2023
DOI: 10.30574/gjeta.2023.16.2.0173
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High cycle fatigue behavior of spot welds in DP 780, TRIP 780 and DC04 steel

Fabiano Ferreira Silva,
Hermano Nascimento Junior,
Roberto Rossy Chaves
et al.

Abstract: In this study, a methodology was successfully developed and validated to evaluate the behavior of spot welded joints of DP780, TRIP780 and DC04 steels in high cycle fatigue. Test specimens were made with three spot welds and Wohler curves were developed using the uniaxial tensile/traction load adopting the Owen R90C90 method. The spot welds showed an increase in fatigue life and a reduction in the maximum load, similar to steels. The influence of mechanical strength and material thickness tested and the types … Show more

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