Effect of jet-fuel exposure on advanced aerospace composites, II: Mechanical properties. Final report, May-December 1989
The sensitivity of several advanced aerospace composite materials to military jet fuel, JP-4, was investigated in this study. The following commercially available fiber/matrix prepreg materials were used in this investigation: AS-4/3501-6; IM7/8551-7A; IM7/977-2 (1377-2T); IM7/5250-4; IM8HTA; and AS-4/PEEK(APC-2). The materials were chosen as representative state-of-the-art materials in their classes of standard epoxy, toughened epoxy, toughened BMI, and thermoplastic matrix composites respectively. The materials were processed into (+ or - 45)2S, (0)12T laminates using the manufacturer's recommended process cycle and standard quality assurance checks were performed on the panels. Standard geometry coupons were fabricated from the panels and divided into a control set and test set. The test coupons were immersed in JP-4 in a sealed pressure vessel at 180 F. The weight gain was recorded as a function of the square root of time and the jet fuel was exchanged each time the coupon weight was recorded. In general, the thermoset matrix composites did not pick-up significant levels of fuel in any lay-up examined; while the thermoplastics did absorb JP-4. The amount of JP-4 absorbed by the thermoplastic matrix composites was dependent on the lay-up. After 1680 hours of total exposure time the mechanical properties of the coupons were evaluated.
- Research Organization:
- Air Force Wright Research and Development Center, Wright-Patterson AFB, OH (USA)
- OSTI ID:
- 6012445
- Report Number(s):
- AD-A-227529/5/XAB; WRDC-TR--90-4064
- Country of Publication:
- United States
- Language:
- English
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360603* -- Materials-- Properties
ABSORPTION
AEROSPACE INDUSTRY
AMPLIFICATION
COMPOSITE MATERIALS
DOCUMENT TYPES
FABRICATION
FUELS
GAIN
GEOMETRY
INDUSTRY
JET ENGINE FUELS
MATERIALS
MATHEMATICS
MATRIX MATERIALS
MECHANICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
PROGRESS REPORT
QUALITY ASSURANCE
REINFORCED MATERIALS
REINFORCED PLASTICS
RESINS
SENSITIVITY
SORPTIVE PROPERTIES
SURFACE PROPERTIES
SYNTHETIC MATERIALS
THERMOPLASTICS
WEIGHT