Computational and Analytical Modeling of Advanced Energetic Materials: Reactive Metamaterials for Controllable Output
Abstract
The proposed effort will use state of the art models that employ real equation of state and, high order accuracy numerical methods mounted on parallel computers, to carry out multi materials simulations of advanced energetic materials of interest to the US Air Force. The focus will be the study of energetic materials stimulus and processes that lead to controllable explosive output, and configurations (dubbed "Reactive Metamaterials") that can be manufactured and tested by experiment. Shock and detonation propagation through arrays of inert and reactive particles, embedded in a reactive matrix material will be studied to show how local resonances, related to acoustic band gaps in the shocked regions, may be used to control energetic output. High surface area and low volume geometries will be considered for materials with two initial components. The effort will improve understandings of how to enhance mixing in the post shock regions, and energy partitioning including energy storage, and absorption as a function of shock input stimulus. We plan to develop a preliminary design path for the specification of initially two component energetics materials, that exhibits different energetic outputs based on the mode of initiation. Improvements to state of the art numerical methods, that include interface tracking and equation of state will be carried out as needed, in service to the modeling goals. The effort will support the training of PostDoctoral and or Ph.D. level graduate students in advanced numerical methods and modern parallel computing, with specialization in reactive flows and large deformation, multi material mechanics.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 14, 2022
- Source ID
- FA95501910204
Entities
People
- D. Scott Stewart
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Florida