Mitsubishi Heavy Industries Limited

Akihisa Watanabe

Hideyuki Suzuki

Kazuki Sato

Yuya Tanaka

Ryo Abe

Masatake Hatano

Satoru Saito

Yutaka Kanayama

Noriya Hayashi

A method of producing a composite material includes preparing at least one molded product raw material by primary curing; preparing an assembled body by assembling the primarily cured molded product raw material with another molded product raw material; and integrally forming the molded product raw materials by heating the assembled body to a temperature equivalent to or higher than a glass transition point of the primarily cured molded product raw material to cause a phase of the at least one molded product raw material to transition to a rubberized state, by allowing an adhesive adjacent to the molded product raw material or the other molded product raw material adjacent to the molded product raw material to coexist with the molded product raw material in the rubberized state, and by secondarily curing the primarily cured at least one molded product raw material.

Method of producing composite material

A composite material structure reinforced against stress concentration in peripheral edge portions of holes and enabled to be reduced in weight. A wing () is formed in a box structure. A lower surface outer plate () of the wing () includes: a center section () made of metal extending in one direction and having access holes () formed therein; a front section (); and a rear section () made of fiber reinforced plastics extending in the one direction and connected to both side portions of the center section (). As the metal used for the center section (), a titanium alloy or an aluminum alloy is suitable.

Composite material structure, and aircraft wing and aircraft fuselage provided therewith

Provided is a composite material structure enabled to be reduced in weight. The composite material structure includes a front section () extending in one direction and formed as a composite material made of fiber reinforced plastics, a rear section () separated from the front section () by a predetermined space, extending in the one direction, and formed as a composite material made of fiber reinforced plastics, and access panels () provided between the front section () and the rear section () and having a dimension in the one direction shorter than the front section () and the rear section (). The access panels () are fixed to the front section () and the rear section () in an orthogonal direction substantially orthogonal to the one direction and set to be displaceable in the one direction and are removable.

Composite material structure and aircraft wing provided therewith

Growing community of inventors

Tokyo, Japan

Akihisa Watanabe