Profile design of loaded pins in composite single lap joints: From circular to non-circular

被引：13

作者：

Zhou, Yadong ^{[1
,2
,3
]}

Fei, Qingguo ^{[1
,4
]}

Tao, Jiayue ^{[1
,4
]}

机构：

[1] Southeast Univ, Dept Engn Mech, Nanjing 210096, Jiangsu, Peoples R China

[2] Northwestern Univ, Dept Civil & Environm Engn, Evanston, IL 60208 USA

[3] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[4] Jiangsu Key Lab Engn Mech, Nanjing 210096, Jiangsu, Peoples R China

来源：

Results in Physics | 2016年 / 6卷

基金：

中国国家自然科学基金;

关键词：

Composite single lap joints; Pin-loaded joints; Stress concentration; Net-tension stress; Bearing stress; Non-circular profile; MECHANICALLY FASTENED JOINTS; REINFORCED EPOXY LAMINATE; ORTHOTROPIC PLATES; FAILURE ANALYSIS; GEOMETRIC PARAMETERS; INTERFERENCE-FIT; PATCH SHAPE; PART I; STRENGTH; HOLES;

D O I：

10.1016/j.rinp.2016.07.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Mechanical joints are the weakest links of composite materials and structures. The aim of this study is to investigate the effect of the pin profiles on the stress concentration and load-carry capacity of the pin-loaded single-lap joints subjected to tensile loading. Non-circular profiles of pins are numerically investigated to pursue a possible stress concentration reduction in both the net-tension and bearing stresses of composite single lap joints. Firstly, by varying the characteristic parameters, various round-corner squares are evaluated in terms of peak stresses. Secondly, the square-like profile is transferred to the racetrack-like one in order to gain optimal bearing stresses. Thirdly, the pin of the racetrack-like profile is investigated compared to the circular one, taking into account the through-thickness distributions of stresses. Lastly, the orthotropic effect and the load-carry capacity of the proposed profile are also discussed. (C) 2016 The Authors. Published by Elsevier B.V.

引用

页码：471 / 480

页数：10

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