uch that the horizontal welds are b, and by long. Determine F if th ress is allow P₁ b₂ dh Tallow mm 50 mm 150 mm 50 mm 5 mm 140 MPa
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- The two steel members are joined together using a 30° scarf weld. Determine the average normal and average shear stress resisted in the plane of the weld.4. The compression load of 120 kN acts on the steel pipe of Table B-14. Determine the minimum Nominal dimeter pipe when the safety factor is 1.5 with a yield strength of 240MPa.The shear stresses t in a rectangular beam arc given by Eq. (5-43): in which Fis the shear force, / is the moment of inertia of the cross-sectional area, /lis the height of the beam, and i] is the distance from the neutral axis to the point where the shear stress is being determined (Fig. 5-32). By integrating over the cross-sectional area, show that the resultant of the shear stresses is equal to the shear force V.
- A vertical pole consisting of a circular tube of outer diameter 5 in. and inner diameter 4.5 in. is loaded by a linearly varying distributed force with maximum intensity of q0, Find the maximum shear stress in the pole.An axial load is applied to the rectangular cross section bar which is welded at the 57 degree angle shown. If the weld material has a failure normal stress of 160 mPa and a failure shear stress of 90 mPa, determine the required thickness if a factor of safety of 2.3 is required. Also determine the required diameter of the bolts(to the nearest mm) if the plate is face bolted to the supports. The bolt material has a failure shear stress of 175 mPa.The pipe assembly shown is subjected to a force F = 400 N. The pipe has an inner diameter of 20 mm and an outer diameter of 30 mm. It is made of steel with Sy = 250 MPa. Determine the safety factor at point A using the maximum shear stress theory. Select one: a. NA = 1.843 b. NA = 3.224 c. NA = 2.580 d. NA = 4.299
- The five bolt connection must support an applied load of P = 2000 lb. If the average shear stress in the bolts must be limited to 32 ksi, determine the minimum bolt diameter that may be used for this connection.The d = 17-mm-diameter solid rod passes through a D = 22-mm-diameter hole in the support plate. When a load P is applied to the rod, the rod head rests on the support plate. The support plate has a thickness of b = 12 mm. The rod head has a diameter of a = 34 mm, and the head has a thickness of t = 10 mm. The shear stress in the rod head cannot exceed 145 MPa, the punching shear stress in the support plate cannot exceed 95 MPa, and the bearing stress between the rod head and the support plate cannot exceed 135 MPa. Determine the maximum value of Pmax that can be supported by the structure.The member consists of the steel rod AB that is screwed into the end of the bronze rod Find the largest value of P that meets the following design criteria: (a) the overall length of the member is not to change by more than 3 mm; and (b) the stresses are not to exceed 140 MPa in steel and 120 MPa in bronze. The moduli of elasticity are 200 GPa for steel and 80 GPa for bronze.
- A pressure-vessel head is fabricated by welding the circular plate to the end of the vessel as shown. If the vessel sustains an internal pressure of 450 kPa, determine the average shear stress in the weld and the state of stress in thewall of the vessel.The stepped steel shaft carries the torque T. Determine the allowable magnitude of T if the working shear stress is 22 MPa and the and the rotation of the free end is limited to 5.2°. Use G = 83 GPA. Show the free body diagram.The flywheel causes a completely reverse bending on the shaft and the factor of safety is 2, determine: a. The ultimate tensile strength ( Su) of the material if the Yield strength (Sy) is 0.6 of Ultimate strength. b. The fatigue life of the shaft given the fatigue strength (S) is equal to 0.8Su and endurance Strength (Se) is equal to 0, 5Su, given the minimum stress is 0.3 of Maximum stress c. Draw the S - N diagram