Autor(es)

Arbelo, Mariano A. ^[1] ; de Almeida, Sergio Frascino M. ^[1] ; Donadon, Mauricio V. ^[1]

Afiliação do(s) autor(es)

^[1] Inst Tecnol Aeronaut ITA, CTA ITA IEM, BR-12228900 Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: COMPOSITE STRUCTURES; v. 93, n. 2, p. 465-473, JAN 2011.
• Citações Web of Science: 7

Resumo

This paper presents a detailed experimental and numerical investigation on the structural behavior of stiffened composite panels subjected to in-plane shear loads The experimental work includes the development of a test device for post-buckling analyses of laminated panels subjected to shear loads The panels out-of-plane displacement field in the post-buckling regime was experimentally characterized using a non-contact 3-D optical device A test procedure was proposed to obtain reliable and reproducible results The following parameters were established geometry and instrumentation of the specimens test mechanisms, data acquisition procedures and analysis procedures for test data The numerical objective of this work is to Implement a modeling methodology for analysis of composite stiffened panels using finite elements The proposed methodology takes into account large displacements and material nonlinearity effects by using a damage mechanics based progressive failure model Preliminary results for tested specimens with the proposed configuration indicate that the stiffened composite shear webs have significant post-buckling strength (C) 2010 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
• Processo FAPESP: 06/06808-6 - Comportamento estrutural de compositos laminados sujeitos a cargas de impacto.
• Beneficiário: Maurício Vicente Donadon
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado