日本金属学会誌

J. Japan Inst. Metals, Vol. 67, No. 4 (2003),
pp. 201-204

Strength-Improvement of Carbon-Fiber-Reinforced-Plastics by Electron-Beam-Irradiation

Akihiro Mizutani1,, Norihito Motai1,\footnotemark[1], Kazuya Oguri2, Akira Tonegawa2 and Yoshitake Nishi1,

1Department of Materials Science, Tokai University, Hiratsuka 259-1292
2Department of Physics, Tokai University, Hiratsuka 259-1292

Abstract:

Carbon fiber reinforced plastics (CFRP) have been applied as high-strengthened light structural materials in the fields of aerospace and rapid tranport engineering. In order to enhance bending fracture stress, the electron beam (EB) irradiation was homogeneously performed. EB-irradiation enhanced bending fracture stress and fracture strain of CFRP\@. EB-irradiation also slightly enhanced bending elasticity of CFRP. Based on mixture law, we concluded that EB strengthening of CFRP was mainly dominated by ductility enhancement of epoxy resin and elasticity of carbon fiber.


(Received Decmber 2, 2002)

Keywords:

carbon fiber reinforced plastics, electron beam, bending, fracture, stress-strain curves, law of mixture


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