Laminated structure and method for manufacturing the same
AssigneeKawasaki Jukogyo Kabushiki Kaisha
InventorsRyo Morihashi, Takeshi Hasegawa, Yosuke Tsumura, Takeshi Takagi
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Abstract
A laminated structure has a first layer formed from a fiber reinforced plastic, a second layer formed from a fiber reinforced plastic and arranged opposed to the first layer, a first core layer formed from a first resin foam and arranged between the first layer and the second layer, and a second core layer formed from a second resin foam and arranged between the first core later and the second layer. The first resin foam has a higher flame resistance than the second resin foam. A laminated structure having flame resistance and high strength enough to endure a bird strike or the like at the same time can be manufactured at relatively low manufacturing cost.
Claims17
A laminated structure comprising:
- a first layer formed from a fiber reinforced plastic;
- a second layer formed from a fiber reinforced plastic and arranged opposed to the first layer;
- a first core layer formed from a first resin foam and arranged between the first layer and the second layer;
- and
- a second core layer formed from a second resin foam and arranged between the first core layer and the second layer, wherein a thickness of the second core layer is thicker than a thickness of the first core layer,
- wherein the first resin foam has a higher flame resistance than the second resin foam,
- wherein the second resin foam has a higher strength than the first resin foam, and
- wherein a neutral plane of shear stress is located within the second core layer.
A manufacturing method of a laminated structure, comprising:
- forming a first core member from a first resin foam;
- forming a second core member from a second resin foam;
- forming a core member assembly by laminating the first core member and the second core member, wherein a thickness of the second core member is thicker than a thickness of the first core member;
- laminating a reinforcing fiber for forming a first fiber reinforced plastic layer on a mold;
- making the first core member side of the core member assembly opposite to a surface of the reinforcing fiber for forming the first fiber reinforced plastic layer so as to be laminated on the same surface;
- and
- laminating a reinforcing fiber for forming a second fiber reinforced plastic layer on the second core member side of the core member assembly,
- wherein the first resin foam has a higher flame resistance than the second resin foam and wherein the second resin foam has a higher strength than the first resin foam, and
- wherein a neutral plane of shear stress is located within the second core member.
Dependencies are inferred from the claim text.