Numéro |
J. Phys. IV France
Volume 110, September 2003
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Page(s) | 905 - 910 | |
DOI | https://doi.org/10.1051/jp4:20020809 |
J. Phys. IV France 110 (2003) 905
DOI: 10.1051/jp4:20020809
Kinetics of mesostructure and reloading behavior of dynamically compressed solids
T.A. Khantuleva1, Yu.I. Mescheryakov2 and A.K. Divakov21 Saint-Petersburg State University, Russia
2 lnstitute of Problems of Mechanical Engineering RAS, Saint-Petersburg, Russia
Abstract
Experimental study of shock reloading processes during the uniaxial strain loading of aluminum alloy targets reveals a dependence
of reloading response of material on the particle velocity dispersion behavior. This response is found to be elastic-plastic
in case the velocity dispersion at the plateau of compressive pulse equals zero. In the presence of the velocity dispersion
the reloading response is pure plastic. This phenomenon is considered from the position of nonlocal hydrodynamic theory developed
for description of high-non-equilibrium processes in heterogeneous media.
© EDP Sciences 2003