Ql:A bronze bar is fastened between a steel bar and an aluminum bar as shown in Fig. Axial loads are applied at the positions indicated. Find the largest value of P that will not exceced an overall deformation of 0.5 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and 100 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling. Use E = 200 GPa, E = 70 GPa, and E = 83 GPa. st al br Bronae A-650 m Steel Aluminum A= 480 mm A 320 mm 4P 2P 1.0 m 20m 1.5m

Ql:A bronze bar is fastened between a steel bar and an aluminum bar as shown in Fig. Axial loads are applied at the positions indicated. Find the largest value of P that will not exceced an overall deformation of 0.5 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and 100 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling. Use E = 200 GPa, E = 70 GPa, and E = 83 GPa. st al br Bronae A-650 m Steel Aluminum A= 480 mm A 320 mm 4P 2P 1.0 m 20m 1.5m

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.7.2P: A round bar of 10 mm diameter is made of aluminum alloy 7075-T6 (see figure). When the bar is...

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An aluminum bar has length L = 6 ft and diameter d = 1.375 in. The stress-strain curse for the aluminum is shown in Fig. 1.34. The initial straight, line part of the curve has a slope (modulus of elasticity) of 10.6 × 106 psi. The bar is loaded by tensile forces P = 44.6 k and then unloaded. (a) That is the permanent set of the bar? (b) If the bar is reloaded. what is the proportional limit? hint: Use the concepts illustrated in Figs. l.39b and 1.40.
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