复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (8): 25-30.

• 基础研究 • 上一篇    下一篇

复合材料预紧力齿连接件剪切疲劳试验研究

高建岗1, 刘鹏飞2, 赵启林2*, 柳锦春1   

  1. 1.解放军理工大学爆炸冲击防灾减灾国家重点实验室,南京 210007;
    2.解放军理工大学野战工程学院,南京 210007
  • 收稿日期:2015-04-01 出版日期:2015-08-28 发布日期:2021-09-14
  • 通讯作者: 赵启林(1972-),男,副教授,主要从事复合材料的应用研究,zhaohsq1919@163.com。
  • 作者简介:高建岗(1990-),男,硕士,主要从事复合材料应用研究。
  • 基金资助:
    国家自然科学基金(11372355);国家973计划资助项目(2012CB026202)

EXPERIMENTAL STUDY ON SHEAR FATIGUE PERFORMANCE OF COMPOSITE PRE-TIGHTENING TOOTH CONNECTOR

GAO Jian-gang1 , LIU Peng-fei2 , ZHAO Qi-lin2*, LIU Jin-chun1 (1.Sate Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007,China; 2.College of Corps of Engineering, PLA University of Science and Technology, Nanjing 210007, China)   

  1. 1. Sate Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact, PLA University of Science and Technology, Nanjing 210007,China;
    2. College of Corps of Engineering, PLA University of Science and Technology, Nanjing 210007, China
  • Received:2015-04-01 Online:2015-08-28 Published:2021-09-14

摘要: 研究表明复合材料预紧力齿连接接头具有良好的静力性能,但对其在循环载荷作用下的疲劳性能还没有深入研究。主要针对不同预紧力下的接头进行了大量疲劳试验,首先通过对试验结果的分析,讨论了预紧力对接头疲劳寿命的影响规律;然后分析了滞回曲线的变化规律,探讨了滞回曲线与接头疲劳损伤累积的关系;最后通过对试件疲劳断口的观察和分析,初步探究了接头的疲劳破坏机理。

关键词: 复合材料, 预紧力齿连接, 疲劳, 滞回曲线

Abstract: Previous study shows that composite pre-tightening tooth connector has a good static performance, but the fatigue performance under cyclic loading had never been deeply investigated. This article conducted a lot of fatigue tests under different pre-tightening force. First of all, through the analysis of experimental results, the effect on fatigue life of pre-tightening was discussed. Then, the changing rule of the hysteresis curves was analyzed, and the relationship between hysteretic curve and the fatigue damage accumulation was discussed. At last, based on the observation and analysis of the specimen fatigue fracture, the fatigue failure mechanism of pre-tightening tooth connector was explored.

Key words: composite material, pre-tightened tooth connection, fatigue, hysteretic loop

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