PSI - Issue 41

Wei Song et al. / Procedia Structural Integrity 41 (2022) 486–491 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 3 (a) Beam directions in FE model; (b) Boundary conditions of the cantilever FE model.

3. Results The fatigue failure locations of cantilever samples with different extracted directions can be seen in Fig. 4. It shows that the failure location for these samples orientates from the end of the cantilever, which is near the fixed side. Comparing the failure specimens for A and B directions shows that these samples are failures from the exact location. Thus, the fatigue life for the specimens extracted from different directions could be compared to differentiate the effect of specimen orientation.

Fig. 4 Ultrasonic bending fatigue failure of cantilever samples with different extracted directions. (a)-(c) Failure specimens of A direction; (d)-(f) Failure specimens of B direction;