Hygrothermal effects on the fatigue delamination growth onset in interlayer toughened CFRP joints

Author(s)

Gonzalez Ramirez, Francis Mariana ^[1] ; Garpelli, Felipe Parise ^{[1, 2, 3]} ; Mendoca Sales, Rita de Cassia ^{[1, 3, 4]} ; Candido, Geraldo Mauricio ^{[1, 3]} ; Arbelo, Mariano Andres ^{[1, 3]} ; Shiino, Marcos Yutaka ^[5] ; Donadon, Mauricio Vicente ^{[1, 3]}

Affiliation

^[1] Inst Tecnol Aeronaut, Div Engn Aeronaut, BR-12228900 Sao Paulo - Brazil

^[2] Inst Pesquisas Tecnol, Lab Estruturas Leves, BR-12210131 Sao Paulo - Brazil

^[3] Garpelli, Felipe Parise, Inst Pesquisas Tecnol, Lab Estruturas Leves, BR-12210131 Sao Paulo, Brazil.Gonzalez Ramirez, Francis Mariana, Inst Tecnol Aeronaut, Div Engn Aeronaut, BR-12228900 Sao Paulo - Brazil

^[4] Fac Tecnol Sao Jose dos Campos, BR-12247004 Sao Paulo - Brazil

^[5] Univ Estadual Paulista, Inst Ciencia & Tecnol, BR-12224300 Sao Paulo - Brazil

• Document type: Journal article
• Source: INTERNATIONAL JOURNAL OF FATIGUE; v. 138, SEP 2020.
• Web of Science Citations: 0

Abstract

Aeronautic structures are exposed to a great variety of temperatures and humid environments during service. Nowadays, it is known that the combined influence of moisture and temperature induces further detrimental effects on the fatigue behavior of bonded joints when compared to the influence of each isolated condition. The effect of hygrothermal pre-conditioning on the fatigue delamination growth onset of different bonded technologies was investigated. This paper provides a material database for composite-joints tested under different environments and gives important insights on the failure mechanisms observed under cyclic loadings. This information can be latter used to validate analytical and numerical models. (AU)

• FAPESP's process: 15/16733-2 - Modelling of bonded joints in composite material structures for aeronautic applications
• Grantee: Mariano Andrés Arbelo
• Support Opportunities: Scholarships in Brazil - Post-Doctoral