PSI - Issue 65

A.N. Romanov / Procedia Structural Integrity 65 (2024) 200–208 A.N. Romanov / Structural Integrity Procedia 00 (2024) 000–000

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10. Exhaustion of the bearing capacity (limit state) of the material by loss of plastic deformation stability due to the formation and development of an internal crack in fatigue failure due to ultimate accumulated damage with the formation and growth of a surface crack to the limit value. 11. Under uniform deformation (rigid loading and multi-cycle fatigue) the limit state is characterized by the formation of a surface crack. 12. Critical stresses and strains can be used as limiting stresses and strains when modeling stress-strain states when limit values occur during the cyclic elastoplastic deformation process. References Romanov, A., 2007. Criteria of fatigue fracture. Handbook. Engineering Journal, 6 , pp. 1-35. Romanov, A., 2020. Damage accumulation in carbon steel under high-temperature low-cycle fatigue.XIV International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. AIP Conference Proceedings, XIV International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. 2315, 020039. Romanov, A., 2021. Damage accumulation in cyclically stable steel under low-cycle loading and elevated temperature. IOP Conference Series Materials Science and Engineering 1023(1):012026. Romanov A., 2022. Damage accumulation and limit states under the low-cycle loading of structural softening steel. Engineering Failure Analysis, 142, 106836. Carpinteri, A., Fortese, G., Ronchei, C., Scorca, D., Vantadori, S. 2016. Spectral fatigue life estimation non-proportional multiaxial random loading. Theoretical and Applied Fracture Mechanics, 83, 67-72. Gates, N.R., & Fatemi, A., 2017. On the consideration of normal and shear stress interaction in multiaxial fatigue damage analysis. International Journal of Fatigue, 100, 322-336. Iacoviello, F., Di Cocco, V., & Bellini, C. 2019. Fatigue crack propagation and damaging micromechanisms in Ductile Cast Irons. International Journal of Fatigue, 124, 48-54.