NASA SBIR 2004 Solicitation

FORM B - PROPOSAL SUMMARY


PROPOSAL NUMBER: 04 A1.02-8809
SUBTOPIC TITLE: Aviation Safety and Security: Fire, Icing and Propulsion-Safe and Secure CNS Aircraft Systems
PROPOSAL TITLE: In Situ Guided Wave Structural Health Monitoring System

SMALL BUSINESS CONCERN (Name, E-mail, Mail Address, City/State/Zip, Phone)
Intelligent Automation, Inc.
15400 Calhoun Drive, Suite 400
Rockville, MD 20855-2785
(301)294-5200

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
George Zhao
xzhao@i-a-i.com
15400 Calhoun Drive, Suite 400
Rockville, MD 20855-2785
(301)294-5232

TECHNICAL ABSTRACT (LIMIT 200 WORDS)
Corrosion and fatigue induced metal-loss and cracks are common problems for missiles and aircraft structures. A wide range of field conditions such as humidity, temperature, stress, cathode potential, and coating conditions, etc. all contributes to the electrochemical reaction between the incipient corrosive agent molecule and the structural metal matrix. The weakened inter-atomic force leads to the material loss, pits or crack growth and eventually structural failure.

We propose a new approach to detect and characterize the corrosion and cracks in missile and aircraft structures. The technique consists of very small, low cost guided wave leave-in-place health monitoring sensors known as piezo-disks, innovative Correlation Analysis Technique (CAT) for fast defect sizing and localization, and a miniaturized local computing device with data acquisition and processing capabilities and wireless module for remote monitoring. It is envisioned the total cost of this system will be less than $1500.

POTENTIAL NASA COMMERCIAL APPLICATIONS (LIMIT 100 WORDS)
The ability to detect and characterize the corrosion and crack in an early and accurate manner is critical for reducing cost and improving safety for many NASA systems such as propulsion system, aircraft frames and wings, etc. At the end of Phase 2, we will have a small, light weight, low cost, low power consumption and robust system with both hardware and software for defect detection and localization.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (LIMIT 100 WORDS)
In-situ health monitoring and fault diagnosis is equally important for many military and commercial systems such as aircraft, automobiles, trains, home appliances, nuclear reactors, etc. The system can either perform continuous monitoring for the critical high strength components or switch on-off when needed. We expect the market for this system to be at least 10 million dollars.