Analysis of ultimate fracture bearing capacity of CHS XK-joints welds
The current study presents advanced finite element (FE) models that combine the stress weighted damage model and the crack propagation using explicit dynamic approach of commercial FE software ABAQUS. The applicability of the subroutine for ductile fracture prediction and crack propagation modeling...
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| Format: | Article |
| Language: | English |
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Sustainable Development Press Limited
2023-12-01
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| Series: | Sustainable Structures |
| Subjects: | |
| Online Access: | http://www.sustain-dpl.com/UploadFile/article/202310031631441421.pdf |
| _version_ | 1797518809782812672 |
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| author | Zhenghua Huang Mahmud Ashraf Tao Zheng Yong Yang Enhe Bao Han Han |
| author_facet | Zhenghua Huang Mahmud Ashraf Tao Zheng Yong Yang Enhe Bao Han Han |
| author_sort | Zhenghua Huang |
| collection | DOAJ |
| description | The current study presents advanced finite element (FE) models that combine the stress weighted damage model and the crack propagation using explicit dynamic approach of commercial FE software ABAQUS. The applicability of the subroutine for ductile fracture prediction and crack propagation modeling of structural steel is confirmed by comparing the results of fracture tests performed on circumferential notch specimens. FE analysis is performed on 17 circular hollow section (CHS) XK-joint models with various sized partial penetration welds to simulate the fracture process of the joint models, and the obtained results are used to analyze the fracture ultimate bearing capacity of the joint weld. The results indicate that the crack first appears on the inner side of the weld at the crown point of the intersecting line of the tensile web member. The findings also demonstrate that the joint weld does not lose the bearing capacity completely after the initial cracking. Instead, the joint weld's bearing capacity increased with the displacement at the early stages of fracture propagation to reach the maximum value prior to gradual decrease in bearing capacity. A design formula of weld bearing capacity suitable for partial penetration weld has been proposed herein to incorporate the effects of uneven distribution of joint weld stress in the considered XK-joints. |
| first_indexed | 2024-03-10T07:34:44Z |
| format | Article |
| id | doaj.art-5187a09acbf14d75b5001fcac3d7dd28 |
| institution | Directory Open Access Journal |
| issn | 2789-3111 2789-312X |
| language | English |
| last_indexed | 2024-03-10T07:34:44Z |
| publishDate | 2023-12-01 |
| publisher | Sustainable Development Press Limited |
| record_format | Article |
| series | Sustainable Structures |
| spelling | doaj.art-5187a09acbf14d75b5001fcac3d7dd282023-11-22T13:36:15ZengSustainable Development Press LimitedSustainable Structures2789-31112789-312X2023-12-013210.54113/j.sust.2023.000031Analysis of ultimate fracture bearing capacity of CHS XK-joints weldsZhenghua Huang0Mahmud Ashraf1Tao Zheng2Yong Yang3Enhe Bao4Han Han5 School of Civil Engineering, Guizhou University, Guiyang 550025, China School of Engineering, Deakin University, Geelong Waurn Ponds 3216, Australia.School of Civil Engineering, Guizhou University, Guiyang 550025, ChinaSchool of Civil Engineering, Guizhou University, Guiyang 550025, ChinaSchool of Civil Engineering, Guizhou University, Guiyang 550025, ChinaSchool of Civil Engineering, Guizhou University, Guiyang 550025, ChinaThe current study presents advanced finite element (FE) models that combine the stress weighted damage model and the crack propagation using explicit dynamic approach of commercial FE software ABAQUS. The applicability of the subroutine for ductile fracture prediction and crack propagation modeling of structural steel is confirmed by comparing the results of fracture tests performed on circumferential notch specimens. FE analysis is performed on 17 circular hollow section (CHS) XK-joint models with various sized partial penetration welds to simulate the fracture process of the joint models, and the obtained results are used to analyze the fracture ultimate bearing capacity of the joint weld. The results indicate that the crack first appears on the inner side of the weld at the crown point of the intersecting line of the tensile web member. The findings also demonstrate that the joint weld does not lose the bearing capacity completely after the initial cracking. Instead, the joint weld's bearing capacity increased with the displacement at the early stages of fracture propagation to reach the maximum value prior to gradual decrease in bearing capacity. A design formula of weld bearing capacity suitable for partial penetration weld has been proposed herein to incorporate the effects of uneven distribution of joint weld stress in the considered XK-joints.http://www.sustain-dpl.com/UploadFile/article/202310031631441421.pdfbearing capacityfracturepartial penetration weldxk-joints |
| spellingShingle | Zhenghua Huang Mahmud Ashraf Tao Zheng Yong Yang Enhe Bao Han Han Analysis of ultimate fracture bearing capacity of CHS XK-joints welds Sustainable Structures bearing capacity fracture partial penetration weld xk-joints |
| title | Analysis of ultimate fracture bearing capacity of CHS XK-joints welds |
| title_full | Analysis of ultimate fracture bearing capacity of CHS XK-joints welds |
| title_fullStr | Analysis of ultimate fracture bearing capacity of CHS XK-joints welds |
| title_full_unstemmed | Analysis of ultimate fracture bearing capacity of CHS XK-joints welds |
| title_short | Analysis of ultimate fracture bearing capacity of CHS XK-joints welds |
| title_sort | analysis of ultimate fracture bearing capacity of chs xk joints welds |
| topic | bearing capacity fracture partial penetration weld xk-joints |
| url | http://www.sustain-dpl.com/UploadFile/article/202310031631441421.pdf |
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