WIT Press


Numerical Analysis Of BI-material Interface Notch Crack Behaviour

Price

Free (open access)

Paper DOI

10.2495/CON010071

Volume

32

Pages

10

Published

2001

Size

721 kb

Author(s)

B. Bachir Bouiadjra, M. Belhouari, M. Benguediab & B. Serier

Abstract

Numerical analysis of bi-material interface notch crack behaviour B.Bachir Bouiadjra, M.Belhouari, M.Benguediab & B.Serier L.E.C.M, Departement of Mechanical Engineering, University ofSidi Abstract The finite element method is extended to the analysis of the behaviour of an interface crack in bi-material specimen with a central hole. First, only the notch effect is considered , the field of stress and variation of the stress concentration factor as a function of the Young's modulus ratio are determined. Secondly, the notch interface crack behaviour is investigated, the variations of the stress intensity factor versus the Young's modulus ratio and crack length are shown as well as the distribution of stresses in the plate and along the interface. 1 Introduction Fracture along an interface between phases plays a major role in limiting the toughness and ductility of multi-phase materials [1]. The fracture of bi-materials have a singular behaviour due to the difference between elastic p

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