• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Strength improvement of bolted joints in composite materials by use of patched metal inserts
【24h】

Strength improvement of bolted joints in composite materials by use of patched metal inserts

机译：通过使用贴片金属插入物强度改善复合材料中的螺栓接头

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Metal inserts are occasionally used to improve bearing load capacity of bolted joints in laminated composite materials. This paper investigates a new reinforcement concept where inserts are built by locally replacing composite plies with metal patches of various diameters, surrounding the holes. The inserts are built during composite manufacturing by alternately placing the metal patches through the thickness of the laminate at locations where holes are to be drilled after consolidation. An extensive experimental study including pin-loaded, open-hole tensile, and single-shear testing of bolted specimens is presented. Considerable improvement of the bearing strength - 50-60% - is attained for pin-loaded specimens with inserts, demonstrating the potential of the reinforcement concept. The open-hole tensile tests show that the by-pass strength can be maintained or even improved with up to 20% if the inserts are properly designed. Finally, the results from the single-shear tests of bolted joints show more than 25% improvement in strength for reinforced single- and double-bolt specimens. It is possible that the inserts would maintain clamping pressure over time, which could then almost double the imrovement (47%) for bolted joints.
机译：金属插入物偶尔用于改善层压复合材料中螺栓接头的轴承承载能力。本文调查了一种新的加强概念，其中通过局部地替换具有各种直径的金属贴片的复合层，围绕孔。在复合制造期间通过将金属贴片交替地将金属贴片放置在合并之后钻孔之后钻孔的位置处的层叠体的厚度期间构建。提出了一种广泛的实验研究，包括销上销孔，螺栓拉伸和螺栓样本的单剪切测试。轴承强度的相当大改善 - 50-60％ - 具有插入件的销装备的销载标本，展示了加强概念的潜力。开孔拉伸试验表明，如果刀片被正确设计，可以保持旁路强度或甚至在高达20％的改善。最后，螺栓接头单剪切试验的结果显示出增强的单螺栓标本的强度提高了25％以上。插入件可能会随时间保持夹紧压力，然后可以几乎将螺栓接头的Inrovement（47％）加倍。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号