(a) For the input force, P, determine the force exerted on the bolt. (b) What is the mechanical advantage of this machine? (c) Suggest two ways that the mechanical advantage of this system could be increased.
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- Part A If the required clamping force at the board A is to be 85 N, determine the torque M that must be applied to the handle of the "C" clamp to tighten it down. The single square-threaded screw has a mean radius of 10 mm, a lead of 3 mm, and the coefficient of static friction is u, = 0.35. Express your answer to three significant figures and include the appropriate units. M = 1.1142 Nm O The unit you entered is not recognized. Review a list of acceptable units. No credit lost. Try again. Submit Previous Answers Request Answer Figure 1 of 1 Provide Feedback Next > M O PearsonThe bolts used for connecting the angle shown in the figure are 22mm in diameter. The thickness of the angle is 8mm. Use F, = 145 MPa F = 230 MPa Determine the safe load P. 80 60 120 60 68 115 68 120 120 109 -8-2. The connections shown in the figure below consist of 10 A490 bolts and is attached to the column flange. The bolts are subject to shear and tension in a bearing-type connection with threads excluded in the shear plane. Assume the strength of column flange and the plates does not govern the strength. a. Investigate the adequacy of the bolts if P=250KN. b. Determine the safe value of P. 200 mm W shape 75 mm 75 mm 375 mm 75 mm 75 mm 30mm 0 bolt 250 mm
- A compound bar consisting of bronze, aluminum, and steel segments is loaded axially as shown in the figure. Determine the maximum allowable value of P if the change in length of the bar is limited to 2 mm and the working stresses prescribed in the table are not to be exceeded. E=200 GPa A=D300mm? L=3m 2m 2 m 3m 1.5m Match each tem to a choiceDetermine the moment of each force about the bolt located at A (Figure 1). Take FB = 50 lb. Fc = 50 lb. Figure 1 of 1 0.75 Part A Determine the direction of the moment produced by F clockwise counterclockwise Request Answer Part B Determine the magnitude of the moment produced by Fg. Express your answer with the appropriate units. ? MB - Value Units Submit Request Answer SubmitQ2\ A compound bar consisting of bronze, aluminum, and steel segments is loaded axially as shown in the figure. Determine the maximum allowable value of P if the change in length of the bar is limited to 2 mm and the working stresses prescribed in the table are not to be exceeded. A (mm') E (GPa) Ow (MPa) =TTT Aluminum Bronze 450 83 120 3P Bronze Steel 2P P AP- Aluminum 600 70 80 Steel -0.6 m→l- - 1.0 m- H-08 m- 300 200 140
- Situation 8: For the connection shown in the figure. Pu = 80 KN, x1 = 200, x2 = 100, y1 = 50, y2 = y3 = y4 = 100 y1 y2 y3 y4 O 80 MPa O 71 MPa O 74 MPa oooo O 86 MPa O 1. Which of the following nearly gives the shearing stress of the most stress bolt? Use 20 mm diameter bolt. x1 O O O x2Q3/ For the plate shown in figure below find * (a) Z A YA 7 9 8Two plates are connected using three 20-mm-diameter bolts as shown in the figure. If the axial load P is 50 kN determine the shear stress in each bolt. 130 mm 25 mm Your answer: O 53 MPa. O 159 MPa O26.5 MPa O 79.5 MPa O 106 MPa: ooo 25 mm P
- A bracket connection shown in figure, consists of a joist cutting welded to the flange of a column by shop fillet welds 8 mm on flanges and 6 mm on the web. Determine the safe service load 'W', the bracket can support at a distance of 200 mm from the face of the column if the steel grade is Fe 410. 200 200 8V 150 200 W 8 V 150 N 150 200 250 Partial factor of safety on shop weld = 1.25 Yield strength of steel = 250 MPa. 250 AA load of P = 2800 N acts on the machine part shown. The angle between the line of action of Pand the vertical y axis has a value of - 75°. The overall dimensions of the machine part are a= 125 mm, b - 55 mm, and c-75 mm. K B.H.W4: a- A copper bar is 900 mm long and circular in section. It consists of 200 mm long bar of 40 mm diameter, 500 mm long bar of 15 mm diameter and 200 mm long bar of 30 mm diameter. If the bar is subjected to a tensile load of 60 kN, find the total extension of the bar. Take E for the bar material as 100 GPa. b- A stepped bar ABCD consists of three parts AB, BC and CD such that AB is 300 mm long and 20 mm diameter, BC is 400 mm long and 30 mm diameter and CD is 200 mm long and 40 mm diameter. It was observed that the stepped bar undergoes a deformation of 0.42 mm, when it was subjected to a compressive load P. Find the value of P, if E = 200 GPa.