Consider the truss shown in (Figure 1). Suppose that F=600 lb. Figure #WE with www B M www.l lawww. C D 4 ft 4 ft-4ft-4ft F1Ww. T 3 ft 1 of 1 ▼ Y Y Part A Determine the for Express your an View Available Fac Submit Part B Determine the for Express your an View Available. FHG = Submit V Part C V Determine the forc Express your ans View Available

Consider the truss shown in (Figure 1). Suppose that F=600 lb. Figure #WE with www B M www.l lawww. C D 4 ft 4 ft-4ft-4ft F1Ww. T 3 ft 1 of 1 ▼ Y Y Part A Determine the for Express your an View Available Fac Submit Part B Determine the for Express your an View Available. FHG = Submit V Part C V Determine the forc Express your ans View Available

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter5: Stresses In Beams (basic Topics)

Section: Chapter Questions

Problem 5.5.29P: A steel post (E=30×106) having thickness t = 1/8 in. and height L = 72 in. support a stop sign (see...

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Continuous cable A DB runs over a small friction less pulley al D to support beam OABC, which is part of an entrance canopy for a building (see figure}. The canopy segment has a weight W = 1700 lb that acts as a concentrated load in the middle of segment AB. (a) What is the maximum permissible value of load P at C if the allowable force in the cable is 4200 lb? (b) If P = 2300 lb, what is the required diameter of pins A, B, and D? Assume that the pins are in double shear and the allowable shear stress in the pins is 10 ksi.
A steel riser pipe hangs from a drill rig located offshore in deep water (see figure). (a) What is the greatest length (meters) it can have without breaking if the pipe is suspended in the air and the ultimate strength (or breaking strength) is 550 MPa? (b) If the same riser pipe hangs from a drill rig at sea, what is the greatest length? (Obtain the weight densities of steel and sea water from Table M, Appendix I. Neglect the effect of buoyant foam casings on the pipe.)
A steel cable with a nominal diameter of 25 mm (see Table 2-1) is used in a construction yard to lift a bridge section weighing 38 kN. as shown in the figure. The cable has an effective modulus of elasticity E = 140 GPa. (a) If the cable is 14 m long, how much will it stretch when the load is picked up? (b) If the cable is rated for a maximum load of 70 kN, that is the factor of safety with respect to failure of the cable?
A steel post (E=30×106) having thickness t = 1/8 in. and height L = 72 in. support a stop sign (see figure), where s = 12.5 in. The height of the post L is measured from the base to the centroid of the sign. The stop sign is subjected to wind pressure p = 20 lb/ft2 normal to its surface. Assume that the post is fixed at its base. What is the resultant load on the sign? (Sec Appendix E, Case 25, for properties of an octagon, n =8.) What is the maximum bending stress in the post? Repeat part (b) if the circular cut-outs arc eliminated over the height of the post.
A cylindrical brick chimney of height H weighs w = 825 lb/ft of height (see figure). The inner and outer diameters are d1= 3 ft and d2= 4 ft, respectively. The wind pressure against the side of the chimney is p = 10 lb/ft2 of projected area. Determine the maximum height H if there is to be no tension in the brickwork.
For the truss given below, it is desired to determine the normal efforts that act on the members, so that, thus, possible constraints for its design are possible. Consider that at point A there is a second gender support; and at point D, a first-class support. As this is asked: what is the effort acting on bar AB? Is it guidance or assessment?Source: Hibbeler (2004, p. 588). HIBBELER, R. C. Resistance of Materials. 5. ed. Rio de Janeiro: Technical and Scientific Books Publisher, 2004. Question 1 options: a) A compression force of 100 kN acts on bar AB. B) A tensile effort of 100 kN acts on bar AB. c) A compressive force of 141.42 kN acts on bar AB. d) A compression force of 200 kN acts on bar AB. e) A tensile effort of 141.42 kN acts on bar AB.
Table 1 : F= 585 lb, P = 215 lb, X= 5 ft, Angle of the inclined bars of truss = 30°
The following figure shows the critical position of a crane that supports 2.5 Tons of load by means of a chain. You are delegated the responsibility of building a crane with similar geometric characteristics and load capacity. The diagram of free body of the crane arm can be redrawn as follows. (check the attached image "fbd") Assuming that the crane arm will be made of steel with yield stress sigmaY =220 MPa and that you must consider a safety factor of F.S.=1.5, propose a profile from the following catalog for the manufacture of the crane arm. Ignore the effects of shear forces on this element. On the other hand, it is very important that you consider the effects of axial loads. Commercial profiles for arm construction. (Check image "profiles")
using the method of sections , analyse the truss shown in figure 8 below reguarding forces in menbers ED , DF AND FC .
Question 1) in FIG loading condition is given beam F force F = 65 kN , first distributed load W 1 = 41 kN / m , w 2 distributed load w 2 = 51 kN / m , θ angle θ = 48 ° and L length of L = 5 m . According to this; Question 1-A) B at the point y direction ( B y ) Determine the support reactions. (Enter yourresultwithout writing kN units.) Question 1-B) to the point in y direction ( A y ) Determine the support reactions. ( Enter yourresult without writing kN units.) Question 1-C) to the point in x direction ( A x ) Determine the support reactions. ( Enter yourresult without writing kN units.)
Consider the truss shown in (Figure 1). Suppose that P1= 45 kN and P2= 80kN. Determine the force in member and state if the member is in tension or compression. AB AE BC BD BE CDDE Express your answer to three significant figures and include the appropriate units. Use negative value in the case of compression and positive value in the case of tension.
Find the residual forces acting in a truss with members AC=1000N (T), EG=520N (T), and FH=1200N (C) as indicated in Figure 2. Determine the loads P1, P2, and P3 as well.