As per IS 800, the efficiency of a riveted joint having the minimum pitch is: 1. 60% 2. 70% 3. 40% 4. 50%
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- What is the value of reduction factor of the beam, if the stress in the steel is 400 MPa, and the Modulus of Elasticity of the Steel is 200,000 MPa. O 0.671 0.692 O 0.660 O 0.650 None of the Choices O 0.681P = 8kN. Using N = 3, determine the allowable stress for A501 grade steel. Calculate the dimensions (to 1 decimal place) of a square rod. L = 5.9m. Calculate the deformation (6) and the strain (€).A composite bar is rigidly attached to the wall at A as shown in the figure. Axial loads are applied at the positions indicated. 3 m 2.5 m C 1200 kN 900 kN 80mmØ 100mmØ E = 83 GPa Bronze E = 200 GPa Steel Which of the following most nearly gives the deformation of C? a. -0.7855 mm О Ъ. +0.8575 mm c. +0.7855 mm o d. - о.8575 mm
- Given : Steel: A = 600mm2 ; E = 200 GPa Bronze : A = 900mm2 ; E = 83 GPa Show the complete solution and FBDOne of the following values is a possible for possion ratio for steel ? a. Zero b. one c. 0.3 d 0.9} 8) A tensile load of 3000 N is applied to a steel bar of cross-sectional area 500 mm?. If a tensile load was applied to an aluminum bar to achieve the same lateral (transvers) strain with the former (steel bar), what would be the load? Note: Original dimensions of the two bars are the same (Est = 2.1 x 105 MPa, Eat = 0.703 × 105 MPa, vg = 0.3, vat = 0.33) E = º , v = - Saterat Eaxial Fatuminum™ 3000 N A-500 mm² A=500 mm² Fatuminum=? 3000 N Steel Aluminum
- SITUATION. A steel plate ABCD of thickness t = 5mm is subjected to uniform stresses: = 100 MPa 0₂ = -60 MPa. Ox E =200GPa, v= 1/3 a = 160mm and b = 200 mm Calculate the change in thickness (mm). -0.0023 mm 0.0023 mm O O 0.0045 mm - 0.0045 mm Ł B AL C D X5. A bronze bar is fastened between a steel bar and an aluminum bar as shown in Figure 5. Axial loads are applied at the positions indicated. Find the largest value of P that will not exceed an overall deformation of 3.0 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and 80 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. Steel A = 480 mm² 1.0 m Bronze A = 650 mm² 3P 4P 2.0 m FIGURE 5 Aluminum A = 320 mm² 1.5 m 2PA W18×86 beam is riveted tona W24×117 grinder by q connection as shown in the figure. The diameter of the rivets is 7/8 in, and angles are each 4×31/2×3/8 in. For each rivets assume that the allowable stresses are T= 15 ksi and stress in b is 32 ksi. What is the bearing strength of the grinder? What is the bearing strengtht of the beam? What is the shear strength of the rivets? What is the maximum load that the connection can carry?
- A gap of 0.02 in. exists between the composite rod and the wall when the temperature is 75°F. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. 0.02 in. - 14 in. 18 in. Aluminum A = 2.8 in? E = 10.6 X 106 psi Bronze A = 2.4 in? E = 15 x 106 psi a = 12 x 10-6/°F a = 12.9 x 10 /°F Determine the temperature at which the normal stress in the aluminum rod will be equal to -7 ksi. The temperature of the aluminum rod is |°F.The modulus of elasticity of mild steel is equal to .. .? .... .. a. 2 x 10ʻN/m? a. 2 x 10'N/m 2 b. 2 x 10° N/m 4 c. 2 x 10 N/mm 5 d. 2 x 10 N/mm CheckThe two wooden boards shown in the figure are connected by a 0.5 in. diameter bolt. Washers are installed under the head of the bolt and under the nut. The washer dimensions are D 2 in. and d 5/8 in. The nut is tightened to cause a tensile stress of 9,000 psi in the bolt. Determine the bearing stress MPa between the washer and the wood