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Stress and Deformation Analysis of Different Bolt Models in Finite Element Analysis

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Part of the Lecture Notes in Networks and Systems book series (LNNS,volume 472)


Finite Element Method (FEM) is a commonly used numerical method for solving engineering problems by cutting the structure into several elements connected to nodes. A set of algebraic equations is solved (instead of multiple partial differential equations) to obtain the desired results. The method is usually applied through different computer software on the structure models. It is required more time to solve large models with a lot of elements. To reduce solution time, it is required to simplify some of the parts of the structure and use some approximations. Some of the usual components in structures are bolts, which could be simplified by different models. The proposition of the simple structural model is created in FEM software named ANSYS is created and analyzed with different bolt models. Stress and deformation results are compared to the analytical solution for the proposed model. It is shown that the best results for deformation are obtained for bolt modelled as line body, and the best result for the stress in bolts are obtained for a solid body model of a bolt and nut. For all variants of the bolt model, is shown that it gives larger values of stress and deformations than analytical calculations, which increases the safety factor of a structure. Usage of the right approximation of structure parts in FEM can decrease solution time and still give an appropriate result for deformation and stress.


  • Finite element method
  • Bolt
  • Stress
  • Deformation

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  • DOI: 10.1007/978-3-031-05230-9_18
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Correspondence to Emir Nezirić .

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Sušić, A., Nezirić, E., Isić, S., Šunje, E. (2022). Stress and Deformation Analysis of Different Bolt Models in Finite Element Analysis. In: Karabegović, I., Kovačević, A., Mandžuka, S. (eds) New Technologies, Development and Application V. NT 2022. Lecture Notes in Networks and Systems, vol 472. Springer, Cham.

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