拉压状态下预紧力齿连接接头承载力和剪应力分布规律研究

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (6): 23-28.

拉压状态下预紧力齿连接接头承载力和剪应力分布规律研究

徐龙星^1*, 程营¹, 陈立¹, 徐攀峰²

1.总装工程兵科研一所,无锡 214035;
2.71352部队,安阳 455000

收稿日期:2014-12-24 出版日期:2015-06-28 发布日期:2021-09-13
作者简介:徐龙星(1988-),男,硕士,主要从事复合材料应用的研究,xu05107224@163.com。
基金资助:
国家自然科学基金(11372355)

RESEARCH ON BEARING CAPACITY AND SHEAR STRESS DISTRIBUTION OF COMPOSITE PRE-TIGHTENED TEETH CONNECTION IN TENSION AND COMPRESSION

XU Long-xing^1*, CHENG Ying¹, CHEN Li¹, XU Pan-feng²

1. The First Research Division, General Equipment Department of the PLA, Wuxi 214035, China;
2. Troop 71352 of PLA,Anyang 455000,China

Received:2014-12-24 Online:2015-06-28 Published:2021-09-13

摘要/Abstract

摘要： 复合材料预紧力齿连接是一种新型连接方式,具有较高的连接效率。本文对预紧力齿连接平板单齿试件进行拉伸与压缩试验,研究对比两种荷载状态下的承载力和剪应力分布规律,采用数字散斑和有限元接触建模两种方法分析齿剪切面的剪应力分布。通过研究发现,相同参数的单齿试件在拉伸与压缩荷载下的承载力相差不大,但两种荷载下齿剪切面的剪应力分布规律却不同。该结论可以用于预紧力齿连接接头的设计计算中。

关键词: 复合材料, 预紧力齿连接, 承载力, 剪应力分布, 数字散斑

Abstract: Pre-tightened tooth connection (PTTC) is a novel connection for composite tubes which has high connection efficiency. The PTTC single tooth plane joint in tension and compression was studied in this paper. The bearing capacity and shear stress distribution of the single tooth joint were compared in tension and compression. The digital speckle correlation method (DSCM) and contact analysis numerical methods are used to analyze the shear strain of specimens. The study shows that the bearing capacities are almost the same with the same factors in tension and compression, but the shear stress distribution of the shear area of the tooth is different. This conclusion can be used in the design and calculation of pre-tightened tooth connection (PTTC).

Key words: composite, pre-tightened teeth connection, bearing capacities, shear stress distribution, digital speckle correlation method

中图分类号:

TB332

徐龙星, 程营, 陈立, 徐攀峰. 拉压状态下预紧力齿连接接头承载力和剪应力分布规律研究[J]. 复合材料科学与工程, 2015, 0(6): 23-28.

XU Long-xing, CHENG Ying, CHEN Li, XU Pan-feng. RESEARCH ON BEARING CAPACITY AND SHEAR STRESS DISTRIBUTION OF COMPOSITE PRE-TIGHTENED TEETH CONNECTION IN TENSION AND COMPRESSION[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(6): 23-28.

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