Novel Analytical Methods for Sandwich Core Termination Features

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-09-C-0224
Agency Tracking Number: N092-098-0291
Amount: $149,619.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2009
Solicitation Topic Code: N092-098
Solicitation Number: 2009.2
Small Business Information
750 Old Hickory Blvd, Building 2, Suite 270, Brentwood, TN, 37027
DUNS: 128193997
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Robert Tryon
 Chief Technology Officer
 (615) 372-0299
 adey@vextec.com
Business Contact
 Loren Nasser
Title: President, CEO
Phone: (615) 372-0299
Email: Lnasser@vextec.com
Research Institution
N/A
Abstract
The proposed project will develop a structural analysis framework incorporating high performance composite design methodologies to predict the reliability of sandwich termination features. The sandwich core termination region offers many challenges to properly design and verify its structural integrity. Complexities such as numerous interacting failure modes and sensitivity to manufacturing variations make designing and analyzing the core termination region costly and time consuming. The work proposed by VEXTEC under this SBIR project will produce a composite damage propagation prediction tool. It will explicitly link state-of-the-art laminate design techniques with the mechanistic failure models. Phase I will focus on delamination as the most significant damage mode and the mechanism will be modeled using a virtual crack closure technique (VCCT). During the Phase I Option, the global local analysis will be combined with probabilistic methods to allow for consideration of manufacturing variability throughout the structure. Phase I will show proof that structural analysis and design methodologies for bond integrity between the face sheet and the core of composite sandwich structures is readily achievable.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government