ANALYTICAL MODELING OF THE TRANSVERSE LOAD-DISPLACEMENT RELATION OF A BOLTED JOINT WITH CONSIDERATION OF THE MECHANICAL BEHAVIOR ON CONTACT SURFACES-猫眼课题宝

DOI：

10.1115/pvp2009-77612

发表时间：

2009

期刊：

影响因子：

通讯作者：

中科院分区：

其他

文献类型：

作者：

T. Yokoyama;S. Izumi;S. Sakai

从理论上建立了承受横向载荷的螺栓接头机械行为的分析模型。研究表明，夹紧部件的横向位移可分为五个因素：（a）由于作用在螺纹表面上的横向力而导致的螺栓弯曲，（b）由于螺纹表面反作用力矩而导致的螺栓弯曲，（c）螺栓头的倾斜，（d）螺纹表面滑移和（e）轴承表面滑移。为了计算因子（d）和（e），对接触表面上引起的接触力和滑动位移进行建模，同时根据先前的理论制定因子（a）至（c）。另外，已经表明，影响(b)至(e)的接触表面上引起的反作用力矩的变化取决于接触状态。然后，公式化了反作用力矩和横向载荷之间的关系。我们已将分析模型应用于 M16 螺栓接头，并确认该模型在载荷-位移关系与 FEM 结果方面表现出良好的一致性。版权所有 © 2009 by ASME

An analytical model for the mechanical behavior of bolted joints subjected to transverse load has been theoretically formulated. It has been shown that transverse displacement of the cramped component can be separated into five factors: (a) bolt bending due to transverse force acting on the thread surface, (b) bolt bending due to thread surface reaction moment, (c) inclination of bolt head, (d) thread surface slip, and (e) bearing surface slip. In order to calculate the factors (d) and (e), contact force and slip displacement induced on the contact surfaces are modeled while factors (a) to (c) are formulated according to previous theories. In addition, it has been shown that variation in reaction moment induced on the contact surfaces, which affects (b) to (e), depends on contact state. Then, the relation between the reaction moment and transverse load is formulated. We have applied our analytical model to an M16 bolted joint and confirmed that the model shows good agreement on the load-displacement relation with FEM result.Copyright © 2009 by ASME

ANALYTICAL MODELING OF THE TRANSVERSE LOAD-DISPLACEMENT RELATION OF A BOLTED JOINT WITH CONSIDERATION OF THE MECHANICAL BEHAVIOR ON CONTACT SURFACES

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