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AssigneeToray Industries, Inc.
InventorsAkira Nishimura, Takashi Kobayashi, Ikuo Horibe, Kiyoshi Homma
Estimating the term…
A sheet-shaped carbon fiber base material is made up from reinforcing carbon fiber and metal wire integrally formed into a carbon fiber base material which may be a a woven fabric, a tow sheet and a prepreg. The volume fraction of metal in the sheet-shaped reinforcing carbon fiber base material is no more than 4% of the carbon fiber. A laminate may also be formed from the sheet-shaped carbon fiber material, where the reinforcing carbon fiber and the metal wire are laid-up in such a way that the metal wire insertion positions are mutually different. Also disclosed is a method of detecting the number of plies in a laminate that includes non-destructively sensing with a detector the presence of metal wire in a laminate of plies of a sheet-shaped carbon fiber base material made up of reinforcing carbon fiber and metal wire integrally formed to make the sheet-shaped carbon fiber laminate material and determining the number of the plies in the laminate based on the metal wires detected.
A sheet-shaped carbon fiber base material, comprising reinforcing carbon fiber and metal wire integrally formed into a carbon fiber base material selected from the group consisting of a woven fabric, a tow sheet and a prepreg, the volume fraction of metal in said sheet-shaped reinforcing carbon fiber base material being no more than 4% in terms of the carbon fiber.
A laminate comprising a sheet-shaped carbon fiber material comprising reinforcing carbon fiber and metal wire integrally formed into said sheet-shaped carbon fiber base material, said sheet-shaped carbon fiber base material being selected from the group consisting of a woven fabric, a tow sheet and a prepreg, where the volume fraction of metal in said sheet-shaped reinforcing carbon fiber base material being no more than 4% in terms of the carbon fiber, and said reinforcing carbon fiber and said metal wire are laid-up in such a way that the metal wire insertion positions are mutually different.
A method of detecting the number of plies in a laminate, comprising non-destructively sensing with a detector the presence of metal wire in a laminate of plies of a sheet-shaped carbon fiber base material comprising reinforcing carbon fiber and metal wire integrally formed into said sheet-shaped carbon fiber laminate material and determining the number of the plies in the laminate of the sheet-shaped carbon fiber base material based on the metal wires detected.
A strain detection method for structures comprising a fiber reinforced plastic material formed from a reinforcing carbon fiber base material comprising reinforcing carbon fiber and metal wire integrally formed into said fiber reinforced plastic material, said method comprising detecting an amount of strain arising in the structure based on a change in resistance of the metal wire.
Dependencies are inferred from the claim text.