Solve Prob. 1.51, assuming that the structure has been redesigned to use
1.51 Link AC is made of a steel with a 65-ksi ultimate normal stress and has a
Fig. P1.51
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Chapter 1 Solutions
Mechanics of Materials, 7th Edition
- In the mechanism shown below, the distributed load W is 300 N/m and the angle 0 is 35", knowing that link AB has 1.5cm x 1.5cm cross-section. W |C 1.5 m 1-What is the average normal stress at section b-b?arrow_forward5. A bronze rod is rigidly attached between a aluminum rod and a steel rod as shown. Axial loads are applied at the positions indicated. Find the maximum allowable value of P that will not exceed a stress in steel of 140MPa, in aluminum of 90MPa or in bronze of 100MPa.arrow_forwardQUESTION 2 P C The 6.7-in diameter steel shaft AB is attached into the rigid wall at C and supported by a smooth bearing at A. The lever AC is welded to the end of the shaft. The maximum allowable stress for shaft AB is 363 psi. Consider that x = 3.54 ft and y = 6.75 ft. Determine the maximum allowable force P in lbs.arrow_forward
- A pin-connected truss is loaded and supported as shown. Each aluminum member has a cross-sectional area of A = 2.4 in.2. Assume a = 4.00 ft and b = 4.80 ft. If the normal stress in each member must not exceed 60 ksi, determine the maximum load Pmax that may be supported by the structure.arrow_forward! 4 Required information Two horizontal 5.5-kip forces (P) are applied to pin B of the assembly shown. A 0.8-in. diameter pin is used at each connection. Part 2 of 2 0.5 in. 1.8 in. P 0.5 in. 60° 1.8 in. Determine the maximum value of the normal average stress at the midpoint of link BC. The maximum value of the normal average stress at the midpoint of link BC is ksi.arrow_forward6. A 5/8 in. diameter steel rod AB is fitted to a round hole near end C of the wooden member CD. For the loading shown, determine (a) the maximum average normal stress in the wood, (bhe average bearing stress on the wood. 1 in. 1500 lb 750 lb 4 in. 750 lbarrow_forward
- 3. Required information Two horizontal 5.5-kip forces (P) are applied to pin B of the assembly shown. A 0.8-in. diameter pin is used at each connection. Pert 1 of 2 0.5 in. 1.8 in. 0.5 in. 45° 1.8 in. C Determine the maximum value of the average normal stress in link AB. The maximum value of the average normal stress in link AB is ksi.arrow_forward4. A load P is applied concentrically to the bar shown. If the allowable normal stress is 76 ksi, determine the maximum allowable load P. P 3.5 in. 0.5 in. dia. hole 0.4 in. rad. 2.5 in. Parrow_forwardLink AC is made of a steel with a 65-ksi ultimate normal stress and has a 14 × 1214 × 12 -in. uniform rectangular cross section. It is connected to a support at A and to member BCD at C by 3838 -in.-diameter pins, while member BCD is connected to its support at B by a 516516 -in.-diameter pin. All of the pins are made of a steel with a 25-ksi ultimate shearing stress and are in single shear. Knowing that a factor of safety of 3.05 is desired, determine the largest load P that can be applied at D. Note that link AC is not reinforced around the pin holes. The largest load P that can be applied at D is lb.arrow_forward
- Problem 1: Two solid cylindrical rods AB and BC are welded together at B and loaded as shown below. Knowing that P = 8 kips, find the average normal stress at the midsection of (a) rod AB, and (b) rod BC. Begin your solution on this page. 30 in. 25 in. B C P - 1.25 in. 12 kips 0.75 in.arrow_forward1. A bronze bar is fastened between a steel bar and an aluminum bar as shown. Axial loads are applied at the positions indicated. Find the largest value of P that will not exceed an overall deformation of 3.0 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and 80 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling. Use EsT=200GPA, EAL = 70 GPa, and EBr = 83 GPa. As = 480 mm? Ab=650 mm? Al= 320 mm? 2P 4P 3P 1m 2m 1.5marrow_forwardLink AB is to be made of a steel for which the ultimate normal stress is 450 MPa. Determine the cross-sectional area for AB for which the factor of safety will be 3.50. Assume that the link will be adequately reinforced around the pins at A and B.arrow_forward
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