Increased Capability and Interface for Computational Code for Implosion: Parameters, Procedures, Constitutive Model Calibration & Modeling GUI

Award Information
Agency:
Department of Defense
Amount:
$750,000.00
Program:
SBIR
Contract:
N00014-13-C-0232
Solitcitation Year:
2012
Solicitation Number:
2012.1
Branch:
Navy
Award Year:
2013
Phase:
Phase II
Agency Tracking Number:
N121-091-0723
Solicitation Topic Code:
N121-091
Small Business Information
Weidlinger Associates, Inc.
40 Wall Street 18th Floor, New York, NY, 10005-1304
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
000000000
Principal Investigator
 Najib Abboud
 Principal
 (212) 367-3074
 najib.abboud@wai.com
Business Contact
 Susan Bezanson
Title: Contracts Manager
Phone: (202) 649-2444
Email: susan.bezanson@wai.com
Research Institution
N/A
Abstract
In Phase I, WAI performed an assessment of the critical deficiencies in the Aero-F/DYNA3D suite of physics-based computational analysis tools for implosion applications. This assessment resulted in the identification of three specific areas for improvement: 1. Material constitutive modeling and calibration in DYNA3D; 2. Modeling capabilities for composite implodables; 3. Enhancements to the functionality and usability of X-FEM in DYNA3D. This Phase II proposal addresses these three areas through the following developments. First, an improved constitutive model will be implemented in DYNA3D the WAI damage model which addresses the deficiencies in the currently available material models. A new software mc^2: Material Constitutive Calibrator will be developed in parallel for automated calibration of this (and other) model(s). Second, a new element the WAI composite element will be implemented in DYNA3D for accurate calculation of the stress field in composite implodable and therefore accurate assessment of the material failure criterion. Calibration of this element for material failure will also be performed in mc^2. Lastly, the X-FEM capabilities in DYNA3D will be improved through linkage with WAI damage model and removal of ad hoc user input parameters that make calibration problematic. Calibration will be similarly performed using the mc^2 software.

* information listed above is at the time of submission.

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