Physics-Based Multi-Scale Modeling of Shear Initiated Reactions in Energetic and Reactive Materials
Abstract
A critical Army mission is to improve predictive technologies for the development of future weapon systems. Shear initiated reactions are an important aspect of lethality, survivability, and vulnerability considerations, i.e., the increased lethal effects due to shear localization of reactive materials, reactive armor applications, and shear-induced reactions in munitions due to fragment impact. Present computational capabilities in continuum mechanics codes used by Army designers do not possess the capability to properly simulate these events, and therefore, cannot be used effectively to develop advanced weapons concepts. In this report, we discuss the development of a multi-scale framework to simulate and predict shear initiated reactions in energetic and reactive materials. First, we implemented the framework into an Eulerian wave propagation code. Then, using the energy conserving version of the Dissipative Particle Dynamics Method (DPDE) as the mesoscale method, we developed a subgrid model to incorporate mesoscale output into the continuum level and used an existing localization model at the continuum level.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2009
- Accession Number
- ADA494860
Entities
People
- John K. Brennan
- Linhbao Tran
- Müge Fermen-coker
Organizations
- United States Army Research Laboratory