and Printing Institute of Igor Sikorsky Kyiv Polytechnic Institute

Essay

Dissertation is devoted to development of a method of damage estimation in metal structural materials and elements of constructions which are work at complex elastoplastic strain. It is showed, that application of the selected parameter - a specific resistance which characterizes a kinetics of damage accumulation in metal structural materials in the developed technique allows to get reliable results of definition of a boundary condition at a stage of macrocrack initiation. Dependence by definition critical damage value for metal structural materials from effect of a plastic deformation and an influence of stress state and the generalized damage surfaces for some modern structural materials are developed.

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