Mixed-mode I+II fatigue/fracture characterization of composite bonded joints using the Single-Leg Bending test

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Fernandez, MV (Author) Other; de Moura, MFSF (Author) FEUP; da Silva, LFM (Author) FEUP; Marques, AT (Author) FEUP

Journal

Title: Composites Part A: Applied Science and Manufacturing

Vol. 44

Pages: 63-69

ISSN: 1359-835X

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 35 Citations

ISI Web of Science

Scopus - 41 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Authenticus ID: P-002-26A

DOI: 10.1016/j.compositesa.2012.08.009

Abstract (EN): In this work, fatigue/fracture characterization of composite bonded joints is performed using the Single-Leg Bending (SLB) test. The SLB test provides a mixed-mode I + II loading with a fixed mode mixity. Specimens of carbon fibre reinforced epoxy bonded with a ductile epoxy adhesive were tested considering two load levels. The applicability of the Paris-law establishing a relationship between the fatigue crack growth rate and the variation of the energy release rate was analyzed. An equivalent crack method was used to overcome the difficulties associated to crack monitoring during the fatigue tests. Consistent results were obtained for the lower load level, thus proving the adequacy of the SLB test concerning fatigue/fracture characterization of bonded joints.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7