Novel Analytical Methods for Sandwich Core Termination Features

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,918.00
Award Year:
2009
Program:
SBIR
Phase:
Phase I
Contract:
N68335-09-C-0224
Award Id:
92618
Agency Tracking Number:
N092-098-0291
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
750 Old Hickory Blvd, Building 2, Suite 270, Brentwood, TN, 37027
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
128193997
Principal Investigator:
Robert Tryon
Chief Technology Officer
(615) 372-0299
adey@vextec.com
Business Contact:
Loren Nasser
President, CEO
(615) 372-0299
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.

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