Constructal Design and computational modeling applied to the biaxial elasto-plastic buckling of plates with two elliptical perforations
DOI:
https://doi.org/10.14808/sci.plena.2023.119915Keywords:
thin steel plates, numerical simulation, geometric evaluationAbstract
This study used computational modeling to perform a geometric evaluation based on the Constructal Design method regarding steel plates with two elliptical perforations subjected to biaxial elasto-plastic buckling. Keeping constant the material volume of the perforated plates, the worst and best results between plates with one and two perforations were compared. For this purpose, a rectangular reference plate without perforations was adopted, from which a portion of material was removed by inserting elliptical perforations. The parameter, which represents the ratio between the perforations volume and the reference plate material volume, was adopted with a value of = 0.15. Each plate with two perforations was submitted to biaxial compressive loads, and then the influence that the relation of the perforations dimensions has on the normalized ultimate buckling stress was evaluated. The results showed that the best geometric configuration, among the geometries analyzed with two perforations, is the one with a perforation side ratio equal to 0.6, leading to a 24.9% increase in the ultimate buckling stress and better stress distribution, when compared to the geometry with perforation side ratio equal to 1.0, which conducted to the worst results among all evaluated cases.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Andrei Ferreira Lançanova, Bruna Fick Pacheco, Eduarda Machado Rodrigues, Luiz Alberto Oliveira Rocha, Elizaldo Domingues dos Santos, Thiago da Silveira, Liércio André Isoldi
![Creative Commons License](http://i.creativecommons.org/l/by/4.0/88x31.png)
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work