https://doi.org/10.1051/epjconf/20100638008
Thermal emission in fatigue described by power laws
Politecnico di Torino, Dipartimento di Meccanica,
C.so Duca degli Abruzzi
24, 10129
Torino,
Italy
a e-mail: francesca.cura@polito.it
In the present work, a theoretical model proposed by the literature and focused on the relationship between microplasticizations thermal behaviour and fatigue scatter is analysed and applied to fatigue test results of standard and notched steel specimens. The same experimental data are subjected to the TCM (Two Curves Method) thermographic elaboration technique, in order to quickly evaluate fatigue limit values. TCM method has been modified, aiming at interpolating thermal data referred to the region of loads upper than fatigue limit with a non linear regression law having the same mathematical structure of the theoretical model equations (power laws).
© Owned by the authors, published by EDP Sciences, 2010
