Deformation and Fracture of Condensed Materials in Extreme Conditions

Dear Colleagues,

Under high strain rate pulsed shock wave load with duration from tens of picoseconds to microseconds, the flow and fracture stress in metals have a temperature-rate dependence. In experiments, the limit (“ideal”) value of shear strength and tensile strength has been approached, and it has been confirmed that the yield stress of some metals increases abnormally with temperature at high strain rates. New evidence has been obtained that demonstrates the strong multiplication of dislocations produced by the elastic precursors following the compression shock waves. It has been found that inclusions and other strengthening factors may have a softening effect under these conditions. New and unexpected features have been observed during the evolution of the elastoplastic compression shock wave. In the next decade, we should expect a significant expansion of the use of shock wave technology to solve problems of materials science and the physics of strength and plasticity. Further studies of strength variations at the meso-level and elucidations of the mechanism of formation of localized shear bands will contribute to the design of new high-strength materials and the improvement of their processing technology. Obtaining the details of the mechanism of brittle fracture during compression will contribute to the advancement in the creation and application of superhard materials, and aid in earthquake prediction.

We expect scholars and researchers from academia and industry around the world to contribute to this Special Issue.

Prof. Dr. S. V. Razorenov
Guest Editor

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