o (ksi) 70 50 40 30 20 10 e (in./in.) 0 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.2 0 0.0025 0.0050.0075 0.01 0.01250.0150.0175 0.02 0.0255 0.025

Problem F2 stress (ksi) 130 120 110 100 90 80 70 60 50 40 30 20 10 0 0.000 0.025 0.050 0.075 0.100 0.125 0.150 0.175 strain (in/in) Above you will find the experimental stress-strain diagram of 1045 steel. Calculate the permanent set if a cylindrical specimen with a diameter of 2 in is loaded to the ultimate stress and then unloaded. Provide your answer in units of in/in with 3 significant figures after the decimal. The elastic modulus of 1045 steel is 29,000 ksi.

3. For a steel alloy, the stress-strain behaviour is shown below. Determine the modulus of elasticity, proportional limit, yield strength at 0.002 and maximum allowable load. 600 500E 400- 500 300 400- 300아 200 200- 100- 100E 0.000 0.002 0.004 0.006 Strain 0.00 0.04 0.08 0.12 0.16 0.20 Strain Stress (MPa) Stress (MPa)

The shear stress-strain diagram for an alloy is shown in the figure below (Figure 1). Take ✓ = 0.3 Figure 7 (ksi) и Ty 50 0.004 y (rad) < 1 of 2 Part A If a bolt having a diameter of 0.27 in. is made of this material and used in the lap joint, determine the modulus of elasticity E. (Figure 2) Express your answer to three significant figures and include appropriate units. E 3.25x10 ksi Submit ✓ Correct Part B Previous Answers Determine the force P required to cause the material to yield. Express your answer to three significant figures and include appropriate units. P= 5.73 X Incorrect Enter your Provide Feedback μA Submit Previou Answers Request Answer ksi ? Wron