Emergence of echelon cracks under mixed-mode I + III loading

Abstract eng:
The development of echelon crack patterns under mixed-mode I + III loading conditions is examined first through carefillly designed experiments performed on transparent specimens. These experiments present a direct visual evidence of the mechanisms involved in the formation of the echelon pattern of cracks and aid in the development of a model for their formation. This model is finally established through direct numerical simulations of mixed-mode I + III within the framework of phase-field methodology for fracture.

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