A brief discussion on (pure mode I) fatigue crack growth rate data in 5HS weave fabric composites: Evaluation of empirical relations

Autor(es)

Shiino, Marcos Yutaka ^[1] ; Alderliesten, Reyndert Christiaan ^[2] ; Donadon, Mauricio Vicente ^[3] ; Hilario Cioffi, Maria Odila ^[4]

Afiliação do(s) autor(es)

^[1] UNESP Univ Estadual Paulista, Inst Ciencia & Tecnol, Dept Engn Ambiental, Campus Sao Jose dos Campos, Rodovia Presidente Dut, BR-12247004 Sao Jose Dos Campos, SP - Brazil

^[2] Delft Univ Technol TUDelft, Fac Aerosp Engn, Aerosp Struct & Mat, Kluyverweg 1, NL-2629 HS Delft - Netherlands

^[3] ITA, Praca Marechal Ar Eduardo Gomes, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[4] UNESP Univ Estadual Paulista, Fac Engn Guaratingueta, Fatigue & Aeronaut Mat Res Grp, Dept Mat & Tecnol, Av Dr Ariberto Pereira Cunha 333, BR-12516410 Guaratingueta, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF FATIGUE; v. 84, p. 97-103, MAR 2016.
• Citações Web of Science: 4

Resumo

A major concern in laminated composites for structural applications has been crack nucleation between plies and its propagation through the interface. A better comprehension of stable crack propagation may lead to more reliable predictions of the rate with which cracks grow in weave fabric laminated composites. To this aim, a number of empirical relationships proposed in the literature were studied for their applicability to satin weave fabric (5HS) composite with spread tows. In order to understand the fatigue delamination process, Double Cantilever Beam specimens were submitted to cyclic loading, and their respective da/dN vs strain energy release rate (SERR) data collected and correlated to these empirical relationships. Despite that the empirical or semi-empirical relations fit equally well to the data, the well-known Hartman-Schijve equation was adopted. This equation was properly modified according to the fracture surface investigation which had its fracture patterns qualitatively correlated with SERA parameters. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 11/01937-0 - Taxa de delaminação em compósitos 5HS carbono/epóxi processado via RTM: relação do carregamento axial tração-tração como modos I e II puros
• Beneficiário: Marcos Yutaka Shiino
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 12/07646-0 - Avaliação do efeito do gradiente de pressão no processamento RTM em laminado 5HS por DCB no modo i em fadiga
• Beneficiário: Marcos Yutaka Shiino
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado