PSI - Issue 2_B

Chernyatin A.S. et al. / Procedia Structural Integrity 2 (2016) 2650–2658 Chernyatin A.S., MatvienkoYu.G., Lopez-Crespo P. / Structural Integrity Procedia 00 (2016) 000–000

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For this purpose, the geometrical and kinematic equations (10) and others should be rewrite for 3D problem. The displacement fields measured experimentally between two different loads allow extraction of singular and non singular terms of the stress field near the crack-tip, the crack-tip coordinates and the crack orientation. The efficacy of the approach has been demonstrated on real fatigue crack and therefore makes the approach particularly useful for fatigue crack growth studies. The methodology allows automatic tracking of a fatigue crack with simultaneous determination of the fracture mechanics parameters without additional corrections from standard DIC surface observations. Acknowledgements The authors acknowledge the support of the Russian Science Foundation (Project N 14-19-00383) References McNeill SR, Peters WH, Sutton MA., 1987. Estimation of stress intensity factor by digital image correlation. Engineering Fracture Mechanics 28(1), 101–112. Westergaard HM., 1939. Bearing pressures and cracks. Journal of Applied Mechanics 61, 49–53. Yoneyama S, Murasawa G. Digital Image Correlation, in Experimental Mechanics. In: Freire JLdF, editor. Encyclopedia of Life Support Systems (EOLSS) Oxford, UK: Eolss Publishers, 2009. Riddell WT, Piascik RS, Sutton MA, Zhao W, McNeill SR, Helm JD., 1999. Determining fatigue crack opening loads from near-crack-tip displacement measurements. In: McClung, Newman, editors. Advances in fatigue crack closure measurement and analysis, 2nd volume, ASTM STP 1343, 157–174. Sutton MA, Zhao W, McNeill SR, Helm JD, Piascik RS, Riddell WT., 1999. Local crack closure measurements: development of a measurement system using computer vision and a far-field microscope. In: McClung, Newman, editors. Advances in fatigue crack closure measurement and analysis, 2nd volume, ASTM STP 1343, 145–156. Carroll J, Efstathiou C, Lambros J, Sehitoglu H, Hauber B, Spottswood S, Chona R., 2009. Investigation of fatigue crack closure using multiscale image correlation experiments. Engineering Fracture Mechanics 76, 2384–2398. Williams ML, 1957. Stress distribution at base of stationary crack. American Society of Mechanical Engineers Transactions - Journal of Applied Mechanics 24, 109. Anderson TL. Fracture mechanics: fundamentals and applications, 2nd ed. Boca Raton: CRC Press, 1994. Lopez-Crespo P, Burguete RL, Patterson EA, Shterenlikht A, Withers PJ, Yates JR., 2009. Study of a crack at a fastener hole by digital image correlation. Experimental Mechanics 49, 551–559. Zhang R, He L., 2012. Measurement of mixed-mode stress intensity factors using digital image correlation method. Optics and Lasers in Engineering 50, 1001–1007. Sanford RJ, Dally JW, 1979. A general method for determining mixed-mode stress intensity factors from isochromatic fringe patterns. Engineering Fracture Mechanics 11, 621–633. Beretta S, Rabbolini S, Di-Bello A., 2015. Multi-scale crack closure measurements with digital image correlation on Haynes 230. Frattura ed Integrità Strutturale 33, 174–182. MoutouPitti R. Découplage des modes de rupture dans les matériaux viscoélastiques orthotropes: modélisation et expérimentation, PhD thesis. University of Limoges; 2008. Pop O, Meite M, Dubois F, Absi J., 2011. Identification algorithm for fracture parameters by combining DIC and FEM approaches. International Journal of Fracture 170, 101–114. Pop O, Dubois F, Meite M, Absi J., 2013. Mixed-mode fracture characterization by coupling digital images correlation with finite elements method. 21ème Congrès Français de Mécanique. Bordeaux, France, 101–114. Hellen T., 1975. On the method of virtual crack extensions. International Journal of Numerical Methods in Engineering 9, 187–207. Parks DM, 1974. A stiffness derivative finite element technique for determination of crack tip stress intensity factors. International Journal of Fracture 10, 487–502. Destuynder P, Djaoua M., 1981. Sur une interpretation mathematique de l’integrale de Rice en theorie de la rupture fragile. Math Meth Appl Sci. 3, 70–87. Rethore J, Gravouil A, Morestin F, Combescure A, 2005. Estimation of mixedmode stress intensity factors using digital image correlation and an interaction integral. International Journal of Fracture 132, 65–79. Erdogan F, Sih. GC, 1963. On the crack extension in plates under plane loading and transverse shear. Journal of Basic Engineering 85, 519–527. Mathieu F, Hild F, Roux S., 2012. Identication of a crack propagation law by digital image correlation. International Journal of Fatigue 36, 146– 154. Yoneyama S, Morimoto Y, Takashi M., 2006. Automatic evaluation of mixed-mode stress intensity factors utilizing digital image correlation. Strain 42, 21-29. Hamam R, Hild F, Roux S., 2007. Stress intensity factor gauging by digital image correlation: application in cyclic fatigue. Strain 43, 181–192.