  An analysis is presented of the applicability of the Kolsky technique for
studying the high-rate deformation processes of structural materials under
compression. Errors in the method caused by inertia and friction are estimated.
Modifications of the Kolsky method for studying the properties of materials
subjected to various stress-strain states are considered. Original
modifications of the method are presented that significantly expand the range
of mechanical properties that can be investigated. Issues connected with using
the Kolsky method to study the properties of brittle materials are analyzed.
