About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials IX
|
Presentation Title |
Data Mining the Mesoscale to Study Shock Ignition and Reaction Growth in Pressed Energetic Materials |
Author(s) |
Judith Alice Brown, Julia Hartig, Dan S Bolintineanu, Mitchell Wood |
On-Site Speaker (Planned) |
Judith Alice Brown |
Abstract Scope |
The shock to detonation transition (SDT) in many energetic materials is governed by the ignition and growth of chemically reacting hot spots that form due to interaction of the incident shock wave with microstructure features such as internal porosity. Detailed mesoscale simulations of shock propagation in pressed energetic materials are presented to study the effects of morphological features such as pore sizes, spacing, and clustering on hot spot ignition and reaction growth. The features studied range in size from 2-4 pores in various cluster morphologies to ensemble suites of large microstructure domains that encompass many clusters of pores. Full-field predictions of thermodynamic states (temperature, pressure, etc.), reaction progress, and mechanical response (deviatoric stress, plastic strain) for each microstructure are analyzed using high-throughput data mining approaches to discover relationships between microstructure morphology and shock sensitivity across a range of shock pressures. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Other, Powder Materials |