Find the allowable maximum value of F.
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- Two ropes are used to hoist a 610 Ib engine/transmission assembly as shown. The rope is anchored at C around the center part of the pin shown, causing the pin to experience a state of double shear. There is a frictionless pulley at A. The normal stress in the rope must not be allowed to exceed 12 ksi, and the shearing stress in the pin must not exceed 23 ksi. When the hoist is in the position given by: a = 41 in b = 13 ft c = 15 ft find the following: (a \& b) The forces carried in ropes AB and BC (c \& d) The necessary diameters of ropes AB and BC (e) The necessary diameter of the pin at C 2013Mchas (a) TAB = () Твс !! (c) dAB = (d) d BC %3! (e) d = %3D be sure to include units with your answers I3D2. If the allowable shear stress for each of the steel pins at A and B is tpe 6.5 ksi and the allowable normal stress for bar CB is Operm 10 ksi, determine the diameter of the pins at A and B and that of the square bar CB. Pin A is in double shear while Pin B is in single shear. Ignore points D and E. (^ } 2.5 ft -3 ft -5 ft 150 lb/ft Fx =The frame is loaded by a distributed load of intensity q as shown. Consider -25 in. only stress in the bars AC and BC. Each bar has a cross-section that is 0.75 in by 1.5 in. If the allowable normal stress is 5000 psi, determine the maximum allowable value for the distributed load intensity q. 40 in.
- 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.For the frame shown, a 4226-N load is acting on member ABD at D. If the allowable material shear stress for is 42 MPa, determine the required diameter (rounded off to the nearest 2.5 mm) of the pins at C and D. Pin C and pin D are subjected to double shear and single shear, respectively. If the thickness of member BC is 12 mm and that of member DE is 16 mm, determine the maximum bearing stress at C.An elastomeric bearing (G = 130 psi) is used to support a bridge girder as shown to provide flexibility during earthquakes. The beam must not displace more than 38 in. when a 4.7-kip lateral load is applied as shown. The maximum allowable shearing stress is 60 psi. Determine the smallest allowable dimension b. Determine the smallest required thisckness a.
- Two ropes are used to hoist a 530 lb engine/transmission assembly as shown. The rope is anchored at C around the center part of the pin shown, causing the pin to experience a state of double shear. There is a frictionless pulley at A. The normal stress in the rope must not be allowed to exceed 15 ksi, and the shearing stress in the pin must not exceed 21 ksi. When the hoist is in the position given by: a = 44 in b = 11 ft c = 19 ft find the following: (a \& b) The forces carried in ropes AB and BC (c l& d) The necessary diameters of ropes AB and BC (e) The necessary diameter of the pin at C 2013 Michael Swanbom (a) TAB = (b) TBC = (c) dAB = (d) dBc = (e) d =The simply supported joist is used in the construction of a floor for a building. In order to keep the floor low with respect to the sill beams C and D, the ends of the joists are notched as shown. If the allowable shear stress is tallow = 350 psi and the allowable bending stress is sallow = 1500 psi, determine the height h that will cause the beam to reach both allowable stresses at the same time. Also, what load P causes this to happen? Neglect the stressconcentration at the notch.Two forces, each of magnitude P, are applied to the wrench. The diameter of the steel shaft AB is 30mm. Determine the largest allowable value of P if the shear stress in the shaft is not to exceed 120MPa and it's angle of twist is limited to 7deg. Use G=83GPa for steel. -Draw and label the diagram correctly, No diagram in the solution will be marked wrong. -Shortcut solution will be marked wrong.
- pleaseThe T-bracket is formed by welding together two cylindrical rods AB and CD. If the allowable shear stress is 80 MPa, what is the smallest allowable diameter of rod AB? Neglect the stress caused by the transverse shear forceDetermine the required diameter (in inches) of rod AC if the allowable normal stress is 24.95 ksi and P = 12.61 kips.