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U.S. Department of Energy
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Baseline tensile tests of composite materials for LDEF (Long duration exposure facility) exposure

Technical Report ·
OSTI ID:6359660
Tensile specimens of five graphite fiber reinforced composite materials were tested at room temperature to provide baseline data for similar specimens exposed to the space environment in low-Earth orbit on the NASA Long Duration Exposure Facility. All specimens were 4-ply (+ or - 45 deg)s layups; at least five replicate specimens were tested for each parameter evaluated. Three epoxy-matrix materials and two polysulfone-matrix materials, several fiber volume fractions, and two sizes of specimen were evaluated. Stress-strain and Poisson's ratio-stress curves, ultimate stress, strain at failure, secant modulus at 0.004 strain, inplane shear stress-strain curves, and unidirectional shear modulus at .004 shear strain are presented.
Research Organization:
National Aeronautics and Space Administration, Hampton, VA (USA). Langley Research Center
OSTI ID:
6359660
Report Number(s):
N-87-20386; NASA-TM-89069; NAS-1.15:89069
Country of Publication:
United States
Language:
English