%0 Journal Article
%T 配合方式对复合材料单钉单剪螺栓连接接头刚度的影响及其机制<br>Influence and mechanism of fitting mode on stiffness of single-bolt, single-lap composite bolted joint
%A 姜晓伟
%A 曾建江
%A 曾昭炜
%A 童明波
%J 复合材料学报
%D 2016
%R 10.13801/j.cnki.fhclxb.20150715.003
%X 针对单钉单剪复合材料螺栓连接,研究了间隙与干涉2种配合方式对接头刚度的影响及其机制。通过与试验结果的对比,验证了所采用的有限元方法的有效性。结果表明:对于复合材料单钉单剪螺栓连接,间隙配合导致接头刚度变小, 3%钉直径的间隙量导致接头刚度下降16%~17%,并且随着间隙量的增大,接头刚度基本呈线性下降;而对于装配过程中没有产生孔边分层损伤的干涉配合连接件, 0.5%钉直径的干涉量使得接头刚度增加了约15%。配合方式不同,连接件孔周接触应力峰值方向及厚度方向接触应力分布不均匀的程度不同,进而影响了接头刚度。 The influence and mechanism of fitting modes including clearance and interference on joint stiffness were researched as far as single-bolt, single-lap composite bolted joint was concerned. The validation of the adopted finite element method was confirmed by comparing with the results of tests. The results illustrate that for single-bolt, single-lap composite bolted joint, clearance fit reduces joint stiffness and the joint stiffness decreases almost linearly as clearance increases, clearance fit of 3% bolt diameter decreases joint stiffness by 16%-17%. For joint without hole delamination damage during assembling process, interference fit of 0.5% bolt diameter increases joint stiffness by about 15%. With different fitting modes, the contact stress peak direction and the uneven degree of contact stress distribution through thickness are distinct, which influence the joint stiffness. 国家自然科学基金(11302105)
%K 复合材料
%K 有限元
%K 螺栓连接
%K 配合方式
%K 单钉单剪&lt
%K br&gt
%K composite
%K finite element
%K bolted joint
%K fitting mode
%K single-bolt
%K single-lap
%U http://fhclxb.buaa.edu.cn/CN/abstract/abstract13083.shtml