Tensile fracture characterization of adhesive joints by standard and optical techniques

Constante, C.J.; Campilho, Raul; Moura, D.C.

http://hdl.handle.net/10400.22/7384

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Autores

Constante, C.J.

Campilho, Raul

Moura, D.C.

Resumo(s)

The use of adhesive joints has increased in recent decades due to its competitive features compared with traditional methods. This work aims to estimate the tensile critical strain energy release rate (GIC) of adhesive joints by the Double-Cantilever Beam (DCB) test. The J-integral is used since it enables obtaining the tensile Cohesive Zone Model (CZM) law. An optical measuring method was developed for assessing the crack tip opening (δn) and adherends rotation (θo). The proposed CZM laws were best approximated by a triangular shape for the brittle adhesive and a trapezoidal shape for the two ductile adhesives.

Palavras-chave

Aluminium alloys R-curves J-integral Fracture toughness Double-Cantilever Beam

URI

http://hdl.handle.net/10400.22/7384

Editora

Elsevier

DOI

10.1016/j.engfracmech.2015.02.010

Coleções

ISEP – DEM – Artigos

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