The concept of using a weighted amplitude to determine the fatigue life of load stress blocks

• Autorzy: Obrał Justyna

Identyfikatory

DOI

10.15632/jtam-pl/138673

• Języki publikacji: EN

Abstrakty

EN

This work shows the model for determining the fatigue life of block loads. The proposed model is a kinematic model that can be used using a linear fatigue characteristic, i.e. in the range of a large number of cycles. The model has been developed on the basis of the previous hypotheses of cumulation of damage by Palmgren-Miner using a weighted amplitude of m-degree. The final version proposes calculation of the variable amplitude of the average based on these two models.

Słowa kluczowe

EN

uniaxial load; damage; stress amplitude

• Wydawca: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
• Czasopismo: Journal of Theoretical and Applied Mechanics
• Rocznik: 2021
• Tom: Vol. 59 nr 3
• Strony: 515--518
• Opis fizyczny: Bibliogr. 13 poz., rys.

Twórcy

autor

Obrał Justyna

• Opole University of Technology, Faculty of Mechanical Engineering, Opole, Poland

Bibliografia

• 1. Bathias C., Pineau A., Eds., 2010, Fatigue of Materials and Structures: Fundamentals, John Wiley, London: Hoboken, NJ.
• 2. Bőhm E., Kurek M., Junak G., Cieśla M., Łagoda T., 2014, Accumulation of fatigue damage using memory of the material, Procedia Materials Science, 3, 2-7.
• 3. Bőhm E., Kurek M., Łagoda T., Łagoda K., 2016, The use of a power law function for fatigue life estimation for block loads, Solid State Phenomena, 250, 1-9.
• 4. Bőhm E., Kurek M., Łagoda T., 2020, Fatigue damage accumulation model of 6082-T6 aluminum alloy in conditions of block bending and torsion, Journal of Testing and Evaluation, 48, 6, 4416-4434.
• 5. Ebbinghaus H., 1913, Memory: a contribution to experimental psychology, [In:] Classics in the History of Psychology, C.D. Green (Edit.), York University, Toronto, Ontario.
• 6. Gassner E., 1954, Fatigue strength. A basis for assessment for structural parts with statistically changing operational loads (in German), Konstruktion, 6, 3, 97-104.
• 7. Liu J., Zenner H., 1993, Calculation of the fatigue strength with multi-axis loading – Part 1 (in Germany), Materialwissenschaft und Werkstofftechnik, 24, 240-249.
• 8. Łagoda T., Sonsino C.M., 2004, Comparison of different methods for presenting variable amplitudę loading fatigue results, Materialwissenschaft und Werkstofftechnik, 35, 2-61.
• 9. Marco S.M., Starkey W.L., 1954, A concept of fatigue damage, Transactions of the ASME, 76, 627632.
• 10. Miner M., 1945, Cumulative damage in fatigue, Journal of Applied Mechanics, 12, 159-164.
• 11. Palmgren A.G., 1924, The life length of roller bearings or durability of ball bearings (in German), Zeitschrift des Vereines Deutscher Ingenieure (ZVDI), 14, 339-341.
• 12. Serensen S.V., Kogayev V.P., Snajdorovic R.M., 1975, Bearing Capacity and Strength Calculation of Machine Parts (in Russian), Mashinostroenie, 3rd ed.
• 13. Skibicki D., Sempruch J., Pejkowski L., 2014, Model of non-proportional fatigue load in the form of block load spectrum, Materialwissenschaft und Werkstofftechnik, 45, 68-78.

Uwagi

„Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).”