Meso-Scale Experimental & Numerical Studies for Predicting Macro-scale Performance of Advanced Reactive Materials (ARMs)
Abstract
Our collaborative, multi-disciplinary and multi-investigator research project, combines numerical simulations with time-resolved impact experiments, to determine the meso-scale mechanisms of impact-initiated reactions in Ti-Al-B based reactive materials in the form of compacts of powders of different sizes and morphologies. The major goal is to delineate how processes of localized deformation and flow, or fracture and fragmentation, create the dispersion and mixing of reactants and provide the thermal and mass transport resulting in highly exothermic Ti and B intermetallic reaction and/or oxidation reaction (Al or B). The time sequence of events associated with reaction initiation as well as subsequent interactions with the external environment are also being determined. More specifically, the influence of material-inherent elastic/plastic properties and reactant configuration (e.g., porosity, morphology, spacing, distribution, etc., created from a library of microstructures) on meso-scale mechanistic processes and the resulting macro-scale performance is being established.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2015
- Accession Number
- ADA623037
Entities
People
- Arun Gokhale
- Ashok Gurumurthy
- Jason Quenneville
- Jennifer Breidenich
- Manny Gonzales
- Naresh Thadhani
Organizations
- Georgia Tech Research Corporation