Finite Element Analysis of Secondary Cracks at a Crack Front under Pure Mode III Loading

Abstract:

Several hypotheses and concepts exist for the prediction of crack deflection angles from the analysis of the undisturbed stress distribution at the crack front. In this paper, a finite element analysis of small penny shaped secondary cracks with deflection angles ψ₀ = π/4 at a pure mode III loaded crack front is presented. The results are compared with the solutions of the well-known 3D fracture criteria. The fracture mechanical analysis is performed by the highly effective MVCCI-method.

• Periodical: Key Engineering Materials (Volumes 488-489)
• Pages: 605-608
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.488-489.605
• Online since: September 2011
• Authors: Matthias Ressel, Holger Theilig
• Keywords: Crack Growth, Fracture Criteria, Initial Secondary Cracks, Mixed-Mode Loading

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