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Published in: Acta Mechanica 8/2023

17-04-2023 | Original Paper

Interfacial micromechanics study on contact modeling for bolted joints

Authors: Yu Chang, Jianguo Ding, Hui Fan

Published in: Acta Mechanica | Issue 8/2023

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Abstract

Bolted joints represent the discontinuity of the assembled structures, so their contact characteristics contribute significantly to the overall static and dynamic performances of the mechanical system. For the multi-scale geometrical properties of contacting surfaces, an interfacial micromechanics modeling method is proposed to predict contact characteristics using the fractal theory. Meanwhile, the interaction effect caused by the successive tightening of multiple bolts is incorporated into the contact analysis, which characterizes the residual preload of bolts to improve the contact load model. Three contact models for the bolted joint are examined by combining the interfacial micromechanics model with the transfer matrix method for multi-body systems, the finite element method, and the virtual material method. A comparison with the experimental data of a dumbbell-shaped bolted structure is conducted to validate the contact models and estimate their practicality and accuracy. The models show their advantages and drawbacks, which depend on the complexity of the bolted structure, the requirements of computational efficiency, and the research focus.
Literature
33.
go back to reference Rui, X., Wang, G., Zhang, J.: Transfer matrix method for multibody systems: theory and applications. Wiley, Hoboken (2018)MATH Rui, X., Wang, G., Zhang, J.: Transfer matrix method for multibody systems: theory and applications. Wiley, Hoboken (2018)MATH
Metadata
Title
Interfacial micromechanics study on contact modeling for bolted joints
Authors
Yu Chang
Jianguo Ding
Hui Fan
Publication date
17-04-2023
Publisher
Springer Vienna
Published in
Acta Mechanica / Issue 8/2023
Print ISSN: 0001-5970
Electronic ISSN: 1619-6937
DOI
https://doi.org/10.1007/s00707-023-03562-x

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