Constitutive Modeling of Glass at Extreme Pressure and Loading Rates
Abstract
Constitutive Modeling of Glass at Extreme Pressure and Loading Rates PI: Michael Ortiz Summary: To date, no model exists that predicts the response of glass under extreme conditions of pressure, temperature and rate of deformation, which hampers efforts to evaluate the true potential of glass for armor applications. The proposed work addresses this gap and is concerned with the development of a finite-deformation model of the inelasticity of glass under general multiaxial deformation histories, including irreversible dilation and densification, mixed states and microstructure, hysteresis and dissipation, rate-dependency and thermal softening, for use in terminal ballistics simulations. We envision two main tasks under the project: i) Formulation of the continuum constitutive model and validation for soda lime glass using archival experimental data and data supplied by Keith Nelson (MIT); ii) Validation and calibration of the model for fused silica and soda lime glass using atomic-level models.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 08, 2016
- Source ID
- N000141512453
Entities
People
- Michael Ortiz
Organizations
- California Institute of Technology
- Office of Naval Research
- United States Navy