Dynamic buckling response of buried X70 steel pipe with bolted flange connection under two-charge explosion loads
It is of great significance to investigate the dynamic response of pipes under blasting loads for the operation, assessment, and repair of pipes. However, there are few studies available on the dynamic buckling response of pipes under multiple explosion loads. In the present study, pipe-soil couplin...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-03-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024028573 |
| _version_ | 1797259876305469440 |
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| author | Yandong Qu Ruixue Zhang Jinda Wu Lei Xu Shengnan Zuo Baiyuan Xu |
| author_facet | Yandong Qu Ruixue Zhang Jinda Wu Lei Xu Shengnan Zuo Baiyuan Xu |
| author_sort | Yandong Qu |
| collection | DOAJ |
| description | It is of great significance to investigate the dynamic response of pipes under blasting loads for the operation, assessment, and repair of pipes. However, there are few studies available on the dynamic buckling response of pipes under multiple explosion loads. In the present study, pipe-soil coupling 3-D models are established to investigate the dynamic buckling response of X70 steel pipe with bolted flange connection (BFC) under two-charge explosion loads (Charge A lied on the ground surface and Charge B lied in the soil). The main influencing factors are also discussed, including explosion mode, internal pressure, interval time, mass ratio of charges, and diameter-to-thickness ratio (D/t ratio). When Charges A and B were exploded simultaneously, it is found that the non-pressurized X70 pipe produced more significant cross-sectional deformation than in one-point explosion (Charge A or B). Increasing D/t ratio is advantageous for the anti-explosion of the pipe with BFC. Suitable internal pressure can effectively prevent the buckling deformation of the pipe. Compared with the common straight pipe, BFC system can effectively decrease the local buckling deformation and improve the anti-explosion ability of the pipe due to its higher local stiffness and energy absorption. |
| first_indexed | 2024-03-07T14:29:13Z |
| format | Article |
| id | doaj.art-94514389ba004d8eba32408bd9e6e3cb |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-24T23:16:23Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
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| series | Heliyon |
| spelling | doaj.art-94514389ba004d8eba32408bd9e6e3cb2024-03-17T07:56:24ZengElsevierHeliyon2405-84402024-03-01105e26826Dynamic buckling response of buried X70 steel pipe with bolted flange connection under two-charge explosion loadsYandong Qu0Ruixue Zhang1Jinda Wu2Lei Xu3Shengnan Zuo4Baiyuan Xu5College of Civil Engineering, Dalian Minzu University, Dalian 116650, China; Corresponding author.School of Civil and Architectural Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaSchool of Civil and Architectural Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaCollege of Civil Engineering, Dalian Minzu University, Dalian 116650, ChinaSchool of Civil and Architectural Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaSchool of Civil and Architectural Engineering, Liaoning University of Technology, Jinzhou 121001, ChinaIt is of great significance to investigate the dynamic response of pipes under blasting loads for the operation, assessment, and repair of pipes. However, there are few studies available on the dynamic buckling response of pipes under multiple explosion loads. In the present study, pipe-soil coupling 3-D models are established to investigate the dynamic buckling response of X70 steel pipe with bolted flange connection (BFC) under two-charge explosion loads (Charge A lied on the ground surface and Charge B lied in the soil). The main influencing factors are also discussed, including explosion mode, internal pressure, interval time, mass ratio of charges, and diameter-to-thickness ratio (D/t ratio). When Charges A and B were exploded simultaneously, it is found that the non-pressurized X70 pipe produced more significant cross-sectional deformation than in one-point explosion (Charge A or B). Increasing D/t ratio is advantageous for the anti-explosion of the pipe with BFC. Suitable internal pressure can effectively prevent the buckling deformation of the pipe. Compared with the common straight pipe, BFC system can effectively decrease the local buckling deformation and improve the anti-explosion ability of the pipe due to its higher local stiffness and energy absorption.http://www.sciencedirect.com/science/article/pii/S2405844024028573Bolted flange connectionexplosion loadbuckling responsenumerical simulationX70 pipe |
| spellingShingle | Yandong Qu Ruixue Zhang Jinda Wu Lei Xu Shengnan Zuo Baiyuan Xu Dynamic buckling response of buried X70 steel pipe with bolted flange connection under two-charge explosion loads Heliyon Bolted flange connection explosion load buckling response numerical simulation X70 pipe |
| title | Dynamic buckling response of buried X70 steel pipe with bolted flange connection under two-charge explosion loads |
| title_full | Dynamic buckling response of buried X70 steel pipe with bolted flange connection under two-charge explosion loads |
| title_fullStr | Dynamic buckling response of buried X70 steel pipe with bolted flange connection under two-charge explosion loads |
| title_full_unstemmed | Dynamic buckling response of buried X70 steel pipe with bolted flange connection under two-charge explosion loads |
| title_short | Dynamic buckling response of buried X70 steel pipe with bolted flange connection under two-charge explosion loads |
| title_sort | dynamic buckling response of buried x70 steel pipe with bolted flange connection under two charge explosion loads |
| topic | Bolted flange connection explosion load buckling response numerical simulation X70 pipe |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024028573 |
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