A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception
This work presents a new metamodel for reinforced panels under compressive loads, typically used in light-weight aircraft structures. The metamodel represents a replicable cell structure of integrally machined panels. The presented formulation for conception is based on the synthesis of four stabili...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Marcílio Alves
|
| Series: | Latin American Journal of Solids and Structures |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000200005&lng=en&tlng=en |
| _version_ | 1819030335345655808 |
|---|---|
| author | Alessandro Teixeira Neto Flávio Luiz de Silva Bussamra Henrique Araújo de Castro e Silva |
| author_facet | Alessandro Teixeira Neto Flávio Luiz de Silva Bussamra Henrique Araújo de Castro e Silva |
| author_sort | Alessandro Teixeira Neto |
| collection | DOAJ |
| description | This work presents a new metamodel for reinforced panels under compressive loads, typically used in light-weight aircraft structures. The metamodel represents a replicable cell structure of integrally machined panels. The presented formulation for conception is based on the synthesis of four stability criteria: section crippling, web buckling, flange buckling and column collapse. The aluminum alloy, a typical choice in modern aircraft industry, is selected and the structure is expected to work in the linear elastic domain. In order to evaluate the accuracy and to validate the analytical tool, the procedure is applied in the pre-sizing of the fuselage basic structural components of a 9-passenger executive aircraft. The pull-up maneuver, one of the critical load conditions in most of aircrafts, causes the maximum compressive stresses in lower fuselage panels. Finite element models are presented to the resulting fuselage configuration. The optimal configuration achieved through the application of the analytical tool yields to an innovative structure from those usually adopted in the aeronautical industry. This structural configuration is presented and discussed. The developed metamodel proved to be effective, presenting satisfactory results with adequate accuracy for the initial stages of light-weight aircraft structure. |
| first_indexed | 2024-12-21T06:28:31Z |
| format | Article |
| id | doaj.art-cd90f012eabd48cb8c5e388f38fa982f |
| institution | Directory Open Access Journal |
| issn | 1679-7825 |
| language | English |
| last_indexed | 2024-12-21T06:28:31Z |
| publisher | Marcílio Alves |
| record_format | Article |
| series | Latin American Journal of Solids and Structures |
| spelling | doaj.art-cd90f012eabd48cb8c5e388f38fa982f2022-12-21T19:13:04ZengMarcílio AlvesLatin American Journal of Solids and Structures1679-782511222324410.1590/S1679-78252014000200005S1679-78252014000200005A new metamodel for reinforced panels under compressive loads and its application to the fuselage conceptionAlessandro Teixeira Neto0Flávio Luiz de Silva Bussamra1Henrique Araújo de Castro e Silva2Instituto Tecnológico de AeronáuticaInstituto Tecnológico de AeronáuticaInstituto Tecnológico de AeronáuticaThis work presents a new metamodel for reinforced panels under compressive loads, typically used in light-weight aircraft structures. The metamodel represents a replicable cell structure of integrally machined panels. The presented formulation for conception is based on the synthesis of four stability criteria: section crippling, web buckling, flange buckling and column collapse. The aluminum alloy, a typical choice in modern aircraft industry, is selected and the structure is expected to work in the linear elastic domain. In order to evaluate the accuracy and to validate the analytical tool, the procedure is applied in the pre-sizing of the fuselage basic structural components of a 9-passenger executive aircraft. The pull-up maneuver, one of the critical load conditions in most of aircrafts, causes the maximum compressive stresses in lower fuselage panels. Finite element models are presented to the resulting fuselage configuration. The optimal configuration achieved through the application of the analytical tool yields to an innovative structure from those usually adopted in the aeronautical industry. This structural configuration is presented and discussed. The developed metamodel proved to be effective, presenting satisfactory results with adequate accuracy for the initial stages of light-weight aircraft structure.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000200005&lng=en&tlng=enstructural optimizationstructural stabilityreinforced panels |
| spellingShingle | Alessandro Teixeira Neto Flávio Luiz de Silva Bussamra Henrique Araújo de Castro e Silva A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception Latin American Journal of Solids and Structures structural optimization structural stability reinforced panels |
| title | A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception |
| title_full | A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception |
| title_fullStr | A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception |
| title_full_unstemmed | A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception |
| title_short | A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception |
| title_sort | new metamodel for reinforced panels under compressive loads and its application to the fuselage conception |
| topic | structural optimization structural stability reinforced panels |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000200005&lng=en&tlng=en |
| work_keys_str_mv | AT alessandroteixeiraneto anewmetamodelforreinforcedpanelsundercompressiveloadsanditsapplicationtothefuselageconception AT flavioluizdesilvabussamra anewmetamodelforreinforcedpanelsundercompressiveloadsanditsapplicationtothefuselageconception AT henriquearaujodecastroesilva anewmetamodelforreinforcedpanelsundercompressiveloadsanditsapplicationtothefuselageconception AT alessandroteixeiraneto newmetamodelforreinforcedpanelsundercompressiveloadsanditsapplicationtothefuselageconception AT flavioluizdesilvabussamra newmetamodelforreinforcedpanelsundercompressiveloadsanditsapplicationtothefuselageconception AT henriquearaujodecastroesilva newmetamodelforreinforcedpanelsundercompressiveloadsanditsapplicationtothefuselageconception |