%0 Journal Article
%T Infrared thermography study of the fatigue crack propagation
%A A. Yu. Fedorova
%A M.V. Bannikov
%A O.A. Plekhov
%A E.V. Plekhova
%J Frattura ed Integrit¨¤ Strutturale
%D 2012
%I Gruppo Italiano Frattura
%X 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.
%K Fatigue crack
%K Heat dissipation
%K Infrared thermography
%U http://www.gruppofrattura.it/pdf/rivista/numero21/numero_21_art_6.pdf