Optimization of Cast-Steel Tubular Circular-Hollow-Section Connections Based on Depth-First Search Algorithm
This study introduces a novel design for a cast-steel joint in the shape of a T, aimed at resolving concerns regarding stress concentration at points where geometric intersections occur and enhancing the quality of welding in T-shaped welded joints. The proposed integrated design framework greatly f...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/15/2/286 |
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| author | Kaien Jiang Ziming Yang Ju Chen Guoer Lv Huafeng Yu |
| author_facet | Kaien Jiang Ziming Yang Ju Chen Guoer Lv Huafeng Yu |
| author_sort | Kaien Jiang |
| collection | DOAJ |
| description | This study introduces a novel design for a cast-steel joint in the shape of a T, aimed at resolving concerns regarding stress concentration at points where geometric intersections occur and enhancing the quality of welding in T-shaped welded joints. The proposed integrated design framework greatly facilitated the successful construction of a three-dimensional joint between a brace and a chord at a T-shaped node. The geometric parameters of curves in the connector were optimized using a depth-first search algorithm, resulting in control points for the optimized curve. Computer-aided design software was then employed to obtain the refined connector. The design framework has the ability to produce designs with smooth and uninterrupted boundaries, making them highly compatible with traditional casting methods and effectively tackling the manufacturing challenges related to topology optimization. The numerical simulation results demonstrate that, in comparison to traditionally welded T-joints of the same size, the stress concentration factor of the optimized joints exhibits a significant reduction, accompanied by a notable disparity in stress distribution. Moreover, the impact of the thickness of the brace and the axial compression ratio on the stress concentration factor of the optimized joints was relatively insignificant. The stress concentration factor of the cast-steel joint was reduced by more than 84%, leading to a significant enhancement in fatigue performance. |
| format | Article |
| id | doaj-art-076cee0f18a24ee7898a6a51007e0557 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-076cee0f18a24ee7898a6a51007e05572025-01-24T13:26:28ZengMDPI AGBuildings2075-53092025-01-0115228610.3390/buildings15020286Optimization of Cast-Steel Tubular Circular-Hollow-Section Connections Based on Depth-First Search AlgorithmKaien Jiang0Ziming Yang1Ju Chen2Guoer Lv3Huafeng Yu4Power China Huadong Engineering Corporation Limited, Hangzhou 310014, ChinaInstitute of Structural Engineering, Zhejiang University, Hangzhou 310058, ChinaInstitute of Structural Engineering, Zhejiang University, Hangzhou 310058, ChinaPower China Huadong Engineering Corporation Limited, Hangzhou 310014, ChinaPower China Huadong Engineering Corporation Limited, Hangzhou 310014, ChinaThis study introduces a novel design for a cast-steel joint in the shape of a T, aimed at resolving concerns regarding stress concentration at points where geometric intersections occur and enhancing the quality of welding in T-shaped welded joints. The proposed integrated design framework greatly facilitated the successful construction of a three-dimensional joint between a brace and a chord at a T-shaped node. The geometric parameters of curves in the connector were optimized using a depth-first search algorithm, resulting in control points for the optimized curve. Computer-aided design software was then employed to obtain the refined connector. The design framework has the ability to produce designs with smooth and uninterrupted boundaries, making them highly compatible with traditional casting methods and effectively tackling the manufacturing challenges related to topology optimization. The numerical simulation results demonstrate that, in comparison to traditionally welded T-joints of the same size, the stress concentration factor of the optimized joints exhibits a significant reduction, accompanied by a notable disparity in stress distribution. Moreover, the impact of the thickness of the brace and the axial compression ratio on the stress concentration factor of the optimized joints was relatively insignificant. The stress concentration factor of the cast-steel joint was reduced by more than 84%, leading to a significant enhancement in fatigue performance.https://www.mdpi.com/2075-5309/15/2/286cast-steel jointoptimization designshape parameterizationnumerical analysesstress concentration factor |
| spellingShingle | Kaien Jiang Ziming Yang Ju Chen Guoer Lv Huafeng Yu Optimization of Cast-Steel Tubular Circular-Hollow-Section Connections Based on Depth-First Search Algorithm Buildings cast-steel joint optimization design shape parameterization numerical analyses stress concentration factor |
| title | Optimization of Cast-Steel Tubular Circular-Hollow-Section Connections Based on Depth-First Search Algorithm |
| title_full | Optimization of Cast-Steel Tubular Circular-Hollow-Section Connections Based on Depth-First Search Algorithm |
| title_fullStr | Optimization of Cast-Steel Tubular Circular-Hollow-Section Connections Based on Depth-First Search Algorithm |
| title_full_unstemmed | Optimization of Cast-Steel Tubular Circular-Hollow-Section Connections Based on Depth-First Search Algorithm |
| title_short | Optimization of Cast-Steel Tubular Circular-Hollow-Section Connections Based on Depth-First Search Algorithm |
| title_sort | optimization of cast steel tubular circular hollow section connections based on depth first search algorithm |
| topic | cast-steel joint optimization design shape parameterization numerical analyses stress concentration factor |
| url | https://www.mdpi.com/2075-5309/15/2/286 |
| work_keys_str_mv | AT kaienjiang optimizationofcaststeeltubularcircularhollowsectionconnectionsbasedondepthfirstsearchalgorithm AT zimingyang optimizationofcaststeeltubularcircularhollowsectionconnectionsbasedondepthfirstsearchalgorithm AT juchen optimizationofcaststeeltubularcircularhollowsectionconnectionsbasedondepthfirstsearchalgorithm AT guoerlv optimizationofcaststeeltubularcircularhollowsectionconnectionsbasedondepthfirstsearchalgorithm AT huafengyu optimizationofcaststeeltubularcircularhollowsectionconnectionsbasedondepthfirstsearchalgorithm |