Buckling Analysis on a Pipe Conveying Fluid under Two Stresses
Pressure pipes have broad applications in aviation, space flight, mechanical engineering, industrial and civil architecture etc. Instability destruction is their main failure mode. Firstly, in this paper, a complex fluid-solid coupling problem was simplified as a buckling problem of a pipe under two...
| Format: | Article |
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| Language: | zho |
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EDP Sciences
2018-12-01
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| Series: | Xibei Gongye Daxue Xuebao |
| Subjects: | |
| Online Access: | https://www.jnwpu.org/articles/jnwpu/pdf/2018/06/jnwpu2018366p1202.pdf |
| _version_ | 1797423022912569344 |
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| collection | DOAJ |
| description | Pressure pipes have broad applications in aviation, space flight, mechanical engineering, industrial and civil architecture etc. Instability destruction is their main failure mode. Firstly, in this paper, a complex fluid-solid coupling problem was simplified as a buckling problem of a pipe under two stresses which were along the pipe wall. The two stresses consisted of a compressive stress which was perpendicular to the pipe wall and a tangential stress which was parallel to the pipe wall. Secondly, the buckling performs of the pressured pipe were discussed by finite element analysis method under a working state and an off-working state, respectively. Some obtained conclusions were drawn as follows by the analysis in this paper.1). Provided the tangential stress is unchanged, by increasing compressive stress eigenvalue buckling critical load increases and nonlinear buckling critical load decreases.2). Provided the compressive stress is unchanged, when the direction of the tangential stress is same as that of the axial pressure, by increasing the absolute value of tangential stress the buckling critical load decreases; provided the compressive stress is unchanged, when the direction of the tangential stress is in the opposite direction of the axial pressure, by increasing the absolute value of tangential stress the buckling critical load increases. |
| first_indexed | 2024-03-09T07:41:24Z |
| format | Article |
| id | doaj.art-95434607b7ec4af0bcdaa01229ccf92b |
| institution | Directory Open Access Journal |
| issn | 1000-2758 2609-7125 |
| language | zho |
| last_indexed | 2024-03-09T07:41:24Z |
| publishDate | 2018-12-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Xibei Gongye Daxue Xuebao |
| spelling | doaj.art-95434607b7ec4af0bcdaa01229ccf92b2023-12-03T04:38:28ZzhoEDP SciencesXibei Gongye Daxue Xuebao1000-27582609-71252018-12-013661202120810.1051/jnwpu/20183661202jnwpu2018366p1202Buckling Analysis on a Pipe Conveying Fluid under Two Stresses01234School of Mechanical Engineering, Taiyuan University of Science and TechnologySchool of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical UniversitySchool of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical UniversitySchool of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical UniversitySchool of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical UniversityPressure pipes have broad applications in aviation, space flight, mechanical engineering, industrial and civil architecture etc. Instability destruction is their main failure mode. Firstly, in this paper, a complex fluid-solid coupling problem was simplified as a buckling problem of a pipe under two stresses which were along the pipe wall. The two stresses consisted of a compressive stress which was perpendicular to the pipe wall and a tangential stress which was parallel to the pipe wall. Secondly, the buckling performs of the pressured pipe were discussed by finite element analysis method under a working state and an off-working state, respectively. Some obtained conclusions were drawn as follows by the analysis in this paper.1). Provided the tangential stress is unchanged, by increasing compressive stress eigenvalue buckling critical load increases and nonlinear buckling critical load decreases.2). Provided the compressive stress is unchanged, when the direction of the tangential stress is same as that of the axial pressure, by increasing the absolute value of tangential stress the buckling critical load decreases; provided the compressive stress is unchanged, when the direction of the tangential stress is in the opposite direction of the axial pressure, by increasing the absolute value of tangential stress the buckling critical load increases.https://www.jnwpu.org/articles/jnwpu/pdf/2018/06/jnwpu2018366p1202.pdfpipebucklingnonlinearcompressive stresstangential stress |
| spellingShingle | Buckling Analysis on a Pipe Conveying Fluid under Two Stresses Xibei Gongye Daxue Xuebao pipe buckling nonlinear compressive stress tangential stress |
| title | Buckling Analysis on a Pipe Conveying Fluid under Two Stresses |
| title_full | Buckling Analysis on a Pipe Conveying Fluid under Two Stresses |
| title_fullStr | Buckling Analysis on a Pipe Conveying Fluid under Two Stresses |
| title_full_unstemmed | Buckling Analysis on a Pipe Conveying Fluid under Two Stresses |
| title_short | Buckling Analysis on a Pipe Conveying Fluid under Two Stresses |
| title_sort | buckling analysis on a pipe conveying fluid under two stresses |
| topic | pipe buckling nonlinear compressive stress tangential stress |
| url | https://www.jnwpu.org/articles/jnwpu/pdf/2018/06/jnwpu2018366p1202.pdf |