Numerical analysis of isolated end-flattened steel bars under compression in space trusses
This research aims to characterize the behavior of isolated end-flattened steel bars under compressive loading, in which global instabilities or excessive local deformations represent a significant part of the causes of structural collapse. The association of numerical analyses using the finite ele...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2022-12-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://3.64.71.86/index.php/fis/article/view/3807 |
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| author | Henrique de Araujo Rosa Cruz Luciano Mendes Bezerra Welington Vital da Silva Ramon Silva |
| author_facet | Henrique de Araujo Rosa Cruz Luciano Mendes Bezerra Welington Vital da Silva Ramon Silva |
| author_sort | Henrique de Araujo Rosa Cruz |
| collection | DOAJ |
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This research aims to characterize the behavior of isolated end-flattened steel bars under compressive loading, in which global instabilities or excessive local deformations represent a significant part of the causes of structural collapse. The association of numerical analyses using the finite element method (FEM) with previously collected experimental data is performed, and their respective results are the core object of critical analysis in this work. Numerical simulations are based on the modified Riks method, complemented in part by modal analysis, whose results demonstrate the occurrence of the aforementioned failure modes in prototypes with slenderness ratios varying in the spectrum from 20 to 200. Finally, the analytical formulations that describe the phenomenon from the approach of global and local instabilities incorporated into current normative expressions are applied in a comparison with the results gathered in the numerical approach.
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| format | Article |
| id | doaj-art-44cce0fa765648a3a66c4b4fa034e1b3 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-44cce0fa765648a3a66c4b4fa034e1b32025-02-03T10:27:34ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-12-011763Numerical analysis of isolated end-flattened steel bars under compression in space trussesHenrique de Araujo Rosa Cruz0Luciano Mendes Bezerra1Welington Vital da Silva2Ramon Silva3University of Brasilia, BrazilUniversity of Brasilia, BrazilUniversity of Brasilia, BrazilUniversity of Brasilia, Brazil This research aims to characterize the behavior of isolated end-flattened steel bars under compressive loading, in which global instabilities or excessive local deformations represent a significant part of the causes of structural collapse. The association of numerical analyses using the finite element method (FEM) with previously collected experimental data is performed, and their respective results are the core object of critical analysis in this work. Numerical simulations are based on the modified Riks method, complemented in part by modal analysis, whose results demonstrate the occurrence of the aforementioned failure modes in prototypes with slenderness ratios varying in the spectrum from 20 to 200. Finally, the analytical formulations that describe the phenomenon from the approach of global and local instabilities incorporated into current normative expressions are applied in a comparison with the results gathered in the numerical approach. https://3.64.71.86/index.php/fis/article/view/3807End-flattened steel barsThree-dimensional trussesGlobal and local instabilitiesSteel structures |
| spellingShingle | Henrique de Araujo Rosa Cruz Luciano Mendes Bezerra Welington Vital da Silva Ramon Silva Numerical analysis of isolated end-flattened steel bars under compression in space trusses Fracture and Structural Integrity End-flattened steel bars Three-dimensional trusses Global and local instabilities Steel structures |
| title | Numerical analysis of isolated end-flattened steel bars under compression in space trusses |
| title_full | Numerical analysis of isolated end-flattened steel bars under compression in space trusses |
| title_fullStr | Numerical analysis of isolated end-flattened steel bars under compression in space trusses |
| title_full_unstemmed | Numerical analysis of isolated end-flattened steel bars under compression in space trusses |
| title_short | Numerical analysis of isolated end-flattened steel bars under compression in space trusses |
| title_sort | numerical analysis of isolated end flattened steel bars under compression in space trusses |
| topic | End-flattened steel bars Three-dimensional trusses Global and local instabilities Steel structures |
| url | https://3.64.71.86/index.php/fis/article/view/3807 |
| work_keys_str_mv | AT henriquedearaujorosacruz numericalanalysisofisolatedendflattenedsteelbarsundercompressioninspacetrusses AT lucianomendesbezerra numericalanalysisofisolatedendflattenedsteelbarsundercompressioninspacetrusses AT welingtonvitaldasilva numericalanalysisofisolatedendflattenedsteelbarsundercompressioninspacetrusses AT ramonsilva numericalanalysisofisolatedendflattenedsteelbarsundercompressioninspacetrusses |