The two problems below are meant to simulate a problem you will have on the final...
The two problems below are meant to simulate a problem you will have on the final exam on Mohr's circle. For each of them, find a) the principal stresses drawn on a properly oriented element, b) the maximum in-plane shear stress, c) the maximum shear stress, d) the normal and shear stress on the cut plane as shown, including a sketch of their value and direction. 4 1 23. 6 2. 65 39.8 Answers: 1.-6.849 (plane 11.98 degrees cw from vert) and 12.849, max shear is also max inplane shear = 9.849, on cut plane sigma 12.465, shear 2.72 with arrow up and left. On 2, principals -48.66 (on plane 33.36 ccw from vert) and-12.73. Max in-plane shear 17.96, max shear 24.33, on cut plane sigma-48.43, shear is 2.198 with arrow up and left.