A Combined Microscale High Speed Optical Imaging and High Speed Raman Imaging Platform to Measure Dynamic Interface Stress Tensor Coupled with Interface Chemistry during High Strain Rate Loading
Abstract
Integrated Test System for Investigating the Dynamic Response of Energetic and Related Composite Materials Under the Influence of Mechanical and Acoustic Insults. In recent years, energetic materials and other particulate composites have garnered considerable research attention due to their centrality in defense applications ranging from munitions design and health monitoring to IED detection and defeat. Despite this research focus, the mechanics and thermomechanics of particulate composite materials are quite poorly understood. The current proposal seeks to help ll this technical gap through the acquisition and assembly of a unique test system capable of examining the dynamic response of particulate composites under the in uence of mechanical and acoustic insults. The proposed integrated test system, consisting of an acoustic source array, a 6-axis hydraulic shaker (currently available), an acoustic holography array, a scanning laser Doppler vibrometer (currently available), a dynamic mechanical analyzer, and a high-resolution thermography system, will speci cally allow the PIs to enhance their ongoing DoD-funded research e orts, which are aimed at: (i) identifying the origins of hot-spot formation in energetic materials, particularly outside of the shock-induced reaction regime (AFOSR Grant FA9550-15-1-0102) and (ii) characterizing the in uence of acoustic and electromagnetic waves on the dynamic response of energetic materials and other related composites (ONR Grant N00014-10-1-0958). In addition, the proposed system will allow the PIs to extend their research into emerging areas with DoD relevance, including the design and characterization of munitions, munition systems, and novel material systems (e.g., tunable acoustic metamaterials), stand-o structural health monitoring, and basic science investigations of coupled thermoelasticity. Finally, the proposed equipment will expand the research capability of the PIs graduate and undergraduate research assistants, and enhance the educational experience of the Purdue student body through integration with existing dual-level and advanced courses in the technical areas of acoustics and vibration.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 23, 2016
- Source ID
- N000141613029
Entities
People
- Jeffrey F. Rhoads
Organizations
- Office of Naval Research
- United States Navy
- University of Virginia