WIT Press


Computation Of The Stress Intensity Factors For Repaired Cracks With Bonded Composite Patch In Mode I And Mixed Mode

Price

Free (open access)

Paper DOI

10.2495/HPS020371

Volume

59

Pages

10

Published

2002

Size

425 kb

Author(s)

B. Bachir Bouiadjra, M. Belhouari, B. Serier and T. Achour.

Abstract

In this study, the finite element method is used to analyse the behaviour of repaired cracks with bonded composite patches in mode I and mixed mode by computing the stress intensity factors at the crack tip. The effects of the patch size and the adhesive properties on the stress intensity factors variation were highlighted. The plot of the stress intensity factors according to the crack length in mode I, shows that the stress intensity factor exhibits an asymptotic behaviour as the crack length increases. In mixed mode, the obtained results show that the Mode I stress intensity factor is more affected by the presence of the patch than that of mode 11.

Keywords