Magnetoelastic Fiber-Filled Appliqué for Detecting Structural Damage

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-07-M-5037
Agency Tracking Number: F071-120-2620
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2007
Solicitation Year: 2007
Solicitation Topic Code: AF071-120
Solicitation Number: 2007.1
Small Business Information
515 Schoolhouse Road, Kennett Sqaure, PA, 19348
DUNS: 066745030
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 William Biter
 President
 (610) 444-2383
 wbiter@gmail.com
Business Contact
 William
Title: President
Phone: (610) 444-2383
Email: wbiter@gmail.com
Research Institution
N/A
Abstract
A new appliqué is proposed consisting of a film filled with stress sensitive magnetic fibers. This film, applied over the structure, can be imaged to measure stress concentration and/or anomalies resulting from an impact. This would be a valuable tool to provide warning of structural distress/damage. This proposal will design the appliqué, evaluate two different readout systems for measuring the strain measurements and select and demonstrate measurements on the selected approach. The appliqué will use polymer filled with small diameter magnetoelastic fibers, with the readout made with either a microwave scanning system based on reconstruction of the stress sensitive dielectric profile or an inductive coupled detector, using the fibers formed into small loops. The Phase 1 will select the most promising of these two advanced readout techniques and also do preliminary experiments, primarily on fill of the magnetic fiber and required stiffness of the appliqué so it can detect and remember the damage.

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

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