Development of High-Fidelity Techniques to Model Impact Flash and Post-Impact Thermal Signature Prediction and Support Kill Assessment

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0006-07-C-7745
Agency Tracking Number: B063-047-0178
Amount: $99,926.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2006
Solicitation Topic Code: MDA06-047
Solicitation Number: 2006.3
Small Business Information
DUNS: 807454640
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Elvis Dieguez
 Principle Investigator
 (703) 212-8870
Business Contact
 David Kang
Title: Director of Strategic Initiatives
Phone: (703) 212-8870
Research Institution
Initial implementations of the United States missile defense system utilize two primary sensors for kill assessment: RADAR and infra-red (IR) sensors. The post-impact signatures must be accurately modeled to support kill assessment, sensor design, signal processing, and feature extraction. The post-impact RADAR and IR signatures will be, to first-order, governed in the first few seconds by the distribution of particle sizes and densities generated by the fragmentation dynamics, and the kinetic to thermal energy conversion resulting from the hypervelocity impact. We propose to determine the feasibility of using Hybrid Particle-Element (HPE) numerical methods to accurately model both fragmentation and thermofluid dynamics resulting from hypervelocity impacts. The unique Hamiltonian method used in the HPE technique is well suited for simulating large deformations in fragmented media and representing strength effects in a Lagrangian frame. It is not subject to the numerical simulation difficulties associated with the use of pure particle codes, in particular tensile instability and numerical fracture. Our proposed research will demonstrate the potential of HPE methods to offer significant improvements in the numerical simulation of post-impact signatures for MDA applications.

* information listed above is at the time of submission.

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