Mendes, Felipe Antonio Carreirinha [UNESP]Silva, Fernando de Azevedo [UNESP]2014-05-272014-05-272007-12-01SAE Technical Papers.http://hdl.handle.net/11449/70109About 99% of mechanical failures are consequence of the phenomena of fatigue, which consists on the progressive weakening of the resistant section of a mechanical component due to the growing of cracks caused by fluctuating loadings. A broad diversity of factors influences the fatigue life of a mechanical component, like the surface finishing, scale factors, among others, but none is as significantly as the presence of geometric severities. Stress concentrators are places where fatigue cracks have a greater probability to occur, and so on, the intuit of this work is to develop a consistent and trustfully methodology to determine the theoretical stress concentration factor of mechanical components. Copyright © 2007 SAE International.engFatigue cracksMechanical componentsMechanical failuresScale FactorStress concentratorsSurface finishingTheoretical stress concentration factorFinite element methodStress concentrationFatigue of materialsTrabalho apresentado em evento10.4271/2007-01-2683Acesso aberto2-s2.0-848774284671161800349977394