Single lap shear stress in hybrid CFRP/Steel composites

• Type: Article in International Conference Proceedings Book
• Date: 2016

Authors

Lopes, J (Author) Other; Stefaniak, D (Author) Other; Reis, L (Author) Other; Camanho, PP (Author) FEUP

Conference proceedings International

Title: XV PORTUGUESE CONFERENCE ON FRACTURE, PCF 2016

Pages: 58-65

15th Portuguese Conference on Fracture (PCF)

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

Indexing

ISI Web of Knowledge - 0 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8