A cast iron beam is of I section as shown in figure. The beam is simply supports on a span of 5 meters. If the tensile stress is not to exceed 20 N/mm², find the safe uniformly load which the beam can carry. Find also the maximum compressive stress. 160mm 200mm 20mm 40mm 80mm 20 mm
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- For the state of stress shown, determine (a) the principal stresses, (b) the maximum in-shear stress. Sketch such stresses in a two- element format. 60 MPa 90 MPa Lx 30 MPaAn aluminum rod is rigidly attached between a steel rod and a bronze as shown. Axial loads are applied at the positions indicated. Find the stress of each rod in MPa. Steel Aluminum Bronze A- 500mm? A = 400mm? A - 200mm 40KN 10KN 20KN 2.5m 2.0m 1.5m2. The bronze bar 3 m long with a cross-sectional area of 350mm2 is placed between two rigid walls. At a temperature of -20 oC, there is a gap of 2.2 mm. Find the temperature atwhich the compressive stress in the bar will be 30 MPa ifthe bar will experience:a. No tensile.b. With an tensile of 5,000 N.Use α = 18.0 x 10-6 /oC and E = 80 GPa.
- An aluminum rod is rigidly attached between a steel rod and a bronze as shown. Axial loads are applied at the positions indicated. Find the stress of each rod in MPa. Steel Aluminum Bronze A- 500mm A = 400mm? A- 200mm 40KN 10KN 20KN 1.5m 2.5m 2.0m Determine the change in length of steel rod having a length of 800mm and a diameter of 6.5mm. The rod is subjected to a force P equal to 110KN. Young's Modulus is 200GPA Compute normal strain of the rod3) An bronze rod is rigidly attached between a aluminum rod and a steel rod as shown. Axial loads are applied at the positions indicated. Find the maximum allowable value of P that will not exceed a stress in steel of 140MPA, in aluminum of 90MPA or in bronze of 100MPа. Aluminum A = 500mm? Bronze A = 200mm? Steel A = 150mm2 2P ЗР L st = 1.2m L br = 2m Lal = 3.5mThe shown plate is 60 mm thick and it is made of Magnesium Am1004-T61. The plate is fitted between the rigid frictionless supports as shown and at T, = 20°C it is stress free. Find the stresses in the x and y directions when the temperature increases to T, = 58°C. %3D 150 mm 150 mm Select one: O x: 0 MPa, y: 42.864 MPa Ox: 22.1 MPa, y: 44.2 MPa Ox: 0 MPa, y: 44.2 MPa Ox: 0 MPa, y: 17.8 MPa O x: 13.2 MPa, y: 44.2 MPa Ox: 0 MPa, y: 67.4 MPa 3:10 PM O G 4) ENG 1/31/2021
- SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and attached to two vertical rods. Assume that the rods were initially stress-free. Allowable stress in steel is 120 MPa and in bronze is 60 MPa. For this problem, a = 1.8m; b = 1.3m; c = 1.7m. b C NANTSELEINE Steel: A = 900 mm² E = 200 GPa L=1.5m Bronze: A=1200 mm² E=83 GPa L=2.0m What is the ratio of the elongation of steel to bronze? O 0.367 O 0.433 O 0.467 0.333A cast iron beam is of I– section as shown in Figure (3). The beam is simply supported on a span of 5 m. If the tensile stress is not to exceed 20 N/mm2, find the safe uniformly load which the beam can carry. Find also the maximum compressive stress. -80 mm- 20 mm 169.34 mm 200 mm 20 mm N 90.66 mm 40 mm 160 mm Figure (3)Determine the maximum compressive and tensile bending stresses of the beam shown, cross-section of the beam is given below
- Determine the maximum tensile stress in the beam shown.SITUATION. As shown in the figure below, a rigid bar with negligible mass is pinned at O and attached to two vertical rods. Assume that the rods were initially stress-free. Allowable stress in steel is 120 MPa and in bronze is 60 MPa. For this problem, a = 1.8m; b = 1.3m; c = 1.7m. b C P Steel: A=900 mm² E = 200 GPa L=1.5m Bronze: A 1200 mm E=83 GPa L=2.0m What is the value of P without exceeding the allowable stress of bronze, in kN? 174 145 161 124Problem 1 A bar obtained by bonding together pieces of aluminum (Ea section shown below. Considering that the allowable stress (both in compression and tension) of aluminum and brass are 120 MPa and 180 MPa, respectively, determine the largest moment M that can be applied about the 70 GPa) and brass (Eb 105 GPa) has the cross horizontal axis. 8 mm 8 mm 32 mm- 8 mm 32 mm 8 mm Brass Aluminum