PSI - Issue 2_B

Dmitry Bilalov et al. / Procedia Structural Integrity 2 (2016) 1951–1958 Author name / Structural Integrity Procedia 00 (2016) 000–000

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5. Conclusion Experimental and theoretical (numerical) study of dynamic strain localization allowed us to establish the structure induced mechanism of plastic strain localization as a possible mechanism of transition to the adiabatic shear failure. Evaluated temperature in the strain localization area (72°C) will not support conventionally used mechanisms of plastic strain localization as autocatalytic temperature control visco-plastic phenomena. Structural study of defect induced scaling properties revealed the correlated behavior of microshear ensemble that can be classified as structural transition providing the dynamic strain localization. Acknowledgements This study was supported by the Russian Science Foundation, project № 14-19-01173. References Naimark O.B. 2003. Collective properties of defects ensembles and some nonlinear problems of plasticity and fracture. Physical mesomechanics , 6, 39-63. Skripnyak N.V. 2013. Dynamic of fracture of aluminum-magnesium alloy AMg6 // Modern problems of science and education. 6. Froustey C., Naimark O., Bannikov M., Oborin V., 2010. Microstructure scaling properties and fatigue resistance of pre-strained aluminium alloys (part 1: Al-Cu alloy). European Journal of Mechanics A/Solids 29, 1008–1014.