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BORON EPOXY AIRCRAFT REPAIR STUDY



Evaluation of Boron/Epoxy Doublers for reinforcement of commercial aircraft metallic structures

For a number of years, researchers have been developing a technology for repair and reinforcement of airplane structures using bonded boron/epoxy doublers. This technology has been successfully used on military airplanes such as reinforcement of the F-111 wing pivot fitting, repair of stress corrosion on the C-130, and fatigue cracking on the Mirage El and Macchi airplanes. The concept involves bonding a boron/epoxy doubler over the metallic structure containing damage.

The boron/epoxy doubler reinforcement concept has sparked interest by commercial airlines who are always looking for quicker, more efficient repair techniques. Potential commercial airplane applications of this technology include repairs to damaged secondary and primary structure, and as a preventive stress reliever modification to a problem structural item in the fleet.

The Boeing Company was contracted by Textron Specialty Materials, Inc. through Boeing Technology Services, contract 6-1171-10A3397R4, to develop a test program which would provide structural data on bonded boron/epoxy repairs to metallic aircraft structures. We offer this report in two formats for your convenience. Click below to read either.

Boeing Study in HTML Format
Boeing Study in PDF Format

 

Boron/Epoxy Repair
Boron Epoxy Doublers
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SPECIALTY MATERIALS, INC.
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