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Military Engineering Overview 6.1 Portfolio Management Review 9 June 11. David A. Horner, P.E., Ph.D. Technical Director , Military Engineering US Army Corps of Engineers Engineer Research and Development Center Vicksburg, MS. Military Engineering. Government Labs. Warfighter. Academia.
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David A. Horner, P.E., Ph.D.
Technical Director, Military Engineering
US Army Corps of Engineers
Engineer Research and Development Center
Developing Solutions Faster Than The Threat Can Adapt
Collaborators - Stakeholders - Partners
Near Surface Physics
High Performance Computational Testbeds
Protection And Maneuver Solutions Faster Than The Threat Can Adapt
Carbon nanotube enhanced composite (multifunctional material)
Micro-scale enhancements for macro-scale performance
Lightweight deployable protection
Bacteria and Food
Maneuver in extreme environments
Objective: Develop theoretical methods to relate macro-scale (engineering) performance to fundamental micro-scale processes.
Particles, Force Chains, and Structure
Provides a key enabling process for the multi-scale approach to analysis of high performance materials
Fiber clump – broken & pulled out
Fibers pulled out
Fibers aligned w/ crack
Micro/Meso-Evaluation of High Performance Material
Objective: To develop a model for ultra high strength Fiber Reinforced Concrete (FRC) subjected to highly dynamic loading conditions.
Methodology for tracking meso-level damage in a high-strain rate environment
Bioreactor setup for pH study
Biostabilization of Soils
Objective: Develop bacterial-based materials for stabilization of soils
And quantify the micro-mechanics of natural particles bonded by well characterized bacterial biopolymers
Identify effective biopolymers & procedures for effective soil stabilization
~5x - 150x
~12.5x - 1000x
MTS Nanoindentation Testing System
Sub-scale Materials Engineering Research Facility
Objective: Analysis of material sub-scale features including the identification and quantification of phases and determination of morphologies, distributions, orientations, interface characteristics, fracture/failure surfaces and measure mechanical properties at the nanoscale
Wavelength Dispersive Spectrometer
Stand-Off Monitoring (New Thrust)
The Challenge: Lack of robust modeling and simulation tools to thoroughly exploit the data collected by traditional infrasound deployments limits intelligence missions in multiple theatres of operation.
Forward Operating Bases
Denied Area Monitoring
Propagation modeling with accurate terrain and meteorological databases
Develop a source physics computational test-bed for modeling and simulation
Exploit unrecognized infrasonic phenomenology and map out strategies to implement automatic target recognition algorithms.
and Relationship to 6.2 Thrust Areas
Scalable Weapons Effects
Near Surface Effects
Austere Entry and Maneuver
Modeling the Behavior of Fiber Reinforced Concrete Under High Rate Loading (FY08-10)
Macroscale Effects of Soils with Microscale Three-Dimensional Distributions of Frequency-Dependent Electromagnetic Properties (FY08-11)
Multi-Scale Modeling of the Structure of Materials for Adaptive Protection (FY08-10)
Dynamic contact mechanics and soil-sensor interaction (ILIR, FY11 – 13)
Prediction of the Engineering Behavior of Granular Media Based on Grain-Scale Contact Properties (FY08-11)
Biopolymer Coating Effects on Particle Micro-Structure (FY09-11)
Inherent Subscale Generation of Strain Rate Effects in High-Performance Concrete (FY08-10)
Development of Ultra Compact Soil Science (ILIR FY09-11)
Genetic Control of EPS Production in Bacterial Soil Stabilizers (FY08-11)
NMR imaging and pore-scale simulation of electrokinetic transport in cementitious materials (FY 10--12)
Fundamental Investigation on Bridging between Macroscale Phenomena and Microscale Performance (FY09-11)
Investigation of dynamic response and energy dissipation mechanisms found in bio-inspired systems (FY 11-13)
Improved Characterization of Chemical Sensing in Complex Surface and Subsurface Environments (FY11-13)
Geo-statistical characterization of micro-structural defects in ammunition steel cases and statistical physics representation of shell-case fragmentation upon detonation via computational simulations and experimental verification (FY 11-13)
Effects of Bonding Agents on Eolian Sediments Suspension (FY10-12)
New Work Units