Multiscale Defects Induced Criticality in Damage-Failure Transition Under Intensive Loading (Experimental and Theoretical Results)

Abstract

Defects kinetics is analyzed as specific type of the criticality in out-of-equilibrium system “solid with defects” – the structural-scaling transition. Defect induced mechanisms of structural relaxation are linked to the generation of different types of the collective modes of defects, that have the nature of self-similar solutions: auto-solitary waves related to multiscale plastic strain localization and blow-up dissipative structures providing the damage localization kinetics. The subjection of solid responses to mentioned self-similar solutions is analyzed both theoretically and experimentally with the goals to link strain and damage localization effects under adiabatic shear failure, splitting of shock wave fronts, the power law universality of fragmentation statistics and failure wave initiation and propagation with specific types of multiscale collective modes of defects. The data of high resolution experiments is analyzed according to developed theoretical approach.