Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads
The paper proposes a novel type of stiffener designed to bear bending loads by exploiting internal pressure effects. The stiffener is made of two adjacent thin-walled pipes (r/t≥50) jointed with a connecting strip. Such a structure is shown to have higher performance against buckling failure compare...
| Main Authors: | , , , , |
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/33599/ |
| _version_ | 1848794664590639104 |
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| author | Polenta, Valerio Garvey, Seamus D. Chronopoulos, Dimitrios Long, Andy C. Morvan, Herve |
| author_facet | Polenta, Valerio Garvey, Seamus D. Chronopoulos, Dimitrios Long, Andy C. Morvan, Herve |
| author_sort | Polenta, Valerio |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The paper proposes a novel type of stiffener designed to bear bending loads by exploiting internal pressure effects. The stiffener is made of two adjacent thin-walled pipes (r/t≥50) jointed with a connecting strip. Such a structure is shown to have higher performance against buckling failure compared to a single pipe and its geometry allows for good exploitation of internal pressurisation.
The study is conducted by using the FEA software ANSYS and the analysis technique is the linear perturbation buckling analysis. Internal pressure ranges from 0 to 1.4 MPa. The buckling mechanisms are observed for a set of models with different values of length, wall thickness and geometric variation of the cross-section. It is shown that two different buckling modes can take place. However, for a given geometry, the level of pressure can alter the behaviour and lead to one mode rather than the other one.
Potential of the presented structure is maximised by the use of high performance materials and a possible aerospace engineering application is presented. |
| first_indexed | 2025-11-14T19:19:47Z |
| format | Article |
| id | nottingham-33599 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:19:47Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-335992020-05-04T17:58:39Z https://eprints.nottingham.ac.uk/33599/ Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads Polenta, Valerio Garvey, Seamus D. Chronopoulos, Dimitrios Long, Andy C. Morvan, Herve The paper proposes a novel type of stiffener designed to bear bending loads by exploiting internal pressure effects. The stiffener is made of two adjacent thin-walled pipes (r/t≥50) jointed with a connecting strip. Such a structure is shown to have higher performance against buckling failure compared to a single pipe and its geometry allows for good exploitation of internal pressurisation. The study is conducted by using the FEA software ANSYS and the analysis technique is the linear perturbation buckling analysis. Internal pressure ranges from 0 to 1.4 MPa. The buckling mechanisms are observed for a set of models with different values of length, wall thickness and geometric variation of the cross-section. It is shown that two different buckling modes can take place. However, for a given geometry, the level of pressure can alter the behaviour and lead to one mode rather than the other one. Potential of the presented structure is maximised by the use of high performance materials and a possible aerospace engineering application is presented. Elsevier 2016-08-01 Article PeerReviewed Polenta, Valerio, Garvey, Seamus D., Chronopoulos, Dimitrios, Long, Andy C. and Morvan, Herve (2016) Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads. Thin-Walled Structures, 105 . pp. 81-89. ISSN 0263-8231 Buckling; internal pressure; pure bending; thin-walled shell http://dx.doi.org/10.1016/j.tws.2016.04.002 doi:10.1016/j.tws.2016.04.002 doi:10.1016/j.tws.2016.04.002 |
| spellingShingle | Buckling; internal pressure; pure bending; thin-walled shell Polenta, Valerio Garvey, Seamus D. Chronopoulos, Dimitrios Long, Andy C. Morvan, Herve Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads |
| title | Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads |
| title_full | Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads |
| title_fullStr | Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads |
| title_full_unstemmed | Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads |
| title_short | Novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads |
| title_sort | novel stiffeners exploiting internal pressurisation to enhance buckling behaviour under bending loads |
| topic | Buckling; internal pressure; pure bending; thin-walled shell |
| url | https://eprints.nottingham.ac.uk/33599/ https://eprints.nottingham.ac.uk/33599/ https://eprints.nottingham.ac.uk/33599/ |