PSI - Issue 33

Jesús Toribio et al. / Procedia Structural Integrity 33 (2021) 1219–1224 Jesús Toribio / Porcedia Structural Integrity 00 (2021) 000–000

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Fig. 5. Distribution of the hoop stress along the net section of the sample (up) and its consequence on the anisotropic fracture behaviour (down). Both front view (left) and side view (right) are included.

Observing the hoop stress distribution and the result caused by it on the fracture behaviour, i.e., the formation of a vertical fracture step showing a fracture surface made by oriented and enlarged cleavage (Fig. 6), it can be established that the anisotropic fracture behaviour buy longitudinal splitting or delamination is promoted by the cleavage hoop stress .

Fig. 6. Fractograph of the vertical fracture wall.