METHOD OF DETERMINATION OF DAMAGEABILITY OF LOADED MATERIAL Russian patent published in 1997 - IPC

FIELD: measurement technology. SUBSTANCE: number n(t_j) of cracks formed in loaded material for time t_j(j≥1) is measured, dependence n = f(t_j) is plotted, it is extrapolated up to time moment t at which measure of damage is estimated. Average length τ of cracks and volume of regions of cracks formation are measured, limiting number n_*= V(er)^-3 of cracks is calculated and measured of damage of material at time moment t is determined as probability Q_i(t) of formation of cluster from i initial cracks by relation , where K(t) = [V/n(t)]^1/3/r; e is base of natural logarithms. EFFECT: enhanced authenticity of method. 3 dwg