Abstract

The authors have experimentally established the effect of a shock short-term softening of the materials from different classes by impulse introduction of extra energy into the material. By using the method of transmission electron microscopy, it has been revealed that this effect is associated with the formation of dissipative structures. They are formed in the form of thin localized bands, volume bound in the material at different scale levels. The formation of such structure is explained by the realization of dynamic non-equilibrium processes in the material under the influence of the additional force load. For the first time such dissipative bands structures are recorded at relatively low strain rate 2…60s-1. It has been noted that there is the necessity of taking into the account the established effect when calculating the durability of structural elements. An algorithm for calculating the durability of elements of structure with taking into the account the dynamic non-equilibrium processes is proposed.

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