On the use of thermographic method to measure fatigue limits

AUTOR(ES)

Bandeira, Carlos Filipe Cardoso, Kenedi, Paulo Pedro, Castro, Jaime Tupiassú Pinho de

FONTE

Lat. Am. j. solids struct.

DATA DE PUBLICAÇÃO

22/10/2018

RESUMO

Abstract Traditional fatigue limit measurements are expensive and time consuming, requiring a large number of specimens and a long time to be completed. An alternative approach is used in this work to obtain the fatigue limit of a cold drawn steel, in a rotating bending machine, by monitoring temperature variations induced by different load range levels in just a few specimens. Comparisons with Dixon’s traditional up-and-down method confirm that this thermographic approach is indeed a much more efficient, faster, and cheaper method to obtain fatigue limits.

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