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Map of stresses reduced according to the Huber (Mises) hypothesis depending on the angle of orientation of the applied load α in relation to the groove pattern. (a) α = 0° σred max=309 MPa, (b) α = 15° σred max=270 MPa, (c) α = 30° σred max=226 MPa, and (d) α = 45° σred max=220 MPa.
