作者: Akira Iwamura , Shuji Akashi , Yukio Okada
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摘要: A fiber reinforced structural member comprises a shell element formed of material such as, for example, plastic, and core having large joining surface fixedly joined to the inner element, comprising one or plurality primary elements each in form tube channel, internally filled with filling foam polyurethane. Since are together over area, an external force applied is distributed hence stress reduced, so that durability reliability enhanced.