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The thrust bearing consists of a circular collar A fixed to the shaft B. Determine the maximum axial force P that can be applied to the shaft so that it does not cause the shear stress along a cylindrical surface a or b to exceed an allowable shear stress of τallow = 170 MPa.

3 viewssaamSolving Asked question 14/02/2025

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The 50-kg flowerpot is suspended from wires AB and BC which have diameters of 1.5 mm and 2 mm, respectively. If the wires have a normal failure stress of σfail = 350 MPa, determine the factor of safety of each wire

3 viewssaamSolving Asked question 14/02/2025

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The 50-kg flowerpot is suspended from wires AB and BC. If the wires have a normal failure stress of σfail = 350 MPa, determine the minimum diameter of each wire. Use a factor of safety of 2.5.

3 viewssaamSolving Asked question 14/02/2025

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The tension member is fastened together using two bolts, one on each side of the member as shown. Each bolt has a diameter of 0.3 in. Determine the maximum load P that can be applied to the member if the allowable shear stress for the bolts is τallow = 12 ksi and the allowable average normal stress is σallow = 20 ksi

3 viewssaamSolving Asked question 14/02/2025

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The hangers support the joists uniformly, so that it is assumed the four nails on each hanger carry an equal portion of the load. Determine the smallest diameter of the nails at A and at B if the allowable stress for the nails is τallow = 4 Ksi. The hangers only support vertical loads.

3 viewssaamSolving Asked question 14/02/2025

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The hangers support the joist uniformly, so that it is assumed the four nails on each hanger carry an equal portion of the load. If the joist is subjected to the loading shown, determine the average shear stress in each nail of the hanger at ends A and B. Each nail has a diameter of 0.25 in. The hangers only support vertical loads

3 viewssaamSolving Asked question 14/02/2025

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Member B is subjected to a compressive force of 600 lb. If A and B are both made of wood and are 1.5 in. thick, determine to the nearest 1/8in. the smallest dimension a of the support so that the average shear stress along the blue line does not exceed τallow = 50 psi. Neglect friction

3 viewssaamSolving Asked question 14/02/2025

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The steel swivel bushing in the elevator control of an airplane is held in place using a nut and washer as shown in Fig. (a). Failure of the washer A can cause the push rod to separate as shown in Fig. (b). If the maximum average normal stress for the washer is σmax = 60 Ksi and the maximum average shear stress is τmax = 21 ksi, determine the force F that must be applied to the bushing that will cause this to happen. The washer is 1/16in. thick.

3 viewssaamSolving Asked question 14/02/2025

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The truss is used to support the loading shown Determine the required cross-sectional area of member BC if the allowable normal stress is σallow = 24 ksi

3 viewssaamSolving Asked question 14/02/2025

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The joint is fastened together using two bolts. Determine the required diameter of the bolts if the failure shear stress for the bolts is τfail = 350 MPa. Use a factor of safety for shear of F.S. = 2.5

3 viewssaamSolving Asked question 14/02/2025

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The lever is attached to the shaft A using a key that has a width d and length of 25 mm. If the shaft is fixed and a vertical force of 200 N is applied perpendicular to the handle, determine the dimension d if the allowable shear stress for the key is τallow = 35 MPa

3 viewssaamSolving Asked question 14/02/2025

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Member B is subjected to a compressive force of 800 lb. If A and B are both made of wood and are 3/8 in thick, determine to the nearest 1/4 in. the smallest dimension h of the horizontal segment so that it does not fail in shear. The average shear stress for the segment is τallow = 300 psi

4 viewssaamSolving Edited question 14/02/2025

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The pedestal in the shape of a frustum of a cone is made of concrete having a specific weight of 150 lb/ft^3. Determine the average normal stress acting in the pedestal at its midheigh, z = 4ft. Hint: The volume of a cone of radius r and height h is V = 1/3πr^2 h.

3 viewssaamSolving Asked question 14/02/2025

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The pedestal in the shape of a frustum of a cone is made of concrete having a specific weight of 150 lb/ft^3. Determine the average normal stress acting in the pedestal at its base. Hint: The volume of a cone of radius r and height h is V = 1/3πr^2 h.

3 viewssaamSolving Asked question 14/02/2025

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Determine the largest load P that can be applied to the frame without causing either the average normal stress or the average shear stress at section a–a to exceed σ = 150 MPa and τ = 60 MPa, respectively. Member CB has a square cross section of 25 mm on each side

3 viewssaamSolving Asked question 14/02/2025

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Determine the maximum vertical force P that can be applied to the bell crank so that the average normal stress developed in the 10-mm diameter rod CD, and the average shear stress developed in the 6-mm diameter double sheared pin B not exceed 175 MPa and 75 MPa, respectively

3 viewssaamSolving Asked question 14/02/2025

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A vertical force of P = 1500 N is applied to the bell crank. Determine the average normal stress developed in the 10-mm diameter rod CD, and the average shear stress developed in the 6-mm diameter pin B that is subjected to double shear

3 viewssaamSolving Asked question 14/02/2025

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Solve for pin B. The pin is subjected to double shear and has a diameter of 0.2 in

3 viewssaamSolving Asked question 14/02/2025

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The crimping tool is used to crimp the end of the wire E. If a force of 20 lb is applied to the handles, determine the average shear stress in the pin at A. The pin is subjected to double shear and has a diameter of 0.2 in. Only a vertical force is exerted on the wire

3 viewssaamSolving Asked question 14/02/2025

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If the 60-mm diameter shaft is subjected to an axial force of 5 kN, determine the average shear stress developed in the shear plane where the collar A and shaft are connected

5 viewssaamSolving Asked question 14/02/2025

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