“Fatigue Behavior of Sheet Steels for Automotive Industry” 921439
Carbon and rephosphorized pre-strained sheet steels for cold drawing forming operations were studied and the tensile, high cycle fatigue and fatigue crack propagation properties were determined. The fatigue limit was found to be higher for 20% than for 1% pre-strained condition. Threshold stress intensity factors (▵Ků) of 5.29 MPa. m1/2 for rephosphorized steel and 7.07 MPa. m1/2 for carbon steel. Critical crack lenghts were calculated by ▵Ků and fatigue limit data using the Lukas-Klesnil short-crack criterion. Through fractographic analysis it was possible to determine the general behavior of tested materials near threshold.
Citation: Vareda, L., Spinelli, D., and Müller-Spinelli, I., "“Fatigue Behavior of Sheet Steels for Automotive Industry”," SAE Technical Paper 921439, 1992, https://doi.org/10.4271/921439. Download Citation
Author(s):
Luiz Vicente Vareda, Dirceu Spinelli, Isa Müller-Spinelli
Affiliated:
Departamento de Materiais - EESC - USP, Departamento de Engenharia Materiais - UFSCar
Pages: 9
Event:
SAE Brasil
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Fatigue
Steel
Tensile strength
Forming
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