Impact of bolt positioning on the stiffness of angular support brackets
Bolts and screws are usually preferred over other joining techniques when assembly and disassembly operations are required. However, they add extra weight to the system, so it is essential to reduce their size and weight by optimizing bolt parameters. Additionally, the stiffness of bolted members i...
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| Format: | Article |
| Language: | English |
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Czech Technical University in Prague
2024-10-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/10114 |
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| author | Dario Croccolo Stefano Fini Muhammad Yasir Khan |
| author_facet | Dario Croccolo Stefano Fini Muhammad Yasir Khan |
| author_sort | Dario Croccolo |
| collection | DOAJ |
| description |
Bolts and screws are usually preferred over other joining techniques when assembly and disassembly operations are required. However, they add extra weight to the system, so it is essential to reduce their size and weight by optimizing bolt parameters. Additionally, the stiffness of bolted members is very crucial; those with low stiffness may affect the correct functioning of the other connected components. This study focuses on the impact produced by bolt positions, specifically their center of gravity and spacing among them, on the stiffness of angular L-shaped brackets using Finite Element Analysis. Bending and torsional loads were applied to the free end of the member and deformations were recorded under these loads. The results revealed that a triangular bolt pattern is recommended for three bolts, whereas for four or more bolts, the pattern should be uniform to avoid stress concentrations. Moreover, the center of gravity and bolt spacing have a significant impact on stiffness. By optimizing bolt spacing and the center of gravity, a combination of six bolts can be replaced with four bolts of the same size while maintaining the same stiffness.
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| format | Article |
| id | doaj-art-363f151d005a4b04827012def8562e9f |
| institution | Kabale University |
| issn | 2336-5382 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-363f151d005a4b04827012def8562e9f2025-08-20T03:33:08ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822024-10-014810.14311/APP.2024.48.0009Impact of bolt positioning on the stiffness of angular support bracketsDario Croccolo0Stefano Fini1Muhammad Yasir Khan2University of Bologna, Department of Industrial Engineering (DIN), Viale del Risorgimento 2, 40136 Bologna, ItalyUniversity of Bologna, Department of Industrial Engineering (DIN), Viale del Risorgimento 2, 40136 Bologna, ItalyUniversity of Bologna, Department of Industrial Engineering (DIN), Viale del Risorgimento 2, 40136 Bologna, Italy Bolts and screws are usually preferred over other joining techniques when assembly and disassembly operations are required. However, they add extra weight to the system, so it is essential to reduce their size and weight by optimizing bolt parameters. Additionally, the stiffness of bolted members is very crucial; those with low stiffness may affect the correct functioning of the other connected components. This study focuses on the impact produced by bolt positions, specifically their center of gravity and spacing among them, on the stiffness of angular L-shaped brackets using Finite Element Analysis. Bending and torsional loads were applied to the free end of the member and deformations were recorded under these loads. The results revealed that a triangular bolt pattern is recommended for three bolts, whereas for four or more bolts, the pattern should be uniform to avoid stress concentrations. Moreover, the center of gravity and bolt spacing have a significant impact on stiffness. By optimizing bolt spacing and the center of gravity, a combination of six bolts can be replaced with four bolts of the same size while maintaining the same stiffness. https://ojs.cvut.cz/ojs/index.php/APP/article/view/10114stiffnessbolt positioningangular bracketsoptimizationnumerical analysis |
| spellingShingle | Dario Croccolo Stefano Fini Muhammad Yasir Khan Impact of bolt positioning on the stiffness of angular support brackets Acta Polytechnica CTU Proceedings stiffness bolt positioning angular brackets optimization numerical analysis |
| title | Impact of bolt positioning on the stiffness of angular support brackets |
| title_full | Impact of bolt positioning on the stiffness of angular support brackets |
| title_fullStr | Impact of bolt positioning on the stiffness of angular support brackets |
| title_full_unstemmed | Impact of bolt positioning on the stiffness of angular support brackets |
| title_short | Impact of bolt positioning on the stiffness of angular support brackets |
| title_sort | impact of bolt positioning on the stiffness of angular support brackets |
| topic | stiffness bolt positioning angular brackets optimization numerical analysis |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/10114 |
| work_keys_str_mv | AT dariocroccolo impactofboltpositioningonthestiffnessofangularsupportbrackets AT stefanofini impactofboltpositioningonthestiffnessofangularsupportbrackets AT muhammadyasirkhan impactofboltpositioningonthestiffnessofangularsupportbrackets |