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Novel Analytical Methods for Sandwich Core Termination Features

Award Information

Department of Defense
Award ID:
Program Year/Program:
2009 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
VEXTEC Corporation
PO Box 2287 Bldg. 2, Suite 270 Brentwood, TN 37024-
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2009
Title: Novel Analytical Methods for Sandwich Core Termination Features
Agency / Branch: DOD / NAVY
Contract: N68335-09-C-0224
Award Amount: $79,918.00


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.

Principal Investigator:

Robert Tryon
Chief Technology Officer

Business Contact:

Loren Nasser
President, CEO
Small Business Information at Submission:

750 Old Hickory Blvd, Building 2, Suite 270 Brentwood, TN 37027

EIN/Tax ID: 582529317
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No