| Texto completo | |
| Autor(es): |
Arbelo, Mariano A.
[1]
;
de Almeida, Sergio F. M.
[2]
;
Donadon, Mauricio V.
[2]
;
Rett, Sandro R.
[3]
;
Degenhardt, Richard
[4]
;
Castro, Saullo G. P.
[1, 5]
;
Kalnins, Kaspars
[6]
;
Ozolins, Olgerts
[6]
Número total de Autores: 8
|
| Afiliação do(s) autor(es): | [1] Private Univ Appl Sci Gottingen, PFH, D-21684 Stade - Germany
[2] Technol Inst Aeronaut, ITA, Dept Mech Engn, Sao Jose Dos Campos, SP - Brazil
[3] Inst Aeronaut & Space, Brazilian Air Force, FAB DCTA IAE ALA, Sao Jose Dos Campos, SP - Brazil
[4] DLR, Inst Composite Struct & Adapt Syst, Braunschweig - Germany
[5] Brazilian Aerosp Co, Embraer, Sao Jose Dos Campos, SP - Brazil
[6] Riga Tech Univ, Inst Mat & Struct, Riga - Latvia
Número total de Afiliações: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | THIN-WALLED STRUCTURES; v. 79, p. 119-128, JUN 2014. |
| Citações Web of Science: | 14 |
| Resumo | |
Nondestructive experimental methods to calculate the buckling load of imperfection sensitive thin-walled structures are one of the most important techniques for the validation of new structures and numerical models of large scale aerospace structures. Vibration correlation technique (VCT) allows determining equivalent boundary conditions and buckling load for several types of structures without reaching the instability point. VCT is already widely used for beam structures, but the technique is still under development for thin-walled plates and shells. This paper intends to explain the capabilities and current limitations of this technique applied to two types of structures under buckling conditions: flat plates and cylindrical shells prone to buckling. Experimental results for a flat plate and a cylindrical shell are presented together with reliable finite element models for both cases. Preliminary results showed that the VCT can be used to determine the realistic boundary conditions of a given test setup, providing valuable data for the estimation of the buckling load by finite element models. Also numerical results herein presented show that VCT can be used as a nondestructive tool to estimate the buckling load of unstiffened cylindrical shells. Experimental tests are currently under development to further validate the approach proposed herein. (C) 2014 Elsevier Ltd. All rights reserved. (AU) | |
| Processo FAPESP: | 08/05345-8 - Desenvolvimento de Procedimentos de Projeto de Painéis Reforçados em Estruturas Aeronáuticas de Materiais Compósitos |
| Beneficiário: | Mariano Andrés Arbelo |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |