Buckling Analysis of a Large Shelter with Composites
We present here linear and nonlinear finite element analyses of a newly designed deployable rapid assembly shelter (DRASH J) manufactured by DHS Systems. The structural analysis is carried out in three stages. Firstly, single composite tubes (struts) under three-point bending are modeled with five l...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/23/7196 |
| _version_ | 1797507480555618304 |
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| author | Sheldon Wang Jianyao Mou |
| author_facet | Sheldon Wang Jianyao Mou |
| author_sort | Sheldon Wang |
| collection | DOAJ |
| description | We present here linear and nonlinear finite element analyses of a newly designed deployable rapid assembly shelter (DRASH J) manufactured by DHS Systems. The structural analysis is carried out in three stages. Firstly, single composite tubes (struts) under three-point bending are modeled with five layers of orthotropic materials in three different orientations and the simulation results are compared with the actual test data for validation. Secondly, a comprehensive structural model for the entire shelter is constructed with the consideration of two types of strut scissor points, namely natural and forced scissor (crossing) points, as well as partial-fixed hub joints, which allow rotations along individual hub slots (grooves). Finally, a simplified structural model is created by introducing fixed joints for the scissor points as well as rigid links for the hubs. With sufficient verifications with experiments and different modeling methods, linear and nonlinear finite element analyses are then carried out for both the comprehensive and simplified shelter models. Based on the simulation results, we are able to identify a few critical issues pertaining to proper design and modifications of such shelter systems, such as various end wall supports pertaining to the overall structural stability. |
| first_indexed | 2024-03-10T04:50:03Z |
| format | Article |
| id | doaj.art-26d49988a9534df7819a16cd8e9abad5 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T04:50:03Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-26d49988a9534df7819a16cd8e9abad52023-11-23T02:39:45ZengMDPI AGMaterials1996-19442021-11-011423719610.3390/ma14237196Buckling Analysis of a Large Shelter with CompositesSheldon Wang0Jianyao Mou1McCoy School of Engineering, Midwestern State University, 3410 Taft Blvd., Wichita Falls, TX 76310, USACRYOPAK/TCP RELIABLE, 551 Raritan Center Parkway, Edison, NJ 08837, USAWe present here linear and nonlinear finite element analyses of a newly designed deployable rapid assembly shelter (DRASH J) manufactured by DHS Systems. The structural analysis is carried out in three stages. Firstly, single composite tubes (struts) under three-point bending are modeled with five layers of orthotropic materials in three different orientations and the simulation results are compared with the actual test data for validation. Secondly, a comprehensive structural model for the entire shelter is constructed with the consideration of two types of strut scissor points, namely natural and forced scissor (crossing) points, as well as partial-fixed hub joints, which allow rotations along individual hub slots (grooves). Finally, a simplified structural model is created by introducing fixed joints for the scissor points as well as rigid links for the hubs. With sufficient verifications with experiments and different modeling methods, linear and nonlinear finite element analyses are then carried out for both the comprehensive and simplified shelter models. Based on the simulation results, we are able to identify a few critical issues pertaining to proper design and modifications of such shelter systems, such as various end wall supports pertaining to the overall structural stability.https://www.mdpi.com/1996-1944/14/23/7196finite element analysiscollapsenonlinear analysisbucklingdeployable shelter |
| spellingShingle | Sheldon Wang Jianyao Mou Buckling Analysis of a Large Shelter with Composites Materials finite element analysis collapse nonlinear analysis buckling deployable shelter |
| title | Buckling Analysis of a Large Shelter with Composites |
| title_full | Buckling Analysis of a Large Shelter with Composites |
| title_fullStr | Buckling Analysis of a Large Shelter with Composites |
| title_full_unstemmed | Buckling Analysis of a Large Shelter with Composites |
| title_short | Buckling Analysis of a Large Shelter with Composites |
| title_sort | buckling analysis of a large shelter with composites |
| topic | finite element analysis collapse nonlinear analysis buckling deployable shelter |
| url | https://www.mdpi.com/1996-1944/14/23/7196 |
| work_keys_str_mv | AT sheldonwang bucklinganalysisofalargeshelterwithcomposites AT jianyaomou bucklinganalysisofalargeshelterwithcomposites |