Thermoviscoelastoplastic processes in the deformation of elements of a solid (survey)
- S.P. Timoshenko Institute of Mechanics, Kiev (Ukraine)
This article surveys investigations performed at the S.P. Timoshenko Institute of Mechanics (of the Ukrainian Academy of Sciences) and Kishinev Agricultural Institute on the subject of thermoviscoelastoplastic processes that occur during the deformation of solids. Later research that was based on the above-mentioned investigations is also discussed. We will examine two methods of describing thermoviscoelastoplastic processes associated with the deformation of solids. One method of constructing the constitutive equations is based on the isotropy postulate, while the second method is founded on the structural model of a cyclically unstable medium. In both cases, it is assumed that the solid is initially isotropic and uniform, that it is in a natural unstressed state at the temperature T{sub 0}, and that it is subsequently subjected to variable nonisothermal loading. Here, we also assume that some of the elements of the body are in the plastic state, while others remain elastic. Creep may be initiated and develop within the material.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 99000
- Journal Information:
- International Applied Mechanics, Journal Name: International Applied Mechanics Journal Issue: 3 Vol. 30; ISSN IAMEEU; ISSN 1063-7095
- Country of Publication:
- United States
- Language:
- English
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