Inorganic Materials

, Volume 38, Issue 11, pp 1123-1126

First online:

Thermodynamic Evaluation of the Dynamic Elastic Limit of Metals

  • S. S. BatsanovAffiliated withCenter for High Dynamic Pressures, Mendeleevo, Solnechnogorskii raion

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Given that the plastic state of substances is similar to the liquid state, the work of plastic deformation is assumed to be proportional to the heat of melting. An equation is derived which relates the dynamic elastic limit to the volume change upon “mechanical melting.” The proportionality coefficient in this equation is determined by the degree of fragmentation of crystalline grains (shock-compression rate). The use of microscopic atomic rigidity characteristics makes it possible to derive a universal formula for calculating the elastic limit with a reasonable accuracy.