Using approaches of computational mechanics in investigation of structural failure causes

Authors

  • Igor Yastreb Lviv Research Institute for Forensic Examinations, Lipinskiy st. 54, 79024 Lviv, Ukraine
  • Oleg Kuzin Ukrainian National Forestry University, Gen. Chuprynky st. 103, 79057 Lviv, Ukraine
  • Tatjana Meshcheryakova
  • Nickolaj Kuzin Lviv Polytechnic National University, Stepan Bandera st. 12, 79013 Lviv, Ukraine https://orcid.org/0000-0002-6032-4598
  • Artem Ripenko Odessa Research Institute for Forensic Examinations, Uspenskaya st. 83/85, 65011 Odessa, Ukraine
  • Pavel Vovk Odessa Research Institute for Forensic Examinations, Uspenskaya st. 83/85, 65011 Odessa, Ukraine

DOI:

https://doi.org/10.14311/AP.2026.66.0463

Keywords:

forensic examination, computational mechanics, fracture investigation, finite elements methods

Abstract

This article proposes an approach to analysing the causes of part failure, which is based on using mathematical modelling to calculate mechanical loads and strength parameters by finite-element analysis. It then assesses the durability of the structure using methods of mechanics of damaged media that take into account the accumulation of structural defects in the material. The developed approach was used to calculate the critical loads that led to the destruction of a passenger car engine crankshaft and to establish the reasons for their occurrence. This also enabled technical solutions to be proposed to eliminate such emergency situations.

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References

[1] A. J. McEvily. Metal failures: Mechanisms, analysis, prevention. John Wiley & Sons, New York, USA, 2002. ISBN 978-0471414360.

[2] B. Ðorđević, S. Sedmak, D. Tanasković, et al. Failure analysis and numerical simulation of slab carrying clamps. Fracture and Structural Integrity 15(55):336–344, 2020. https://doi.org/10.3221/IGF-ESIS.55.26

[3] H. D. Bui. Fracture mechanics: Inverse problems and solutions, vol. 139 of Solid Mechanics and Its Applications. Springer Dordrecht, Dordrecht, Netherlands, 2006. https://doi.org/10.1007/978-1-4020-4837-1

[4] V. D. Garderman. Tekhnicheskaya ekspertiza razrusheniy detaley avtomobiley [In Russian; Technical examination of the destruction of car parts]. Ministry of Internal Affairs of the Ukrainian SSR, Kyiv, Ukraine, 1976.

[5] A. O. Vatulyan. Obratnyye zadachi v mekhanike deformiruyemogo tverdogo tela [In Russian; Inverse problems in the mechanics of a deformable solid]. Fizmatlit, Moscow, Russia, 2007.

[6] G. S. Pisarenko (ed.). Opir materialiv [In Ukrainian; Resistance of Materials]. Higher School, Kyiv, Ukraine, 2nd edn., 2004.

[7] V. T. Troshenko (ed.). Prochnost’ materialov i konstruktsiy [In Russian; Strength of materials and structures]. Akademperiodyka, Kyiv, Ukraine, 2005.

[8] V. Kopylov, O. Kuzin, N. Kuzin. Improving contact durability of polycrystalline systems by controlling the parameters of large-angle grain boundaries. Eastern-European Journal of Enterprise Technologies 5(12):14–22, 2019. https://doi.org/10.15587/1729-4061.2019.181441

[9] J. L. Bogdanoff, F. Kozin. Probabilistic models of cumulative damage. John Wiley & Sons, New York, 1985. ISBN 9780471881803.

[10] S. V. Serensen, N. A. Makhutov. Resistance of a low-carbon steel weld to low-cycle failure as a function of the properties of individual zones. Strength of Materials 2(12):1239–1247, 1970. https://doi.org/10.1007/BF01528831

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Published

2026-09-08

Issue

Vol. 66 No. 4 (2026)

Section

Articles

License

Copyright (c) 2026 Igor Yasteb, Oleg Kuzin, Tatjana Meshcheryakova, Nickolaj Kuzin, Artem Ripenko, Pavel Vovk

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Yastreb, I., Kuzin, O., Meshcheryakova, T., Kuzin, N., Ripenko, A., & Vovk, P. (2026). Using approaches of computational mechanics in investigation of structural failure causes. Acta Polytechnica, 66(4), 463–469. https://doi.org/10.14311/AP.2026.66.0463