Q1/ For the element shown in figure 1 below, determine using Mohr's circle: 1. Shearing and normal stresses on the plane whose normal are at 60° with the x-axis 2. The principle stresses and their orientation (angles) 3. The maximum shearing stresses, their associated stresses and their orientations (angles). 20 MPa 10 MPa Figure 1. 20 MPa 10 MPa

The curved bar shown in the figure has a rectangular cross section of 50x75 mm and an internal radius of 125 mm. For a force F = 1200 N, determine: a-) the normal stress at point A. b-) the normal stress in point B.

The stresses shown act at a point in a stressed body. The stress magnitudes are Sy = 100 MPa and Sy = 215 MPa, acting in the directions indicated in the figure. Using the equilibrium equation approach, determine the normal and shear stresses at this point on the inclined plane shown. Assume ß = 51°. ↑ Answer: Sn = MPa Snt = MPa