Abstract
Many critical mechanical parts in aerospace, automobile and other industries are subjected to complex cyclic loading during their service life. The 30HGSA steel is one of the most commonly used for manufacturing of this highly loaded structures. The 30HGSA has gained a great interest since it exhibits very good strength properties, high hardness, abrasion resistance and contains a trace amount of nickel. Despite its wide applications and superb characteristics the data about material’s behavior under monotonic and combined cyclic in-phase tension-compression and torsion loading is not available in the literature. The paper aims to fill that void by providing a thorough experimental and numerical analysis of the 30HGSA steel. We will examine and compare Gough–Pollard (GP) and Dębski–Gołoś–Dębski failure criteria in the form of limit curves (DGD-LC) and evaluate high-cycle fatigue models. The obtained experimental high-cycle limit curves will be used to make comparison with the above mentioned failure criteria. The results has shown better agreement between experimental data and DGD-LC model than with GP approach.
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Dębski, D., Gołoś, K., Dębski, M., Misztela, A. (2020). Multiaxial Fatigue Behavior of 30HGSA Steel Under Cyclic Tension-Compression and Reversed Torsion. In: Niepokolczycki, A., Komorowski, J. (eds) ICAF 2019 – Structural Integrity in the Age of Additive Manufacturing. ICAF 2019. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-21503-3_36
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DOI: https://doi.org/10.1007/978-3-030-21503-3_36
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