Irradiation Effect of 14 MeV Neutron on Interlaminar Shear Strength of Glass Fiber Reinforced Plastics
- National Institute for Fusion Science, Toki, Gifu, 509-5292 (Japan)
- Osaka University, Suita, Osaka, 565-0871 (Japan)
- Iwate University, Ueda, Morioka, 020-8551 (Japan)
- National Institute for Materials Science, Tsukuba, Ibaraki, 305-0047 (Japan)
- Tohoku University, Sendai, Miyagi, 980-8579 (Japan)
- Japan Atomic Energy Research Institute, Nakagun, Ibaraki, 319-1195 (Japan)
Design activity of International Thermonuclear Experimental Reactor clarifies intense neutron streaming from ports for neutral beam injectors. Energy spectrum of the streaming is very wide and 14 MeV neutron and gamma ray are the typical radiations. Large amount of glass fiber reinforced plastics will be used in a superconducting magnet system as an electric insulation material and a support structure, for such organic material is easy to manufacture, and light and cheap. In this report, effects of 14 MeV neutron and gamma ray irradiation on interlaminar shear strength and fracture mode are investigated using G-10CR small specimen of which configuration was proposed as a standard for evaluation of the interlaminar shear strength. A short beam test under three point bending was conducted at room temperature and 77 K. Neutron fluence of 3.91 x 1019 n/m2 was irradiated and the specimens did not show clear degradation of the strength. On the other hand, gamma ray irradiation of 1 MGy made the specimen weaker and 10 MGy caused delamination. Most of the specimens showed both of interlaminar cracking and bending fracture, but some specimens were fractured with irregular shear occurred on the planes connecting loading point and supporting points.
- OSTI ID:
- 20800172
- Journal Information:
- AIP Conference Proceedings, Vol. 824, Issue 1; Conference: Cryogenic engineering conference, Keystone, CO (United States), 29 Aug - 2 Sep 2005; Other Information: DOI: 10.1063/1.2192357; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Interlaminar shear and flexural strength of fiber reinforced plastics at 77 K after room and low-temperature reactor irradiation
EFFECT OF RADIUS OF LOADING NOSE AND SUPPORTS IN SHORT BEAM TEST FIXTURE ON FRACTURE MODE AND INTERLAMINAR SHEAR STRENGTH OF GFRP AT 77 K
Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BENDING
CRACKING
DESIGN
ENERGY SPECTRA
EVALUATION
FIBERGLASS
FRACTURES
GAMMA RADIATION
GLASS
IRRADIATION
ITER TOKAMAK
MEV RANGE
NEUTRON FLUENCE
NEUTRONS
PHYSICAL RADIATION EFFECTS
REINFORCED PLASTICS
SHEAR
SHEAR PROPERTIES
SUPERCONDUCTING MAGNETS