Issue 21

A. Yu Fedorova et alii, Frattura ed Integrità Strutturale, 21 (2012) 46-53; DOI: 10.3221/IGF-ESIS.21.06 53 result of infrared data treatment we determine the key characteristics associated with the heat dissipation processes at the crack tip, which allowed us to propose method for determining the current values of the J-integral and SIF. The sphere of applicability of this technique is wider than previously proposed methods for determining the SIF based on the linear thermo-elasticity equations. The set of developed mathematical algorithms and methods of the experiment significantly increases the accuracy of the results compared with previously published studies [9], and allows us to develop in a future an engineering methods for analyzing the current crack state inside of real constructions in a wide range of applied loads. R EFERENCES [1] A Geraci, G. La Rosa, A. Risitano, In: CRES Symposium, Catania Italy, (1984); published in: ATA Ingegneria Automotoristica, 38(8-9) (1985). [2] M.P. Luong, Mech. Mater.,28 (1988) 155. [3] A. Risitano, G. Risitano, Theoretical and Applied Fracture Mechanics, 54 (2010) 82. [4] A. A. Shanyavskiy, Bezopasnoe ustalostnoe razrushenie elementov aviakonstrukcii. Sinergetika v ingenernih prilogeniyah [Safe fatigue damage of aircraft construction elements. Synergetics in engineering applications]. Ufa, (2003) 803 [5] V. P. Vavilov, Diagnostika materialov, 72(3) (2006) 26. [6] M.P. Luong, Nuclear Engineering and Design., 158 (1995) 363. [7] O. Plekhov, T. Palin-Luc, O. Naimark, S. Uvarov, N. Saintier, Fatigue and fracture of engineering materials and structures, 28(1) (2005) 169. [8] O. Plekhov, N. Saintier, T. Palin-Luc, S. Uvarov, O. Naimark, Material Science and Engineering A, 462(1) (2007) 367. [9] M. Bannikov, A. Terekhina, O. Plekhov, Vestnik Permskogo gosudarstvennogo tehnicheskogo universiteta. Mehanika, 2 (2011) 14. [10] O. Plekhov, Technical Physics, 56(2) (2011) 301. [11] Nagahisa Ogasawara, Masaki Shiratori, Application of infrared thermography to fracture mechanics, SPIE Digital Library, 3056 (0277-786X/97), available at: http://spiedl.org/terms.