Steady Flow of a Particulate Target Medium Over a Projectile: Experiments and Modeling
Abstract
Report developed under contract No. F08630-01-1-0007. This report presents the results of an experiment study on the deformation and strength properties of several particulate systems under quasi-static compression for a variety of loading histories and strain rate conditions. To gain better understanding of the role of particle size distribution, initial porosity and loading history on compaction, triaxial compression data were obtained on selected cohesive systems: 1. Spherical silica particles (silicon dioxide, floated powder) with a mean size of 63.5 m, 2. Cylindrical Polyethylene pellets, 4mm in height and 3mm in diameter, 3. Angular microsystalline cellulose, PH105, with a mean particle size of 20 m. The experiments were complemented with model development in the frame work of plasticity and viscoelasticity theories. Comparison between the theory and data obtained show that the models developed describe very well the main features of the behavior observed in the range of pressure and strain rates considered.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 2005
- Accession Number
- ADA431026
Entities
People
- Nicolaie D. Cristescu
- Oana Cazacu
Organizations
- University of Florida