PSI - Issue 47

Gianmarco Villani et al. / Procedia Structural Integrity 47 (2023) 873–881 G. Villani et al. / Structural Integrity Procedia 00 (2023) 000–000

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Fig. 5. Workflow of the computing procedure.

(a) (b) Fig. 6. (a) Meshed total volume; (b) Detailed mesh on the cracked volume and crack front.

circular shape during the propagation. Looking at the stress state on the crack front (Fig. 7c), it is possible to justify this result: the stress state components are equal along the semi-axes a and b ; therefore, considering the stress intensity factor approach, representative of the stress state, the propagation of the semi-axes maintains the circular shape.