Radiation and temperature effects on the time-dependent response of T300/934 graphite/epoxy. Interim report No. 69
Technical Report
·
OSTI ID:5219307
A time-dependent characterization study was performed on T300/934 graphite/epoxy in a simulated space environment. Creep tests on irradiated and nonirradiated graphite/epoxy and bulk resin specimens were carried out at temperatures of 72 and 250 F. Irradiated specimens were exposed to dosages of penetrating electron radiation equal to 30 years exposure at GEO-synchronous orbit. Radiation was shown to have little effect on the creep response of both the composite and bulk resin specimens at 72 F while radiation had a significant effect at 250 F. A healing process was shown to be present in the irradiated specimens where broken bonds in the epoxy due to radiation recombined over time to form cross-links in the 934 resin structure. An analytical micromechanical model was also developed to predict the viscoelastic response of fiber reinforced composite materials. The model was shown to correlate well with experimental results for linearly viscoelastic materials with relatively small creep strains.
- Research Organization:
- Virginia Polytechnic Inst. and State Univ., Blacksburg (USA)
- OSTI ID:
- 5219307
- Report Number(s):
- N-88-18646; NASA-CR-182603; NAS-1.26:182603; CCMS-88-02; VPI-E-88-5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Space environmental effects on graphite-epoxy compressive properties and epoxy tensile properties
Effects of cure temperature, electron radiation, and thermal cycling on P75/930 composites
Effects of space radiation on a chemically modified graphite-epoxy composite material. Interim report
Technical Report
·
Wed Jul 01 00:00:00 EDT 1987
·
OSTI ID:6096274
Effects of cure temperature, electron radiation, and thermal cycling on P75/930 composites
Technical Report
·
Fri Nov 30 23:00:00 EST 1990
·
OSTI ID:6065936
Effects of space radiation on a chemically modified graphite-epoxy composite material. Interim report
Technical Report
·
Wed Oct 01 00:00:00 EDT 1986
·
OSTI ID:6856575
Related Subjects
36 MATERIALS SCIENCE
360605* -- Materials-- Radiation Effects
BEAMS
CARBON FIBERS
COMPOSITE MATERIALS
CREEP
DATA
DOCUMENT TYPES
ELECTRON BEAMS
EPOXIDES
EXPERIMENTAL DATA
FIBERS
INFORMATION
IRRADIATION
LEPTON BEAMS
MATERIALS
MECHANICAL PROPERTIES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
PARTICLE BEAMS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL RADIATION EFFECTS
POLYMERS
PROGRESS REPORT
RADIATION EFFECTS
RESINS
TEMPERATURE EFFECTS
TIME DEPENDENCE
360605* -- Materials-- Radiation Effects
BEAMS
CARBON FIBERS
COMPOSITE MATERIALS
CREEP
DATA
DOCUMENT TYPES
ELECTRON BEAMS
EPOXIDES
EXPERIMENTAL DATA
FIBERS
INFORMATION
IRRADIATION
LEPTON BEAMS
MATERIALS
MECHANICAL PROPERTIES
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
PARTICLE BEAMS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL RADIATION EFFECTS
POLYMERS
PROGRESS REPORT
RADIATION EFFECTS
RESINS
TEMPERATURE EFFECTS
TIME DEPENDENCE