Q2 A steel bar of cross-sectional area 200 mm2 is loaded as shown in Fig. Find the change in length of the bar. Take E as 200 GPa.

1. Calculate the compressive stress in a 10.0 mm square rod loaded with 2250 N of force distributed normal to its end. Draw a free body diagram (geometry & forces) Identify stress plane Calculate stress and write it (with appropriate units) in the outlined box

The figure shows a rigid bar that is supported by a pin at A and two rods, one made of steel and the other of bronze. Neglecting the weight of the bar, compute the force (in N) in the steel rod caused by the 42758-Nload, using the following data: length of steel = 1.27 m, length of bronze = 2.06 m Area of steel = 522 mm, Area of bronze = 239 mm Modulus of elasticity of steel = 216 Gpa, Modulus of elasticity of bronze = 84 Gpa x= 0.69 m, y = 1.08 m, and z = 0.86 m. Round off the final answer to three decimal places. ... Bronze Steel Ey te z

Consider a steel cube with side length L and each of its faces normal to the orthogonal axes x, y, and z as shown below. If the cube is subjected to a constant tensile force T along the x-axis and the faces along the y- and z- axes are left free and unsupported, which of the following best describes what is expected to happen? Z Select one: O A. The cube will expand along the x-axis and compress along the y- and z-axes. B. The cube will expand along the x- and y-axes and will not deform along the z-axis. O C. The cube will expand along the x-axis and will not deform along the y- and z-axes. O D. The cube will compress along the x-axis and expand along the y- and z-axes.

Two pieces of wood are joined together. You need to determine the minimum height h needed to avoid shearing of the bottom piece of wood (blue rectangle). Both pieces are 0.75 in thick. The allowable shear stress of the wood is Tallow = 225 psi. joint/section that shear force is applied Variable A F N = 680 lb h? Values for the figure are given in the following table. Note the figure may not be to scale. Value 4 bottom piece lb 3 F a. Determine the magnitude of the Normal force on the top of the bottom piece of wood (blue rectangle), N. b. Determine the magnitude of the Shear force on the joint between the bottom piece of wood (blue rectangle) and vertical piece, V. c. Determine the minimum height, h. Round your final answers to 3 significant digits/figures.

strength of material MENG222 Please solve the problem step by step and make your line clear and don't forget to show me your step

The loaded frame shown in Fig. 1, is supported at A (fixed support) and B (roller support). C is an internal hinge. The cross section of the frame is shown in Fig.1(b). (a) Find reactions at supports A and B. (b) Find normal stress (ox-x) and normal strain (ɛx-x) at section X-X. (c) Find shear stress (Tx-x) and shear strain (yxx) at section X-X. (d) Elastic modulus and shear modulus of steel are, Es = 200 GPa and Gs = 70 GPa respectively. 180 kN 16 kN/m 25 150 25 Hinge 90 kN-m 3 25 2 m 4 m 250 8 m 25 all dimensions are in millimeter B Fig. 1 (b) 4 m 4 m 4 m 4 m 4 m Fig. 1 (a)