The use of computational contact mechanics approaches to assess the performance of parts bearing stress concentrators

• Autorzy: Lyashenko B. A. , Stotsko Z. A. , Kuzin O. A. , Kuzin M. O.

Identyfikatory

DOI

10.5604/01.3001.0014.6913

• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of this work is to build new computational schemes for assessing the strength parameters of parts with inhomogeneous properties of surface layers in the presence of stress concentrators. Design/methodology/approach: Using the developed approaches of mathematical modeling and open software for calculating the structures of the FEM - FEniCS, the required thickness of the hardened zones of parts has been established, which ensures their minimum softening during operation, depending on the characteristics of the stress concentrator. Findings: It is shown that for each size of the surface stress concentrator there is a critical value of the hardening thickness, the excess of which does not affect the operational strength of the parts, but increases the cost of technological operations. Research limitations/implications: In this article proposes a method for calculating the influence of the dimensional characteristics of hardening zones on the contact strength of parts with stress concentrators under conditions of prevailing power loads. Practical implications: The results obtained in this work were used to determine the technological modes of plasma hardening, which ensure an increase in the contact strength of parts with stress concentrators, depending on their dimensional characteristics. Originality/value: Using the approaches of computational mechanics and mathematical and computer modeling, methods for controlling the contact strength of parts with inhomogeneous non-local properties in the presence of a surface stress concentrator are proposed for the first time.

Słowa kluczowe

EN

power loads; non-local mathematical model; stress concentrator; optimization

PL

obciążenia mocy; model matematyczny; koncentrator naprężeń; optymalizacja

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2020
• Tom: Vol. 103, nr 1
• Strony: 25--32
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Lyashenko B. A.

• G.S. Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine, 2 Timiryazevs’ka str., Kyiv, 01014, Ukraine

autor

Stotsko Z. A.

• Lviv Polytechnic National University, 12 Bandera street, Lviv, 79013, Ukraine

autor

Kuzin O. A.

• Lviv Branch of Dnipro National University of Railway Transport named after academician V. Lazaryan, 12a I. Blazhkevich street, Lviv, 79052, Ukraine

autor

Kuzin M. O.

• Lviv Branch of Dnipro National University of Railway Transport named after academician V. Lazaryan, 12a I. Blazhkevich street, Lviv, 79052, Ukraine
• Lviv Research Institute for Forensic Expertise, 54 Lipinskogo street, Lviv, 79024, Ukraine

Bibliografia

• [1] A.C. Fisher-Cripps, Introduction to Contact Mechanics, Springer, 2007. DOI: https://doi.org/10.1007/978-0-387-68188-7
• [2] J.P. Barber, Contact Mechanics, 2018. DOI: https://doi.org/10.1007/978-3-319-70939-0
• [3] M. Paggi, D. Hills, Modeling and Simulation of Tribological Problems in Technology, Springer, 2020. DOI: https://doi.org/10.1007/978-3-030-20377-1
• [4] P. Wriggers, Computational Contact Mechanics, John Wiley & Sons, 2006. DOI: https://doi.org/10.1007/978-3-540-32609-0
• [5] V.L. Popov, Contact Mechanics and friction. Physical principles and applications, Springer, 2017. DOI: https://doi.org/10.1007/978-3-662-53081-8
• [6] Y. Murakami, Theory of elasticity and stress concentration, John Wiley & Sons, 2017. DOI: https://doi.org/10.1002/9781119274063
• [7] R.L. Mott, J.A. Untener, Applied Strength of Materials, CRC Press, 2018.
• [8] Strength of materials and structures, K.: Institute for Problems of Strength, 2004 (in Russian).
• [9] K. Gupta, Surface Engineering of Modern Materials, Springer, 2020. DOI: https://doi.org/10.1007/978-3-030-43232-4
• [10] L.A. Dobrzański, Engineering Materials and Materials Design, Fundamentals of Materials Science and Physical Metallurgy, WNT, Warsaw, 2006 (in Polish).
• [11] V.T. Troshchenko, Fatigue of metals in a non-uniform stress state, K.: Institute for Problems of Strength, 2011 (in Russian).
• [12] J. Drozdov, Applied tribology (friction, wear, lubrication), Eco-Press, Moscow, 2010 (in Russian).
• [13] S. Iwnicki, M. Spiryagin, C. Cole, T. McSweeney, Handbook of railway vehicle dynamics, CRS Press, 2020. DOI: https://doi.org/10.1201/9780429469398
• [14] O. Kuzin, B. Lukiynates, N. Kuzin, Continual description of polycrystalline systems taking into account their structure, Technology Audit and Production Reserve 1/1(45) (2019) 25-30. DOI: https://doi.org/10.15587/2312-8372.2019.156159
• [15] H.P. Langtangen, A. Logg, Solving PDEs in Python. The FEniCS Tutorial I, Springer Open, 2016. DOI: https://doi.org/10.1007/978-3-319-52462-7
• [16] R. Johansson, Numerical Python: Scientific Computing and Data Science Applications with Numpy, SciPy and Matplotlib, Apress, Berkeley, 2019. DOI: https://doi.org/10.1007/978-1-4842-4246-9
• [17] S.N. Bulychev, The ratio between the restored and unrecovered hardness when testing with nanomicroindentation, Journal of Technical Physics 69 (1999) 42-48 (in Russian).
• [18] Т.М. Meshcheryakova, I.P. Laushnik, S.A. Bespalov, M.O. Kuzin, Influence of microstructure on wear resistance of wheel steel after plasma hardening, Bulletin of Lviv Polytechnic State University: Optimization of Production Processes and Technical Control in Mechanical Engineering and Instrument Making 412 (2000) 120-124 (in Ukrainian).
• [19] Guidelines to best practices for heavy haul railway operations: wheel and rail interface issues, International Heavy Haul Association, 2001.
• [20] B.A. Lyashenko, Z.A. Stotsko, O.A. Kuzin, M.O. Kuzin, O.A. Mikosianchyk, Determination of the optimal parameters of the structure of functional gradient materials using mathematical modelling approaches, Journal of Achievements in Materials and Manufacturing Engineering 92/1 (2019) 13-18. DOI: https://doi.org/10.5604/01.3001.0013.3183

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).