Backward analysis for isentropic compression experiments with windows backed on samples

Theoritical analysis of quasi-isentropic compression via flier-plate with grade wave impadence;

By using such flier-plate material, quasi-isentropic compression to target material or projectile can be realized, and based on it hypervelocity launching of projectile is further accomplished.

In the present paper, a theoretical model of generating quasi isentropic compression via the W Mo Ti system flyer was established, and the numerical simulation has been carried out.

Take water and tantalum for examples,the calculation results show this kind of flyers can produce good effects of quasi isentropic compression for water and tantalum,and the result for water is in accord with the reference data,the calculation results for the interface velocity between Ta/LiF is in accord with the experime.

The hydrodynamic process of the gas capsule compression with a single radiative pulse drive is divided into four phases: shock compression,nearly isentropic compression,compression and expansion with temperature reduction.

Through the quasi-static compression test, its cushion energyabsorbing property is investigated, and finite element method is applied to simulate the dynamicresponse process of laminated shells under the drop impact.