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- Article name
- Refined model of non-isothermal elastoviscoplastic dynamic bending deformation of reinforced plates
- Authors
- YANKOVSKII A. P., , lab4nemir@rambler.ru; yankovsky_ap@rambler.ru, Khristianovich Institute of Theoretical and Applied Mechanics the SB RAS, Novosibirsk, Russia
- Keywords
- flexible plates / multidirectional reinforcement / thermoelastic-viscoplasticity / coupled thermomechanical problem / dynamic deformation / refined bending theory / explicit numerical scheme
- Year
- 2024 Issue 3 Pages 5 - 17
- Code EDN
- JAZPWM
- Code DOI
- 10.52190/2073-2562_2024_3_5
- Abstract
- The dynamic problem of thermoelastic-viscoplastic deformation of reinforced plates is formulated within the framework of a refined theory of bending. The formulated nonlinear coupled thermomechanical problem is numerically integrated using an explicit scheme. It is shown that to adequately calculate the deformed state of the components of the composition, it is necessary to use the refined bending theory, and not the traditional non-classical Ambartsumyan theory. In this case, it is advisable to take into account the thermal response that occurs in dynamically bent reinforced plates, and it is necessary to take into account the dependence of the plastic properties of the composition materials on the rate of their deformation. In relatively thick fiberglass plates, replacing the flat-cross reinforcement structure with a spatial structure can significantly reduce the level of deformation of the epoxy binder in such structures. This effect does not appear in metal-composite plates.
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