Advanced NDI/E Tool for Residual Stress Management

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-16-C-0140
Agency Tracking Number: N052-120-0300a
Amount: $1,199,985.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N05-120
Solicitation Number: 2005.2
Solicitation Year: 2015
Award Year: 2016
Award Start Date (Proposal Award Date): 2016-02-01
Award End Date (Contract End Date): 2018-02-01
Small Business Information
12350 Universal Drive, Taylor, MI, 48180
DUNS: 362322674
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 William Boyer
 (734) 946-0974
Business Contact
 Michael Brauss
Phone: (734) 946-0974
Research Institution
Fatigue properties of metallic aerospace structures are improved significantly by cold working to impart favorable compressive residual stresses (RS) at and near the surface. In Phases I and II, Proto designed and developed a first generation x-ray diffraction (XRD) based NDI/E tool to measure RS distributions surrounding cold-worked holes in aerospace structures. Subsequently, Proto self-funded and developed an improved second-generation RS measurement (RSM) tool XRD. These tools work well on aircraft skins and exposed structures where the radii of curvature are large. However, those tools are quite limited in their ability to reliably measure RS on parts with complex geometries and to access tight and confined spaces of typical structures. The proposed third generation RSM tool is designed to overcome both of those limitations by miniaturizing the x-ray source, optimizing the detectors, and refining the probe design. The final RSM tool will be computer controlled, handheld and/or hand-placeable, and safe with integrated shielding. It will have a detachable small display on the probe for real time RS readout and will store measurements in a database for future analysis and tracking. The system will be small, lightweight, portable, rugged, and operate on 110 VAC for use aboard ship and in depots.

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

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