Application of thermoelectricity in fatigue of metals

An online approach is proposed to predict the fatigue life of metallic specimens under cyclic loading using the concept of thermoelectricity. The working principle of the methodology is described, and experimental results are performed with a fully reversed bending fatigue testing apparatus to evalu...

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Bibliographic Details
Published in:Fatigue & fracture of engineering materials & structures 2021-05, Vol.44 (5), p.1162-1177
Main Authors: Hajshirmohammadi, Behnam, Khonsari, Michael M.
Format: Article
Language:English
Subjects:
Bending fatigue
Carbon steels
Correlation analysis
Cyclic loads
Fatigue life
Fatigue tests
fracture fatigue entropy
Infrared cameras
Metal fatigue
Reversed bending
Seebeck coefficient
Test equipment
Thermoelectricity
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Summary:An online approach is proposed to predict the fatigue life of metallic specimens under cyclic loading using the concept of thermoelectricity. The working principle of the methodology is described, and experimental results are performed with a fully reversed bending fatigue testing apparatus to evaluate the efficacy of the approach. Results are presented that correlate the measured thermoelastic potential for low‐carbon steel 1018 specimens measured via an infrared camera. It is shown that the application of thermoelectricity provides a practical methodology for early prediction of fatigue.
ISSN:8756-758X
1460-2695
DOI:10.1111/ffe.13421