20.500.12556/DKUM-87722 Fracture mechanics analysis of a fatigue failure of a parabolic spring This study analyzed the fatigue failure of a parabolic spring made of 51CrV4 steel. A fracture mechanics approach was used to quantify the driving force and resistance for different loading configurations, inclusion sizes, and residual stresses. The analysis considered surface and internal initiation processes, including the impact of residual stresses introduced by shot peening. Key findings include the ability of the methodology to analyze the variables influencing fatigue resistance and failure configuration, the competition between surface and internal fracture processes, the limitation of residual stresses, the importance of minimizing the maximum inclusion size, and the potential for enhancing the propagation threshold for long cracks. The employed methodology facilitates not only the quantification but also the comprehension of the influence of the intrinsic material resistance on the fracture process. spring fracture mechanics short cracks fatigue strenght estimation small defect assessment vzmet mehanika loma kratke razpoke ocena trdnosti majhne napake true false true Universidade Federal do Rio de Janeiro, Coordenação dos Programas de Pós-Graduação em Engenharia Angleški jezik Slovenski jezik https://www.scielo.br/j/rmat/ Članek v reviji 2024-03-26 09:08:42 2024-03-26 09:27:17 2024-04-03 11:16:32 0000-00-00 00:00:00 2023 0 0 12 str. Št. 3 Letn. 28 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2023-04-04 2023-06-27 2023-08-21 539.2 162607363 10.1590/1517-7076-RMAT-2023-0115 1517-7076 Chapetti-2023-Fracture_mechanics_analysis_of_a.pdf Chapetti-2023-Fracture_mechanics_analysis_of_a.pdf 1 DB3CA1150043246C78AC382F5DED77FF ffbd6e86cabce88417fbba960cd53822c571b0ec053adb6d7bd131181a3b54ef 6e3d3ead-eb4a-11ee-adef-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=177403 https://doi.org/10.1590/1517-7076-RMAT-2023-0115 0 89c7cdde-eb4a-11ee-adef-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=177404 Fakulteta za strojništvo 0 0 0