calculate the theoretical stress using the flexure or bending stress formula. The experimental se is shown in Figure 1: ● ● L Take a few minutes to solve the following pre-lab exercise problems before continuing with the background unit: LB 10 inches w 1.5 inches t = 0.25 inches W Problem 1: An experiment was set up according to Figure 1 with the following: L = 12 inches LB Q Search Figure 1: Simple cantilever beam with single longitudinal strain gage P = 4 lbs With the load applied, the longitudinal strain gage reading was recorded as 83 μs (microstrain). Determine the elastic modulus of the beam material. What material is it?

calculate the theoretical stress using the flexure or bending stress formula. The experimental se is shown in Figure 1: ● ● L Take a few minutes to solve the following pre-lab exercise problems before continuing with the background unit: LB 10 inches w 1.5 inches t = 0.25 inches W Problem 1: An experiment was set up according to Figure 1 with the following: L = 12 inches LB Q Search Figure 1: Simple cantilever beam with single longitudinal strain gage P = 4 lbs With the load applied, the longitudinal strain gage reading was recorded as 83 μs (microstrain). Determine the elastic modulus of the beam material. What material is it?

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.7.10P: Three round, copper alloy bars having the same length L but different shapes are shown, in the...

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A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The wire is made of a copper alloy having a stress-strain relationship that may be described mathematically by =18,0001+30000.03(=ksi) in which is nondimensional and has units of kips per square inch (ksi). (a) Construct a stress-strain diagram for the material. (bj Determine the elongation, of the wire due to the Forces P. (c) IF the forces are removed, what is the permanent set of the bar? (d) If the forces are applied again, what is the proportional limit?
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An aluminum bar has length L = 6 ft and diameter d = 1.375 in. The stress-strain curse for the aluminum is shown in Fig. 1.34. The initial straight, line part of the curve has a slope (modulus of elasticity) of 10.6 × 106 psi. The bar is loaded by tensile forces P = 44.6 k and then unloaded. (a) That is the permanent set of the bar? (b) If the bar is reloaded. what is the proportional limit? hint: Use the concepts illustrated in Figs. l.39b and 1.40.
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Repeat Problem 11.3-9. Use two C 150 × 12.2 steel shapes and assume that E = 205 GPa and L = 6 m.
Solve the preceding problem for the following data: diameter LO m, thickness 48 mm, pressure 22 MPa, modulus 210 GPa. and Poisson's ratio 0.29
Three round, copper alloy bars having the same length L but different shapes are shown, in the figure. The first bar has a diameter d over its entire length, the second has a diameter d over one-fifth of its length, and the third has a diameter d over one-fifteenth of its length. Elsewhere, the second and third bars have a diameter Id. All three bars are subjected to the same axial load P. Use the following numerical data: P = 1400 kN, L = 5m,d= 80 mm, E= 110 GPa. and v = 0.33. (a) Find the change in length of each bar. (b) Find the change in volume of each bar.
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