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JOURNALS // Prikladnaya Mekhanika i Tekhnicheskaya Fizika // Archive

Prikl. Mekh. Tekh. Fiz., 2017 Volume 58, Issue 1, Pages 189–198 (Mi pmtf759)

This article is cited in 2 papers

Kinetic physical phenomenological model of creep-rupture strength of metals

V. M. Greshnov, R. I. Shaikhutdinov, I. V. Puchkova

Ufa State Aviation Technical University, Ufa, 450000, Russia

Abstract: A kinetic model of creep-rupture strength is constructed using the physicomathematical theory of irreversible strains of metals. An algorithm for the mathematical modeling of the processes occurring during tension of specimens. Results of experimental verification of a uniaxial model of creep-rupture strength are given. It is shown that the proposed model differs from available models fact in that it contains physical structural parameters (scalar densities of dislocations and microcracks) and kinetic equations for them.

Keywords: irreversible deformation, dislocation creep, ductile fracture, structural-phenomenological approach, creep-rupture strength.

UDC: 539.376; 539.214

Received: 26.03.2015
Revised: 03.12.2015

DOI: 10.15372/PMTF20170118


 English version:
Journal of Applied Mechanics and Technical Physics, 2017, 58:1, 165–172

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