In (Figure 1), P₁ = 12 kN and P₂ = 6 kN. Figure 2 m G B 1 m 2 m 1 m 1 of 1
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- Suppose that P1 = 2 kN and P2= 5 kN (Figure 1) Find Fab,Fad,Fbc,Fcd,FbdCalculate the total deformation of steelbars shown in Figure. (d1=1A mm, d2=2A mm and E=210 GPa) A=5, B=3 , C= 8– The weight is suspended from structural A–36 steel alloy and 2014-T6 aluminum alloy wires, eachhaving the same initial length of 10 ft and cross-sectional area of 7×10–3 in2 (Figure Q1). If the weight is increasedgradually, determine which wire yields first? Explain which material model and yield criterion you will use? Justifyyour choices
- A very fine fabric 0.020 mm in diameter can support a 20 g object. How does the stress in the fabric compare with the ultimate strength in tension of copper1. A circular rod of diameter 20mm and 500mm long is subjected to atensile force 50kN. The modulus elasticity for steel may be taken as 200kN/??2. Find stress and strain due to applied load.Calculate the percentage elongation of a steel rod, when it is subjected to an axial pulling force of 50 KN. Whose diameter is 30 mm, its Original length is 2.9 m and the Final length is 9.7 m. Take E= 200 X 10^9 N/m^2.
- The bar shown in the following figure has a diameter of 40 mm and is subjected to a force P = 3500 N and a force F = 1500 N. It is made from a material which has a yield strength of 60 MPa. Determine the factor of safety at points A and B using the Von-Mises Theory. Select one: a. NA = 1.414, NB = 0.628 b. NA = 1.649, NB = 0.718 c. NA = 1.238 , NB = 0.558 d. NA = 1.977 , NB = 0.837A tensile force of 100 kN is applied on a 0.02-m diameter and 2-m long rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length increases to2.01 m. The true axialstrain is?An input shaft of a gearbox with motor power P = 7 kW and rotation number n = 1300 rpm. The diameter of an input shaft is d = 20 mm and its material is 16MnCr5. A force of F = 2800 N forces the shaft due to the operation of a gear wheel connected with a wedge on the input shaft. The distances of the gear from the bearings are given as L₁ = 40 mm and L2 = 60 mm. In the most dangerous section, you are required to check the strength according to the S = 3 safety factor. If the section is unsafe in terms of strength, what changes would you make in the design to make it safe? (The surface of the spindle is machined as fine chips, reliability poor Kg = 1.).
- A metallic rod of 500 mm length and 50 mm diameter, when subjected to a tensile force of 100 kN at the ends, experiences an increase in its length by 0.5 mm and a reduction in its diameter by 0.015 mm. Calculate the Poisson's ratio of the rod material .3. A cylindrical metal rod of 50mm diameter and 3m length is subjected to a tensile load of 150KN. To what length the cylinder should be centrally bored on one side to reduce weight by material removal, so that the total extension will increase by 20 percent under the same pull. The diameter of the hole being bored on one side is equal to 25mm. Take E= 200GPa.Consider a cylindrical specimen of a steel alloy (Figure 6.22) 8.5 mm (0.33 in.) in diameter and 80 mm (3.15 in.) long that is pulled in tension. Determine its elongation when a load of 65,250 N (14,500 lbf) is applied.