Single lap shear stress in hybrid CFRP/Steel composites

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2016

Autores

Lopes, J (Autor) Outra; Stefaniak, D (Autor) Outra; Reis, L (Autor) Outra; Camanho, PP (Autor) FEUP

Ata de Conferência Internacional

Título: XV PORTUGUESE CONFERENCE ON FRACTURE, PCF 2016

Páginas: 58-65

15th Portuguese Conference on Fracture (PCF)

Paco de Arcos, PORTUGAL, FEB 10-12, 2016

Indexação

ISI Web of Knowledge - 0 Citações

Outras Informações

ID Authenticus: P-00M-7YK

DOI: 10.1016/j.prostr.2016.02.009

Abstract (EN): A critical parameter in a hybrid CFRP/steel composites is the shear stress between CFRP plies and steel foils. This paper presents an experimental and numerical research on the single lap shear stress in hybrid CFRP/Steel specimens in accordance with DIN EN ISO 1465. Four different types of specimens were tested: Vacuum basting surface treatment and pickling treatment. For each type of surface treatment two types of specimens were tested: Dry specimens and specimens immersed in water for 1000 h. The results show that vacuum blasting surface treatment is the one that withstands a higher shear stress and is simpler and less hazardous than pickling surface treatment. The results also show that this type of composite has low sensitivity to water absorption. A significant difference between the displacement measured by digital image correlation and the displacement measured by a LVDT was observed. Finite element models are able to predict the maximum shear stress of hybrid composites provided that the constitutive parameters of cohesive elements are validated by experimental results.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8