钢齿齿长变化对复合材料预紧力齿连接接头力学性能影响的试验研究

中国机械工程

钢齿齿长变化对复合材料预紧力齿连接接头力学性能影响的试验研究

孙建1;刘亚文1;高一峰1;赵启林2;戚亮3

1.解放军理工大学野战工程学院，南京，210007
2.南京工业大学机械与动力工程学院，南京，211800
3.黄河水利职业技术学院土木与交通工程学院，开封，475004

出版日期:2017-05-10 发布日期:2017-05-04
基金资助:
国家自然科学基金资助项目（11372355）

Experimental Ressearch on Mechanics Properties of Composite Pre-tightened Teeth Connection Based on Length Changes of Steel Teeth

SUN Jian1;LIU Yawen1;GAO Yifeng1;ZHAO Qilin2;QI Liang3

1.College of Corps of Engineering, PLA University of Science and Technology, Nanjing,210007
2.School of Mechanical and Power Engineering ,Nanjing Tech University, Nanjing,211800
3.Faculty of Civil and Transportation Engineering, Yellow River Conservancy Technical Institute, Kaifeng,Henan,475004

Online:2017-05-10 Published:2017-05-04

摘要/Abstract

摘要： 通过拉伸试验研究了不同钢齿齿长对一种新型复合材料预紧力齿连接接头力学性能的影响，发现了该接头的几种破坏模式以及极限载荷随钢齿齿长的变化规律，并且通过理论公式推导出钢齿发生弯剪变形的临界齿长。研究结果表明：接触端钢齿齿长变化对应复合材料预紧力齿连接接头存在三种破坏模式。在钢齿齿长较短的情况下，改变钢齿齿长会增大单齿的极限承载力;但钢齿齿长增加到一定长度后，钢齿齿长对接头承载力的影响趋于稳定。理论推导出的钢齿临界齿长可以作为钢齿的设计齿长。

关键词: 复合材料, 预紧力齿连接, 破坏模式, 极限承载力, 临界齿长

Abstract: The CFRP pre-tightening teeth connector were investigated by changing the length of steel teeth, and the failure modes and the ultimate load of the specimens were tested. In addition, the critical tooth lengths of bending shear deformations were put out through deducing equations and theoretical analyses. The research shows that the specimens have three failure modes when the lengths of steel teeth were changed. It may effect the ultimate bearing capacity of single tooth when the length of steel tooth is small .However, the influences tend to be stable when the steel tooth achieves a certain length. Critical tooth length may be calculated and the result is just the designed length of the steel tooth.

Key words: composite, pre-tightened teeth connection, failure mode, ultimate bearing capacity, critical tooth length

中图分类号:

TB332

孙建, 刘亚文, 高一峰, 赵启林, 戚亮. 钢齿齿长变化对复合材料预紧力齿连接接头力学性能影响的试验研究[J]. 中国机械工程.

SUN Jian, LIU Yawen, GAO Yifeng, ZHAO Qilin, QI Liang. Experimental Ressearch on Mechanics Properties of Composite Pre-tightened Teeth Connection Based on Length Changes of Steel Teeth[J]. China Mechanical Engineering.

参考文献

[1]汪裕炳, 张全纯. 复合材料的结构连接[M].北京：国防工业出版社,1992:8-14.
WANG Yubing, ZHANG Quanchun. Composite Structural Connection[M]. Beijing:National Defense Industry Press,1992:8-14.
[2]薛克兴, 周瑾. 复合材料结构连接件设计与强度[M].北京:航空工业出版社,1988:263-264.
XUE Kexing, ZHOU Jin. Design and Strength of Composite Structural Connector[M]. Beijing: Aviation Industry Press,1988:263 -264.
[3]中国航空研究院.复合材料连接手册[M].北京:航空工业出版社,1994:56-57,61-73.
China Institute of Aeronautical.Composite Connection Manual[M].Beijing:Aviation Industry Press,1994:56-57,61-73.
[4]马毓，赵启林.复合材料胶-螺混合连接接头承载力分析[J].复合材料学报，2011，28(4):225-231
MA Yu, ZHAO Qilin. Analysis of the Bonded-bolted Hybrid Composite Joints Carrying Capacity[J]. Acta Materiae Compositae Sinica, 2011,28(4): 225-231.
[5]LI Fei，ZHAO Qilin.Prediction of Tensile Capacity Based on Cohesive Zone Model of Bond Anchorage for Fiber-reinforce Polymer Tendon[J]. Composite Structures，2010(92) :2400-2405.
[6]赵启林,翟可为,陈浩森,等. 树脂基复合材料管与金属材料连接方法：中国，CN101799095A[P].2010-08-11.
ZHAO Qilin, ZHAI Kewei, CHEN Haosen, et al. Connection Method of Resin Matrix Composite and Metal Pipes:China,CN101799095A[P].2010-08-11.
[7]赵启林，李飞.树脂基复合材料管连接装置:中国,201688075U[P].2010-12-29.
ZHAO Qilin, LI Fei. Connection Device of Resin Matrix Composite Pipes:China,201688075U[P]. 2010-12-29.
[8]ZHAO Qilin，LI Fei.Research on Bearing Capacity of Single Tooth to Composite Pre-tightened Teeth Connection[J].Journal of Reinforced Plastics and Composites,2013,32(21):1603-1613.
[9]赵启林,高一峰,李飞.复合材料预紧力齿连接技术研究现状与进展[J]. 玻璃钢/复合材料，2014(12):52-56.
ZHAO Qilin,GAO Yifeng,Li Fei.Current Research and Development of the Application of the Pre-tightened Tooth Connection[J].FRP/Composites,2014(12):52-56.
[10]ZHAO Qilin, LI Fei, GAO Yifeng, et al. Research on the Shear Failure Load of Composite Pre-tightened Tooth Connections by the Characteristic Lengths[J].Journal of Reinforced Plastics and Composites,2015,34(14):1153-1166.
[11]LIU Pengfei, ZHAO Qilin, ZHANG Dongdong,et al. Experimental Investigation of a Novel Connection for Pultruded Composites: Hybrid Bolt-tooth Connection[J]. Journal of Reinforced Plastics and Composites,2015,34(17):1359-1377.
[12]李飞.复合材料新型连接技术及在桁架中的应用研究[D].南京:解放军理工大学,2012:41-43.
LI Fei. Research on New Type of Pultruded Composite Connection and Application in the Truss[D].Nanjing: PLA University of Science and Technology,2012:41-43.
[13]徐龙星. 复合材料预紧力齿连接承载力计算方法与试验研究[D].南京:解放军理工大学,2014:18-43.
XU Longxing. Research on Bearing Capacity Calculation and Experiment of Composite Tubes Pre-tightened Teeth Connection [D]. Nanjing:PLA University of Science and Technology,2014:18-43.
[14]高一峰.碳纤维复合材料预紧力齿连接破坏模式及设计方法研究[D].南京:解放军理工大学,2015:11-33.
GAO Yifeng. Research on Failure Mode and Design Method of CFRP Composite Pre-tightened Teeth Connection[D]. Nanjing: PLA University of Science and Technology,2015:11-33.
[15]刘鹏飞.树脂基复合材料预紧力齿连接长期承载性能研究[D].南京:解放军理工大学,2015:74-107.
LIU Pengfei. Research on Bearing Performance of FRP Composite Pre-tightened Teeth Connection for a Long Time[D].Nanjing: PLA University of Science and Technology,2015:74-107.