Plate-Gap Model of a Porous Solid and its Application to Impact by Reduced Density Projectiles
Abstract
The sensitivity of the peak axial pressure profiles, obtained using the impact model of an earlier report (NASA CR-609), to a change in the Hugoniot function assumed for the reduced density projectiles is examined briefly. The previous Hugoniot function, based on the Los Alamos equation of state for aluminum, is replaced by one based on the Plate-Gap model of a porous solid due to Thouvenin. A modification of this model is described in detail and its comparison with existing experimental data for six porous materials and the predictions of the theoretically based equation of state due to Wagner and Bjork for aluminum is noted. Comparison is also made of calculated peak axial pressures obtained using the impact model for the case of normal density aluminum projectiles impacting aluminum with experimental data obtained from corresponding jet projector impact shots conducted by the General Motors Defense Research Laboratory.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1968
- Accession Number
- ADA395515
Entities
People
- J. F. Heyda
Organizations
- General Electric