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INVESTIGATION OF THE LONGEVITY OF MATERIALS ON THE BASIS OF THE KINETIC CONCEPT OF FRACTURE

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Journal of Applied Mechanics and Technical Physics Aims and scope

Abstract

Experimental data on the failure and deformation of various materials are considered from the viewpoint of the kinetic concept of fracture as thermodynamic processes occurring over time. Mathematical modeling of the general and local plastic flows in materials is based on rheological models of a solid with due allowance for damage accumulation. The prediction of the longevity of materials under constant or variable temperature and force conditions is performed by time steps, including situations with changes in the material structure. A single fracture criterion is used, which implies that fracture occurs after reaching a threshold damage concentration (concentration criterion) in a certain volume of the solid body.

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Authors and Affiliations

  1. Siberian Aeronautical Research Institute Named after S. A. Chaplygin, 630051, Novosibirsk, Russia

    M. G. Petrov

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  1. M. G. Petrov
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Correspondence to M. G. Petrov.

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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, 2021, Vol. 62, No. 1, pp. 165–178.https://doi.org/10.15372/PMTF20210118.

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Petrov, M.G. INVESTIGATION OF THE LONGEVITY OF MATERIALS ON THE BASIS OF THE KINETIC CONCEPT OF FRACTURE. J Appl Mech Tech Phy 62, 145–156 (2021). https://doi.org/10.1134/S0021894421010181

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  • DOI: https://doi.org/10.1134/S0021894421010181

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