Dynamic Evaluation of Experimental Integral Fuel-Tank Sealants. Part 1
Abstract
A research program has been instituted to investigate and evaluate experimental integral fuel-tank sealant materials under laboratory conditions which closely simulate those of actual aircraft integral fuel tanks during flight. As part of this effort, a unique facility has been designed and fabricated for the evaluation of a variety of joint configurations. The facility consists primarily of two separate biaxial stress machines in which temperature, pressure, and vibrational strain can be programmed for automatic operation. Specimens can be strained longitudinally and torsionally to simulate actual flight conditions. Frequency and amplitude of the strains can be independently set and recorded. Simulated fuel-tank and environmental pressure can also be adjusted independently. Early difficulties with sealant-failure detection and with undesirable thermal strains have been largely resolved and preliminary evaluations of continuous-fillet specimens utilizing two sealant materials have been performed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1979
- Accession Number
- ADA088573
Entities
People
- Lee E. Isom