The Critical Buckling Load of Column under Axial Compressive Force
Abstract Recent buckling failures of pipelines in permafrost regions reveal that buckling phenomenon is related to the initial displacement of the pipeline due to frost heave. The aim of this study is to investigate whether this relation influent widely the columns applied axial compressive forces....
| Published in: | IOP Conference Series: Materials Science and Engineering |
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| Main Authors: | , , , , |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
IOP Publishing
2020
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1088/1757-899x/794/1/012075 https://iopscience.iop.org/article/10.1088/1757-899X/794/1/012075/pdf https://iopscience.iop.org/article/10.1088/1757-899X/794/1/012075 |
| Summary: | Abstract Recent buckling failures of pipelines in permafrost regions reveal that buckling phenomenon is related to the initial displacement of the pipeline due to frost heave. The aim of this study is to investigate whether this relation influent widely the columns applied axial compressive forces. An apparatus was constructed to measure the loads applied on the specimens and the displacements of the specimens. The curve between the two measurement results are shown to lead to an accurate determination of the critical buckling load. Furthermore, a simulation calculation was conducted through finite element method, the numerical results are consistent with the experiment ones. We found that the critical buckling load is inversely correlated to the initial displacement, and further fitting the curves leads to a linear relation. |
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