PSI - Issue 33

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

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5. Conclusions

The hoop stress σ θ is proposed as the governing factor of the anisotropic fracture behaviour for the case of steels with a high cumulative plastic strain (cold drawing degree ≥ 3) and maximum triaxiality factor (notches A and B). This hoop stress is called cleavage hoop stress for starting and propagating the enlarged & oriented cleavage fracture in a direction parallel to the longitudinal wire axis.

6. Epilogue: Revisiting John Ford’s Monument Valley

The fracture profile shown in the right-hand side of Figs. 2, 3 and 5 resembles the beautiful topography of Monument Valley (Fig. 7), where John Ford recorded many of his master works, so that a new term was coined by Toribio (2018) to describe this kind of anisotropic fracture as Monument Valley Profile (MVP).

Fig. 7. Monument Valley in the USA .

References

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