Mitsubishi Heavy Industries Limited

Shunsuke Yoshino

Koichi Hasegawa

Hiroaki Yamaguchi

Kodai Shimono

Takuma Hirai

Toshinobu Muraki

Tomoo Takizawa

Jo Nishimuro

Toshiya Araki

Provided are a composite material structure obtained by joining composite materials with resin-impregnated reinforcing fibers, for which appropriate lightning proofing measures are taken, and a method for manufacturing the composite material structure. The composite material structure includes a first composite material, a second composite material, and a low-conductivity material. The first composite material includes a conductive first reinforcing fiber and a first resin impregnated into the first reinforcing fiber. The second composite material is integrated with the first composite material, and has a conductive second reinforcing fiber and a second resin impregnated into the second reinforcing fiber. The low-conductivity material has an electrical resistance that is lower than that of the first resin and the second resin and a low conductivity that is greater than or equal to the first reinforcing fiber and the second reinforcing fiber, and electrically connects the first reinforcing fiber to the second reinforcing fiber.

Composite material structure and method for manufacturing composite material structure

A repair patch includes a composite material to repair a a repair target of a composite material. The repair patch includes bonding surfaces which face a bonded surface of a counterbored hole formed in the part to be repaired, and are bonded to the counterbored hole; and an opposite surface opposite to the bonding surfaces in a thickness direction. The opposite surface has a curved plane with a first surface side curvature radius protruding toward the opposite surface in a cross section cut along a plane intersecting an axial direction in the opposite surface. The bonded surface has a curved plane with a second surface side curvature radius protruding toward the bonding surfaces facing the bonded surface in a cross section cut along a plane intersecting an axial direction in the bonded surface. The first surface side curvature radius is smaller than the second surface side curvature radius.

Repair patch, method for molding repair patch, method for repairing composite material, and molding jig

Growing community of inventors

Tokyo, Japan

Shunsuke Yoshino