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Helical crack-front instability in mixed-mode fracture
Pons Rivero, Antonio Javier; Karma, Alain
Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear; Universitat Politècnica de Catalunya. DONLL - Dinàmica no lineal, òptica no lineal i làsers
[...]We show that the dynamically preferred unstable wavelength is governed by the balance of the destabilizing effect of far-field stresses and the stabilizing effect of cohesive forces on the process zone scale, and we derive a theoretical estimate for this scale using a new propagation law for curved cracks in three dimensions. The rotation angles of coarsened facets are also compared to theoretical predictions and available experimental data.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials::Assaig de fractura
Fracture surfaces

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