TY - JOUR
T1 - Interlaminar shear properties of composite insulation systems for fusion magnets at cryogenic temperatures
AU - Shindo, Yasuhide
AU - Takeda, Tomo
AU - Narita, Fumio
AU - Miura, Masaya
AU - Watanabe, Shinya
AU - Koizumi, Norikiyo
AU - Idesaki, Akira
AU - Okuno, Kiyoshi
PY - 2010/1
Y1 - 2010/1
N2 - This paper reports the cryogenic interlaminar shear properties of composite insulation systems for the superconducting magnet coils in the International Thermonuclear Experimental Reactor (ITER). Short beam shear tests were performed at room temperature, liquid nitrogen temperature (77 K) and liquid helium temperature (4 K) on three insulation systems consisting of woven glass fiber reinforced plastic (GFRP) composites with different polymer resins and polyimide films, and the dependence of their apparent interlaminar shear strength on the temperature and the polymer resins was discussed. A detailed observation of failed specimens was made to verify the failure mechanisms. Insulation systems subjected to gamma irradiation at room temperature were also considered, and the effect of irradiation on the cryogenic interlaminar shear properties was examined.
AB - This paper reports the cryogenic interlaminar shear properties of composite insulation systems for the superconducting magnet coils in the International Thermonuclear Experimental Reactor (ITER). Short beam shear tests were performed at room temperature, liquid nitrogen temperature (77 K) and liquid helium temperature (4 K) on three insulation systems consisting of woven glass fiber reinforced plastic (GFRP) composites with different polymer resins and polyimide films, and the dependence of their apparent interlaminar shear strength on the temperature and the polymer resins was discussed. A detailed observation of failed specimens was made to verify the failure mechanisms. Insulation systems subjected to gamma irradiation at room temperature were also considered, and the effect of irradiation on the cryogenic interlaminar shear properties was examined.
KW - A. Composites
KW - C. Mechanical properties
KW - F. Fusion magnets
KW - F. Structural supports
KW - F. Superconducting magnets
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U2 - 10.1016/j.cryogenics.2009.10.006
DO - 10.1016/j.cryogenics.2009.10.006
M3 - Article
AN - SCOPUS:72449170466
SN - 0011-2275
VL - 50
SP - 36
EP - 42
JO - Cryogenics
JF - Cryogenics
IS - 1
ER -