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公开(公告)号:US06354334B1
公开(公告)日:2002-03-12
申请号:US09514349
申请日:2000-02-28
申请人: Fernand Ellyin , Zihui Xia
发明人: Fernand Ellyin , Zihui Xia
IPC分类号: F16L904
CPC分类号: B29C70/86 , B29C63/10 , B29C70/088 , F16L9/147 , F17C1/06 , F17C1/16 , F17C2201/0104 , F17C2201/056 , F17C2203/0604 , F17C2203/0619 , F17C2203/0639 , F17C2203/0673 , F17C2209/2154 , F17C2209/2172 , F17C2209/232 , F17C2223/036 , F17C2260/011 , F17C2260/012 , Y10S138/02 , Y10S138/05
摘要: A steel liner (a pipe or vessel) is wrapped with a stack of sheets of glass fiber-reinforced epoxy matrix composite arranged in angle-ply pattern. The stack is cured on the liner to bond the sheets together and to the liner. The wrapped liner is then internally pressurized to cause the liner to yield while the composite remains elastic. When de-pressurized, the liner has compressive residual stress and the composite has tensile residual stress. When the resulting hybrid structure is subsequently again pressurized, it is found that the elastic regime of the liner has been extended.
摘要翻译: 钢衬套(管或容器)用一叠玻璃纤维增强环氧树脂基复合材料包装成角度布置。 堆叠在衬垫上固化以将片材粘合到衬垫上。 然后将包裹的衬里内部加压,以使复合材料保持弹性时产生衬垫。 当减压时,衬套具有压缩残余应力,复合材料具有拉伸残余应力。 当所得到的混合结构随后再次被加压时,发现衬套的弹性状态已经延长。