Characterization of Soda-Lime Glass by Confined Compression Testing with Numerical Validation
Abstract
This report describes two different techniques used to characterize intact and damaged soda-lime glass at pressures up to tilde2 GPa: triaxial compression and confined sleeve. The results of the characterization experiments - for intact and damaged glass as a function of confinement pressure - are described; the result are interpreted in terms of two pressure-dependent constitutive models. Drucker-Prager and Mohr-Coulomb. An observation is that the slopes of the two models appear to be independent of the degree of damage (intact, pre-damaged and severely damaged specimens). It is also observed that there is a maximum strength for the damaged glass, i.e., there is a cap on the strength. The Drucker-Prager model is then used to compute the position-time and projectile residual length versus time for impact of tungsten-alloy, long-rod projectiles into glass targets, using the constitutive constants inferred from the characterization experiments, although the zero-pressure value has to be considerably lower to represent highly damaged (comminuted) glass.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2010
- Accession Number
- AD1216703
Entities
People
- Arthur E. Nicholls
- Charles E. Jr Anderson
- Kathryn A. Dannemann
- Rory P. Bigger
- Sidney Chocron
Organizations
- Southwest Research Institute