In-situ Technique for Fatigue Life Prediction of Metals Based on Temperature Evolution
Document Type
Article
Publication Date
2-15-2021
Abstract
This article offers a technique for predicting the fatigue life of metals by monitoring its surface temperature. The method is based on the examination of the cooling characteristics of a specimen once its temperature becomes steady and actuation halted. It is shown that the cooling curve is unique for a specific material and geometry regardless of the operating conditions such as the loading type, amplitude, and frequency. Using this finding along with the concept of fracture fatigue entropy (FFE), a technique is introduced to readily predict fatigue life in-situ. Results of extensive sets of experiments for cyclically actuated fully-reversed bending and tension-compression (TC) types of loadings, at different frequencies, and for various specimens’ geometries are presented to test the validity of the technique.
Publication Source (Journal or Book title)
International Journal of Mechanical Sciences
Recommended Citation
Mehdizadeh, M., Haghshenas, A., & Khonsari, M. (2021). In-situ Technique for Fatigue Life Prediction of Metals Based on Temperature Evolution. International Journal of Mechanical Sciences, 192 https://doi.org/10.1016/j.ijmecsci.2020.106113
