Case Criterion of Crack Onset in Orthotropic Bi-Material Notches

Abstract:

A bi-material notch composed of two orthotropic parts is considered. The stresses and displacements are expressed using the Stroh-Eshelby-Lekhnitskii formalism for plane elasticity. The potential direction of crack initiation is determined from the maximum mean value of the tangential stress or the local minimum of the mean value of the generalized strain energy density factor in both materials [1, 2]. The matched asymptotic procedure is introduced to derive the change of potential energy for the debonding crack and the crack initiated in the determined direction [3].

• Periodical: Key Engineering Materials (Volume 465)
• Pages: 157-160
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.465.157
• Online since: January 2011
• Authors: Tomáš Profant, Jan Klusák, Michal Kotoul
• Keywords: Betti's Reciprocity Theorem, Bi-Material Notch, LES Formalism, Orthotropic Medium

References

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