A.Yu. Fedorova M.V. Bannikov M.V. Bannikov O.A. Plekhov E.V. Plekhova


The work is devoted to the experimental study of heat dissipation process caused by fatigue crack propagation. To investigate a spatial and time temperature evolution at the crack tip set of experiments was carried out using specimens with pre-grown centered fatigue crack. An original mathematical algorithm for experimental data treatment was developed to obtain a power of heat source caused by plastic deformation at crack tip. The algorithm includes spatial-time filtration and relative motion compensation procedures. Based on the results of mathematical data treatment, we proposed a way to estimate the values of J-integral and stress intensity factor for cracks with pronounced the plastic zone.


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    How to Cite

    Fedorova, A., Bannikov, M., Bannikov, M., Plekhov, O., & Plekhova, E. (2012). Infrared thermography study of the fatigue crack propagation. Frattura Ed Integrità Strutturale, 6(21), 46–53. https://doi.org/10.3221/IGF-ESIS.21.06