Interfacial micromechanics study on contact modeling for bolted joints
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 m...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/170076 |
| _version_ | 1811681174113746944 |
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| author | Chang, Yu Ding, Jianguo Fan, Hui |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Chang, Yu Ding, Jianguo Fan, Hui |
| author_sort | Chang, Yu |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T03:36:45Z |
| format | Journal Article |
| id | ntu-10356/170076 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:36:45Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1700762023-08-24T02:50:45Z Interfacial micromechanics study on contact modeling for bolted joints Chang, Yu Ding, Jianguo Fan, Hui School of Mechanical and Aerospace Engineering Engineering::Electrical and electronic engineering Bolts Transfer Matrix Method 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. This work was supported by Science Challenge Project (No. JDZZ2016006-0102). Author Yu Chang has received support from China Scholarship Council (No. 202106840001). 2023-08-24T02:50:45Z 2023-08-24T02:50:45Z 2023 Journal Article Chang, Y., Ding, J. & Fan, H. (2023). Interfacial micromechanics study on contact modeling for bolted joints. Acta Mechanica, 234(8), 3377-3396. https://dx.doi.org/10.1007/s00707-023-03562-x 0001-5970 https://hdl.handle.net/10356/170076 10.1007/s00707-023-03562-x 2-s2.0-85153053430 8 234 3377 3396 en Acta Mechanica © The Author(s),under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Bolts Transfer Matrix Method Chang, Yu Ding, Jianguo Fan, Hui Interfacial micromechanics study on contact modeling for bolted joints |
| title | Interfacial micromechanics study on contact modeling for bolted joints |
| title_full | Interfacial micromechanics study on contact modeling for bolted joints |
| title_fullStr | Interfacial micromechanics study on contact modeling for bolted joints |
| title_full_unstemmed | Interfacial micromechanics study on contact modeling for bolted joints |
| title_short | Interfacial micromechanics study on contact modeling for bolted joints |
| title_sort | interfacial micromechanics study on contact modeling for bolted joints |
| topic | Engineering::Electrical and electronic engineering Bolts Transfer Matrix Method |
| url | https://hdl.handle.net/10356/170076 |
| work_keys_str_mv | AT changyu interfacialmicromechanicsstudyoncontactmodelingforboltedjoints AT dingjianguo interfacialmicromechanicsstudyoncontactmodelingforboltedjoints AT fanhui interfacialmicromechanicsstudyoncontactmodelingforboltedjoints |