-In the clevis shown in Fig. below, find the minimum bolt diameter and the minimum thickness of each yoke that will support a load P= 14 kN without exceeding a shearing stress of 120 MPa and a bearing stress of 200 MPa.
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- simple turnbuckle arrangement is constructed from a 40 mm outside diameter tube threaded internally at each end to take two rods of 25 mm outside diameter with threaded ends. What will be the nominal stresses set up in the tube and the rods, ignoring thread depth, when the turnbuckle carries an axial load of 30 kN? Assuming a sufficient strength of thread, what maximum load can be transmitted by the turnbuckle if the maximum stress 1s limited to 180 MN/m*?A shaft is to be fitted with a flanged coupling having 8 bolts on a circle of diameter 150 mm. The shaft may be subjected to either a direct tensile load of 400 kN or a twisting moment of 18 kN·m. If the maximum direct and shearing stresses permissible in the bolt material are 125 MPa and 55 MPa respectively. Find the minimum diameter of the bolt required. Assume that each bolt takes an equal share of the load or torque.A flexible cable and rigid boom system is used to lift a load of 65kN at the end of Boom at point C. Points A and B are considered pinned in nature. The allowable shearing stress at all bolts are 250MPa and the allowable bearing stress at all bolts are 300MPa. Note that the initial position of boom is horizontal and segment A and B are vertical. Determine the horizontal reaction at A. 3. Determine the vertical reaction at A.
- In the clevis shown in the figure, determine the minimum bolt diameter and minimum thickness of each yoke that will support a load P = 55kN without exceeding a shearing stress of 70 MPa and a bearing stress of 140 MPaA shaft is to be fitted with a flanged coupling having 8 bolts on a circle of diameter 150mm. the shaft may be subjected to either a direct tensile load of 400kN or a twisting moment of 18kN-m. if the maximum direct and shearing stress permissible in the bolt material are 125MPa and 55MPa respectively, find the minimum diameter of the bolt required.Note: Diameter of Bolt is 12 mm a. What is the maximum axial force P in kN if the allowable shear stress is 220 MPa? b. What is the maximum axial force P in kN if the allowable bearing stress is 50 MPa?
- A torque T0 is transmitted between two flangedshafts by means of ten 20-mm bolts (see figure andphoto). The diameter of the bolt circle is d = 250 mm.If the allowable shear stress in the bolts is 85 MPa,what is the maximum permissible torque? (Disregardfriction between the flanges.)The shaft of a heavy-duty tractor transmits 120 kW at 600 rpm, and at the same time supports a load just like a cantilever carrying 5.5 KN load located 610 mm from the support. If the allowable shear stress is 138 MPa, calculate the minimum diameter required. Neglect axial load. ANS. 52.23 mmA flexible cable and rigid boom system is used to lift a load of 65kN at the end of Boom at point C. Points A and B are considered pinned in nature. The allowable shearing stress at all bolts are 250MPa and the allowable bearing stress at all bolts are 300MPa. Note that the initial position of boom is horizontal and segment A and B are vertical. Draw the freebody diagram
- A steel bolt of 6 mm in diameter has a tensile load of 40 kN. Find the average tensile stress at the section M and the screwed section N, where the diameter at the root of the thread is 4 mm aA flange-and-bolt coupling between two shafts carries 12 bolts at a pitch diameter of 18 in. The shafts carry a torque of 50,000 ft-lb. Assuming that this torque is transmitted by shear across the 12 bolts and that these bolts are to be designed for a shear stress s3 = 3,000 lb/sq in., what is the bolt diameter?A 4-spline shaft and to slide when not under load has a diameter of 2.5 in. Find the compressive and shear stresses if shearing force is 2500 lbs. If hub length is 2 inches.