Mitsubishi Heavy Industries Limited

Masatake Hatano

Shunichi Morishima

Toshio Kozasa

Kazuaki Kishimoto

Yukio Takeuchi

Hitoshi Ojika

Masayuki Yamashita

Hideyuki Suzuki

Kazuki Sato

Yuya Tanaka

Ryo Abe

Satoru Saito

Akihisa Watanabe

Masahiko Matsuhashi

Yutaka Kanayama

Timothy Craig Momose

Takayuki Tani

Toshihiko Azuma

Kiyoshi Sugeta

A pultrusion material serves as a composite material having a reinforced part that is a part reinforced against a load acting in a load direction. The reinforced part includes: a core material that comprises bundled reinforcing fibers and that is provided so as to extend along the load direction; and a cover section obtained by covering the circumference of the core material with a fiber sheet. The fiber direction of the reinforcing fibers in the core material is oriented along the load direction.

Composite material, pultrusion device, and pultrusion method

A method for designing the cross-sectional shape of the fuselage of a flying body having the fuselage extending in the roll axial direction, the section being taken on a plane perpendicular to the roll axial direction. This method is provided with: an initial setting step Sfor setting an initial cross-sectional shape, which is the initial cross-sectional shape of the fuselage having a cross-sectional shape that is not truly circular; load application steps S, S, Sfor analytically or experimentally preloading the fuselage having the initial cross-sectional shape; and a design shape setting step Sfor acquiring the cross-sectional shape of the preloaded fuselage as the design cross-sectional shape of the fuselage.

Method, design device, and design program for cross-sectional shape of fuselage

Provided are a method and a device for producing a pultruded material that improve the homogeneity of a thermosetting resin. The device for producing a pultruded material comprises a first opening section, a second opening section, a closing section, a tension-applying section, an impregnating section, and a mold. The first opening section and the second opening section open a bundle of reinforcing fibers and thereby obtain a bundle of reinforcing fibers. The closing section closes the bundle of opened reinforcing fibers and thereby obtains a bundle of reinforcing fibers. The tension-applying section applies tension along the direction in which the reinforcing fibers extend to the bundle of reinforcing fibers that pass through the closing section. The impregnating section impregnates the bundle of reinforcing fibers with a thermosetting resin. The mold pultrudes the bundle of reinforcing fibers that have been impregnated with the thermosetting resin.

Method and device for producing pultruded material

A joined member assembly method includes: a step in which a substrate is inserted in a gap between a superposed first component and a second component, said substrate being configured from a multilayer fabric that is capable of expanding as a result of heating and that is flexible after expansion and a reinforcing material woven into the multilayer fabric; a step in which the substrate is heated and made to expand in the thickness direction; a step in which the gap is filled with a resin and the substrate is impregnated with the resin; and a step in which the resin is cured. A step in which a seam is created by machining in accordance with a measured gap shape is omitted.

Joined member assembly method and joined member

A device for producing a pultruded article is provided with: a mold in which an intermediate molded article comprising reinforcing fibers impregnated with a thermosetting resin is heated and hardened; and a pultrusion device that causes a pultruded article generated by heating and hardening the intermediate molded article in the mold to be pultruded from the mold. The mold comprises a pressing member that is elastically deformable and that presses the intermediate molded article.

Device and method for producing pultruded article

This pultrusion material that is a composite material member comprises: a plurality of fiber sheets that extend along a lengthwise direction; and a gap material that is provided to a gap formed by the plurality of fiber sheets, wherein the gap material has a gap fiber sheet including reinforcement fibers that are oriented in a different fiber direction than the lengthwise direction, and has gap reinforcement fibers that are oriented in the same fiber direction as the lengthwise direction. Additionally, the gap reinforcement fibers are provided evenly distributed in a cross-section of the gap material, said cross-section being perpendicular to the lengthwise direction.

Composite material member, gap material, pultrusion device, and pultrusion method

Provided are: a fiber-containing material which has improved strength in an out-of-plane direction without a decrease in strength in an in-plane direction; a method for inserting out-of-plane reinforcement threads; and a method for producing the fiber-containing material. The fiber-containing material contains a base material and out-of-plane reinforcement threads. The base material contains reinforcement fibers extending in a direction along a plane. The out-of-plane reinforcement threads are formed in the base material so as to extend in a direction intersecting the direction along the plane.

Method for inserting out-of-plane reinforcement threads and method for producing fiber-containing material

A method for producing a pultruded article includes: a step in which an activation sheet having a sliding surface capable of sliding with the inner surface of a mold is arranged on the surface of an intermediate molded article comprising reinforcing fibers that are impregnated with a thermosetting resin and the intermediate molded article and the activation sheet are introduced into a mold together; and a step in which a pultruded article generated by heating and hardening the intermediate molded article in the mold is pultruded together with the activation sheet from the mold.

Production method for a pultruded article

This device for producing a pultrusion molded article is provided with: a mold member that heats and cures an intermediate molded article as a result of the mold member contacting an intermediate molded article in which reinforcing fibers are impregnated with a thermosetting resin; a pultrusion device for extracting, in the pultruding direction, the pultrusion molded article formed by heating and curing the intermediate molded article; and a moving device for moving the mold member in the pultruding direction in synchronization with the pultrusion device.

Production device and production method for pultrusion molded article

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.

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Tokyo, Japan

Masatake Hatano