Nauka innov. 2015, 11(5):25-36 
https://doi.org/10.15407/scin11.05.025

Yu.N. Shevchenko1, N.F. Andrushko1, M.Ye. Babeshko1, M.V. Banias1, A.Z. Galishin1, P.G. Dehtyarenko2, V.G. Savchenko1, A.M. Tonkonogenko2, N.N. Tormakhov1
1S.P. Timoshenko Institute of Mechanics, NAS of Ukraine, Kyiv
2SE «Design Office "Pivdenne"», Dnipropetrovsk 

 

Procedure of Forecasting Operational and Extremal State of Critical Systems of the Rocket Technique Under Repeated Thermo-Force Loading

Section: Scientific and Technical Innovative Projects of National Academy of Sciences of Ukraine
Language: Ukrainian
Abstract: The mathematical model for investigation of the thermoelastoplastic stress-strain state and the strength of the rocket technique systems under the repeated starting is proposed. The thermal conductivity equation and constitutive equations of thermoplasticity for the repeated elastic-plastic deformation processes of isotropic materials along small-curvature paths, the strength and low-cyclic fatigue criteria, numerical methods for solving the boundary-value heat conduction problems and corresponding computer software are used.
Keywords: mathematical model, construction element, thermo-elastic-plastic deformation process, repeated loading, strength criteria, low-cyclic fatigue criteria.

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