A solid circular bar of diameter d = 50 mm (see figure) is twisted in a testing machine until the applied torque reaches the value T = 500 N - m . At this value of torque, a strain gage oriented at 45° to the axis of the bar gives a reading ɛ = 342 × 10–6.

A rectangular thin plate with Young's modulus 200 GPa and Poisson's ratio 0.30 is subjected to uniform stress distribution at its edges as shown. However it is stated that the dimension b of the plate does not change under the action of stress components , and om Considering microstrains (in 106), the change in the length of dimension a (in mm) is (rounded off to three decimal places) b- 100 mm O= 200 MPa Oyy = 200 mm

A punch for making holes in steel plates is shown in Figure 3. Assume that a punchhaving diameter d = 20 mm is used to punch a hole of 8 mm plate. If force, V = 110 kNis required to create the hole, determine the shear stress in the plate.

Refer to the figure 1. Which of the following most nearly gives the value of the major principal stress? Answer: 216 kPA 2. Which of the following most nearly gives the value of the normal stress on the plane AB? Answer: 174.64 kPa 3. Which of the following gives the value of the shear stress on the plane AB? Answer: 54.64 kPA