复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (8): 31-34.

• 基础研究 • 上一篇    下一篇

复合材料缠绕管弯曲载荷下的力学性能

蔡浩鹏1*, 王俊鹏1, 赵锡鑫2, 王钧1   

  1. 1.武汉理工大学材料科学与工程学院,武汉 430070;
    2.湖北江山重工有限责任公司,襄阳 441057
  • 收稿日期:2013-08-05 出版日期:2013-11-28 发布日期:2022-03-22
  • 作者简介:蔡浩鹏(1979-),男,博士,副教授,主要从事复合材料结构及性能研究。

STUDY OF BENDING PROPERTIES OF FILAMENT WINDING PIPE

CAI Hao-peng1*, WANG Jun-peng 1, ZHAO Xi-xin2, WANG Jun1   

  1. 1. School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China;
    2. Hubei Jiangshan Heavy Industry Co., Ltd., Xiangyang 441057, China
  • Received:2013-08-05 Online:2013-11-28 Published:2022-03-22

摘要: 本文研究了铺层角度对缠绕制品弯曲性能及失效模式的影响,结果表明: ±45°均衡层合板和复合材料管失效应变最大。复合材料缠绕管缠绕角度为 ±45°时,弯曲载荷作用下制品变形最大,破坏时曲率半径为0.35m; 缠绕角度增加,缠绕管柔性急剧降低。缠绕角度为 ±60°时,弯曲破坏曲率半径为0.53m,相比 ±45缠绕管增加了51%。随着缠绕角度的增加,弯曲破坏模式由受压屈曲失效转变为极限应变失效,增大缠绕角度可以抑制受压屈曲造成的失效。

关键词: 复合材料管, 缠绕角度, 四点弯曲, 失效模式

Abstract: The influence of filament winding angle on bending properties and failure mode is studied. Results revealed ±45° laminate and pipe present the maximum failure strain. ±45° winded products have the highest deformability when subjected bending load and the radius of curvature is 0.35m after rupture. When winding angle increases, flexibility of FRP pipe decreases drastically. Radius of curvature after rupture is 0.53m when winding angle is 60°, increased by 51% compared to ±45 winding. As the winding angle increases, failure mode turns from buckling to material failure. Increasing winding angle can effectively suppress buckling.

Key words: FRP tubes, winding angle, four-point bending, failure mode

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