Nonmetals Test And Evaluation. Delivery Order 0006: Support for Aging Aircraft Technology Transition
Abstract
The purpose of this effort was to assist the transition of several technologies developed by AFRL/MLSA to Air Force maintenance units. Work on three specific technologies was conducted: (1) sol-gel prebond surface preparations, (2) development of a composite materials database for the design of composite patches and (3) documentation of material and processing repair procedures. The bulk of the effort for this program was on Tasks 1 and 2. Very little work was requested by AFRL/MLSA for Task 3. Sol-gel prebond surface preparations are of interest to Air Force maintenance organizations in order to provide easier and safer prebond surface preparations for aluminum structure as compared to currently used processes. UDRI evaluated materials, processes, and refined processing windows to ease transition of the sol-gel surface preparations to maintenance organizations across the Air Force. The sol-gel work consisted of a series of smaller projects aimed at specific topics of interest from maintenance organizations. Work on the composite materials database development centered on determining vacuum cure cycles for commonly used graphite/epoxy prepreg systems, performing mechanical testing on lower-temperature, vacuum-cured composite materials and calculating B-basis design allowables for these materials when processed under on-aircraft repair conditions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2005
- Accession Number
- ADA448095
Entities
People
- Daniel B. Mccray
- Jeffery A. Smith
- Paul K. Childers
Organizations
- University of Dayton