NASA STTR 2006 Solicitation


PROPOSAL NUMBER: 06-2 T8.01-9912
RESEARCH SUBTOPIC TITLE: Manufacturing Technologies for Human and Robotic Space Exploration
PROPOSAL TITLE: Post Process Characterization of Friction Stir Welded Components

NAME: Luna Innovations Incorporated NAME: University of Alabama, Huntsville
STREET: 1 Riverside Circle, Suite 400 STREET: 300 Sparkman Drive, VBRH E12
CITY: Roanoke CITY: Huntsville
STATE/ZIP: VA  24016 - 4962 STATE/ZIP: AL  35899 - 0001
PHONE: (540) 552-5128 PHONE: (256) 824-2657

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Mark J McKenna

Expected Technology Readiness Level (TRL) upon completion of contract:

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
Luna Innovations Incorporated proposes in this STTR Phase II project to continue development and validation of Luna's amplitude-dependent, nonlinear ultrasonic inspection technique applied to friction stir welded (FSW) components. The technique was successfully demonstrated in the Phase I project on samples made from aluminum-lithium alloy 2195. The proposed Phase II project will focus on refining the ultrasonic hardware and software needed to implement the technique on materials and weld geometries with near-term application in support of the Constellation launch vehicle development program. A multi-channel sensor implementation is planned. Luna's results will be compared to conventional NDE techniques currently used; this testing will be conducted primarily by collaborators at the University of Alabama – Huntsville (UAH). The project will also include a review of state-of-the-art NDE techniques applied to FSW joints and early planning for comprehensive probability of detection experiments needed to fully qualify the new technique.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
The primary NASA application is post process, quality assurance inspection of friction stir welds of fuel tank and other structural components for the Constellation program vehicles.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
Commercial applications of the technique include evaluation of FSW joints in aging aircraft, FSW bonds in nuclear waste storage containers, and FSW joints in marine and ferry structural applications. Friction stir welding is also increasingly being used to create suspension components and wheel rims for the automotive industry.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Earth-Supplied Resource Utilization
Launch and Flight Vehicle
Sensor Webs/Distributed Sensors

Form Generated on 01-28-08 15:27