Pure mode II fracture characterization of composite bonded joints

• Type: Article in International Scientific Journal
• Date: 2009

Authors

M. F. S. F. de Moura (Author) FEUP; R. D. S. G. Campilho (Author) Other; J. P. M. Gonçalves (Author) Other

Journal

Title: International Journal of Solids and Structures

Vol. 46 No. 6

Pages: 1589-1595

ISSN: 0020-7683

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 177 Citations

Scopus - 198 Citations

INSPEC

COMPENDEX

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-003-MGM

DOI: 10.1016/j.ijsolstr.2008.12.001

Abstract (EN): A new data reduction scheme is proposed for measuring the critical fracture energy of adhesive joints under pure mode II loading using the End Notched Flexure test. The method is based on the crack equivalent concept and does not require crack length monitoring during propagation, which is very difficult to perform accurately in these tests. The proposed methodology also accounts for the energy dissipated at the Fracture Process Zone which is not negligible when ductile adhesives are used. Experimental tests and numerical analyses using a trapezoidal cohesive mixed-mode damage model demonstrated the good performance of the new method. namely when compared to classical data reduction schemes. An inverse method was used to determine the cohesive properties, fitting the numerical and experimental load-displacement curves. Excellent agreement between the numerical and experimental R-curves was achieved demonstrating the effectiveness of the proposed method.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7