Fatigue damage accumulation of details in cars according to criterion of specific energy of total strain

Authors

  • A. Ya. Kulichenko Dep. "Rolling Stock and Track", Lviv branch office of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Ukraine
  • N. O. Kuzin Dep. "Rolling Stock and Track", Lviv branch office of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan, Ukraine
  • L. I. Vakulenko Prydneprovskaya Railway, Ukraine

DOI:

https://doi.org/10.15802/stp2013/16583

Keywords:

cycle, deformation, damage, fatigue, energy

Abstract

Purpose. Modern ideas about the accumulation of fatigue damages in the details of railway vehicles are based on models that estimate the durability of metal systems and depend on the number of cycles and the magnitude of deformations or stresses. These models allow one to assess with a sufficient degree of adequacy the weakening of metal systems in polycyclic fatigue and at the presence of the elastic strain only in the details of rolling stock. However, the possibility of plastic deformation appearing during operation of rail transport structures is not taken into account. The aim of this work is a construction of a mathematical model that allows estimating the durability of metal systems with regard to the appearing of the plastic component in the process of deformation of parts of railway vehicles. Methodology. With the use of modern methods of solid mechanics the influence of the parameters of plastic deformation on the durability of highly loaded structural elements was analyzed. Findings. The effect of elastic and plastic deformation on the energy dissipation under cyclic loading was studied. Originality. It was shown analytically that the softening parameters of metal systems are related to the total energy of deformation, which characterizes features of the degradation processes in the metal structures under external loads. Practical value. Ratios were proposed, they allow estimating residual life of details in a sequential multilevel cyclic loading.

Author Biographies

A. Ya. Kulichenko, Dep. "Rolling Stock and Track", Lviv branch office of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan

I. Blazhkevych Str., 12 a, 79052, Lviv, Ukraine, tel. +38 (093) 741 51 27, e-mail kulan47@mail.ru

N. O. Kuzin, Dep. "Rolling Stock and Track", Lviv branch office of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan

I. Blazhkevych Str., 12 a, 79052, Lviv, Ukraine, tel. +38 (050) 170 28 18, e-mail n_kuzin@mail.ru

L. I. Vakulenko, Prydneprovskaya Railway

Karl Marx Av., 108, 49600, Dnipropetrovsk, Ukraine, tel. +38 (095) 795 81 24, e-mail vakulenko_leonid@mail.ru

References

Vakulenko I.O. Vtoma metalevykh materialiv v konstruktsiiakh rukhomoho skladu [Fatigue of metallic materials in the construction of rolling stock]. Dnipropetrovsk, Makovetskyi Publ., 2012. 152 p.

Kuzin M.O. Matematychne modeliuvannia parametriv vtomnoi mitsnosti strukturno-neodnoridnykh metalichnykh system [Mathematical simulation of fatigue strength parameters in structural non-uniform metallic systems]. Vіsnyk Dnіpropetrovskoho natsіonalnoho unіversitetu zalіznychnoho transportu іmenі akademіka V. Lazariana [Bulletin of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan], 2011, issue 38, pp. 213-219.

Kuzin O.A. Rol struktury v protsesakh znoshuvannia feryto-perlitnykh stalei [The role of structure in the ferrite-pearlitic steel wear processes]. Vіsnyk Dnіpropetrovskoho natsіonalnoho unіversitetu zalіznychnoho transportu іmenі akademіka V. Lazariana [Bulletin of Dnipropetrovsk National University of Railway Transport named after Academician V. Lazaryan], 2011, issue 37, pp. 224-229.

Manzhula K.P. Ob ispolzovanii krivykh Frencha pri prognozirovanii tsiklicheskoy dolgovechnosti [On the use of French curves in predicting the cyclic life]. Problemy prochnosti − Strength of Materials, 2005, no. 1, pp. 88-95.

Mruz Z. Uprochneniye i nakopleniye povrezhdeniy v metallakh pri monotonnom i tsiklicheskom nagruzhenii [Hardening and accumulation damages in metals under monotonic and cyclic loading]. Teoreticheskiye osnovy inzhenernykh raschetov − Theoretical foundations of engineering calculations, 1983, no. 2, pp. 44-50.

Privalova V.V., Struzhanov V.V. Nekotoryye zakonomernosti izmeneniya svoystv materialov v khode tsiklicheskogo rastyazheniya [Some patterns of change in the material properties in the course of cyclic tension]. Vestnik Samarskogo gosudarstvennogo tekhnicheskogo universiteta. Seriya: Fiziko-matematicheskiye nauki [Bulletin of Samara State Technical University. Series: Physical and Mathematical Science], 2012, no. 1 (26), pp. 110-115.

Struzhanov V.V., Bashurov V.V. Modifikatsionnaya model Mazinga [Masing modification model]. Vestnik Samarskogo gosudarstvennogo tekhnicheskogo universiteta. Seriya: Fiziko-matematicheskiye nauki [Bulletin of Samara State Technical University. Series: Physical and Mathematical Science], no. 1 (14), 2007, pp. 29-39.

Feltner E., Morrou A. Energiya gisterezisa mikroplasticheskoy deformatsii kak kriteriy ustalostnogo razrusheniya [The hysteresis energy of microplastic deformation as a criterion for fatigue failure]. Tekhnicheskaya mekhanika − Technical Mechanics, 1961, no. 1, pp. 20.

Hlybov A.A. Modelirovaniye nakopleniya ustalostnykh povrezhdeniy i sozdaniye sistemy diagnostirovaniya tonkostennykh konstruktsiy. Avtoreferat Dis. [Simulation of fatigue damage accumulation and the creation a system of thin-walled structures diagnosis. Author’s abstract]. Novgorod, 2002. 15 p.

Elin F. Vliyaniye rastyagivayushchey sredney deformatsii na energiyu plasticheskoy deformatsii i tsiklicheskiye svoystva [Effect of mean tensile strain on the energy of plastic deformation and the cyclic properties]. Teoreticheskiye osnovy inzhenernykh raschetov − Theoretical foundations of engineering calculations, 1985, no. 2, 25 p.

Helforl G.R. The Energy Required for Fatigue. Journal of Materials, 1966, vol. 1, no. 1, pp. 3-18.

Lefebvre D., Ellyin F. Cyclic Response and Inelastic Strain Energy in Low Cyclic Farigue. International Journal of Fatigue, 1984, vol. 6, no. 1, 1984, pp. 9-15.

Miner M.A. Cumulative Damage in Fatigue. ASME Journal of Applied Mechanics, 1955, vol. 12, pp. A159 – A164.

Published

2013-08-25

How to Cite

Kulichenko, A. Y., Kuzin, N. O., & Vakulenko, L. I. (2013). Fatigue damage accumulation of details in cars according to criterion of specific energy of total strain. Science and Transport Progress, (4(46), 83–89. https://doi.org/10.15802/stp2013/16583

Issue

Section

MATERIAL SCIENCE