Finite element analysis and modeling of structure with bolted joints
Finite element analysis and modeling of structure with bolted joints
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DOI：
10.1016/j.apm.2006.03.020
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发表时间：
2007-05-01
影响因子：
5
通讯作者：
Kang, Beom-Soo
中科院分区：
文献类型：
--
作者：
Kim, Jeong;Yoon, Joo-Cheol;Kang, Beom-Soo
在这项工作中，为了研究与螺栓连接的结构的建模技术，四种有限元模型：一个实体螺栓模型，耦合螺栓模型，一个蜘蛛螺栓模型，和一个无螺栓模型。所有的模型都考虑了预紧力的影响和法兰间的接触行为。在这些模型中，实体螺栓模型，这是通过使用三维实体单元和头部/螺母和法兰接口之间的面-面接触单元建模，提供了最好的准确的响应与实验结果相比。此外，耦合螺栓模型，耦合度之间的头部/螺母和法兰的自由度，显示了最好的有效性和实用性的计算时间和内存的使用。最后，采用本文提出的螺栓模型对一大型船用柴油机进行了结构分析，该柴油机由多个由长螺栓连接的部件组成。(c)2006年爱思唯尔公司All rights reserved.
In this work, in order to investigate a modeling technique of the structure with bolted joints, four kinds of finite element models are introduced; a solid bolt model, a coupled bolt model, a spider bolt model, and a no-bolt model. All the proposed models take into account pretension effect and contact behavior between flanges to be joined. Among these models, the solid bolt model, which is modeled by using 3D solid elements and surface-to-surface contact elements between head/ nut and the flange interfaces, provides the best accurate responses compared with the experimental results. In addition, the coupled bolt model, which couples degree of freedom between the head/nut and the flange, shows the best effectiveness and usefulness in view of computational time and memory usage. Finally, the bolt model proposed in this study is adopted for a structural analysis of a large marine diesel engine consisting of several parts which are connected by long stay bolts. (c) 2006 Elsevier Inc. All rights reserved.