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1 Journal of Applied Mathematics and Computational Mechanics

1 2021

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Application of computational mechanics approaches for increasing of tribosystem operational parameters by using plasma hardening method

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Kopylov V. , Kuzin O. , Kuzin N.

Journal of Applied Mathematics and Computational Mechanics

2021

tom Vol. 20, nr 1

61--70

On the basis of the mathematical model of the continual description of functionalgradient metal systems, taking into account their structure, a computational computer scheme has been developed that makes it possible to assess the stress-strain state of local volumes of parts taking into account their spatial inhomogeneity. With the use of modern software components of computational mechanics - FEniCS finite element analysis package and its implementation in Python, the optimal structural characteristics of wheelsets of railway locomotive tires after plasma treatment have been established. It is shown that, depending on the value of the load, hardening of products must be carried out to a depth of 4.5 mm; with a further increase in thickness, the parameters of operational strength do not change.