title: Hydrodynamic instability of elastic-plastic solid plates at the early stage of acceleration.
abstract: A model is presented for the linear Rayleigh-Taylor instability taking place at the early stage of acceleration of an elastic-plastic solid, when the shock wave is still running into the solid and is driven by a time varying pressure on the interface. When the the shock is formed sufficiently close to the interface, this stage is considered to follow a previous initial phase controlled by the Ritchmyer-Meshkov instability that settles new initial conditions. The model reproduces the behavior of the instability observed in former numerical simulation results and provides a relatively simpler physical picture than the currently existing one for this stage of the instability evolution.
authors: E.T.S.I. Industriales, Instituto de Investigaciones Energéticas and CYTEMA, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
authors: A R
authors: AR
authors: Piriz
authors: Institute of Modern Physics, Chinese Academy of Science, 730000 Lanzhou, People's Republic of China.
authors: Y B
authors: YB
authors: Sun
authors: GSI Helmholtzzentrum für Schwerionenforschung Darmstadt, Planckstrasse 1, 64291 Darmstadt, Germany.
authors: N A
authors: NA
authors: Tahir