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- The bell-crank mechanism is in equilibrium for an applied load of F₁ = 15 kN applied at A. Assume a = 270mm, b = 170mm, c 70mm, and 9 50°. Pin B is in a double-shear connection and has a diameter of 20 mm. The bell crank has a thickness of 34 mm. Determine the bearing stress in the bell crank at B. Answer in MPa rounded-off to 2 decimal places. F₁ Bell crank Support bracket a B b

The two aluminum rods support the vertical force of P = 20 kN. Determine their required diameters if the allowable tensile stress for the aluminum is o allow = 150Mpa. В 45° A P

The bell-crank mechanism is in equilibrium for an applied load of F₁ = 12 kN applied at A. Assume a = 250mm, b = 170mm, c = 80mm, and 0 = 50°. Pin B is in a double-shear connection and has a diameter of 20 mm. The bell crank has a thickness of 25 mm. Determine (a) the shear stress in pin B. (b) the bearing stress in the bell crank at B. Support bracket A Answers: Tpin B = i Ob= i Bell crank a B b MPa MPa

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The bar is connected to the support using a pin having a diameter of d =lin. If the allowable tensile stress for the bar is (o,)low = 20ksi , and the allowable bearing stress between the pin and the bar is (0,)allow = 30ksi , determine the dimension w and t so that the gross area of the cross section is wt = 2in² and the load P is a maximum. What is this maximum load? Assume the hole in the bar has the same diameter as the pin. (Hint: Use the prjjected area whenj calculating the bearing stress.) t d w/2 w/2

The solid cylinder having a radius r is placed in a sealed container and subjected to a pressure p. Determine the stress components acting at point A located on the center line of the cylinder. Draw Mohr's circles for the element at this point. A

1-103. The bar is supported by the pin. If the allowable tensile stress for the bar is (o)allow = 150 MPa, and the allowable shear stress for the pin is Tallow = 85 MPa, determine the diameter of the pin for which the load P will be a maximum. What is this maximum load? Assume the hole in the bar has the same diameter d as the pin. Take 1 = 6 mm and w = 50 mm.

The bell-crank mechanism is in equilibrium for an applied load of F₁ = 20 kN applied at A. Assume a = 270mm, b = 170mm, c = 70mm, and 9 = 50°. Pin B is in a double-shear connection and has a diameter of 24 mm. The bell crank has a thickness of 36 mm. Determine the bearing stress in the bell crank at B. Answer in MPa rounded-off to 2 decimal places. F₁ Bell crank Support bracket Add your answer B b 4

The 304 stainless steel post A has a diameter of d [d] mm F KN and is surrounded by a red brass C83400 tube B. Both rest on the rigid surface. If a force of F kN is applied to the rigid cap, determine the average nomal stress developed LImm To mm in the post and the tube. G,= 193 GPa, G= 101 GPa. mm = 200 mm F: 25N t =12 d=50 ro=75