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A PENOMENOLOGICAL MODEL OF THE DAMAGE EVOLUTION KINETICS IN SOLIDS UNDER PULSE IMPACTS

S. S. Sokolov
VANT. Ser.: Mat. Mod. Fiz. Proc 2012. Вып.4. С. 13-26.

A phenomenological model of kinetics describing the origination and evolution of damages in solid materials under the effect of pulse loadings and compaction of fractured materials under the effect of compression forces is presented. A continual-kinetic approach was used to construct the model, in which fracturing is simulated as the process of accumulating damages under the effect of tensile stresses and shear strains. Results of the numerical simulation of fracture in wedge-like uranium samples and a flat aluminum sample are given along with comparison between the calculated results and experimental data.

Keywords: phenomenological model, origination and evolution of damages, fracture due to shear strains and tensile stresses, compacting, validation simulations.








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