Advanced Fasteners for Low Cost Airframe Assembly and Repair

Award Information
Agency: Department of Defense
Branch: Office of the Secretary of Defense
Contract: N/A
Agency Tracking Number: 36597
Amount: $95,674.00
Phase: Phase I
Program: SBIR
Awards Year: 1997
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Navmar Applied Sciences Corp.
65 West Streeet Road, Suite, B-104, Warminster, PA, 18974
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Carl T. Calianno
 (215) 675-4900
Business Contact
Phone: () -
Research Institution
N/A
Abstract
This SBIR proposes the development of the 3/16 inch diameter "Wing-It" blind fastener. This effort will include fastening both aluminum and composite sheet material. The technical objective is to demonstrate a low-cost fastener for future aircraft as an alternative to production fasteners. The "Wing-It" fastener distributes the load in the joint over a much larger area than conventional fasteners. This loading characteristic minimizes the stresses at the hole in the joined material. The small tolerances for the fastener and hole dimensions, which are required to achieve fatigue life in current aircraft applications, and are costly to achieve, will not be required with the "Wing-It". In addition to saving money due to relaxed tolerances, fewer "Wing-It" fasteners will be required which will also save money. This task will include a structural analysis to help design test models. A series of tensile, shear, and fatique tests, in compliance with Navy Qualified Parts List qualification requirements and procedures, will be conducted to compare the performance of the "Wing-It" to qualified aluminum sleeve blind rivet, M7885/2-6-03. This fastener has potential application in military and commercial aviation, architectural, marine, and automotive industries.

* information listed above is at the time of submission.

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