承压管的临界载荷及碳纤维缠绕后的增强作用  

CRITICAL LOAD OF COMPRESSION-BEARING TUBE AND STRENGTHEN EFFECT OF THE EXTERNAL WINDING WITH CARBON FIBER

作　　者：郑宗光[1] 浦桂玲 李世红[1] 巴力学[1] 周本濂[1] 程国生[2] 

机构地区：[1]中国科学院金属研究所 [2]沈阳建筑工程学院

出　　处：《材料科学进展》1993年第2期167-172,共6页

基　　金：国家自然科学基金;9590015

摘　　要：金属管外壁用碳纤维缠绕复合后,其承受横向与轴向压载荷的能力均茯得了明显的提高。尤其是细长管缠绕碳纤维后,对轴向压载荷的抗弯曲变形及抗压极限承载能力都有大幅度的提高。本文介绍了硬 Al 合金(LY-11Al 合金)圆管在外壁缠绕复合碳纤维前后承受压载能力的实验数据的对比,以及对未经缠绕复合的承压管的理论临界压力进行探讨,分析了缠绕碳纤维能提高承载能力的原因。The axial and lateral compressive resistance of aluminium alloy tube are in-creased obviously after the winding of carbon fiber on its external surface.Especially for thetube with large length-to-radius ratio,its flexural resistance under axial load and itscompressive resistance after flexural deformation are all improved obviously.The experimentalcomparison was made between circular tubes of LY-11(solid aluminium alloy)with and with-out the external winding of carbon fiber.A theoretical critical compressive strength of circulartube without external winding was presented.Finally,the strengthen mechanism of externalwinding was also analysed.

关 键 词：承压管 临界 载荷 碳纤维 铝 

分 类 号：TG146.21[一般工业技术—材料科学与工程]