Question 6 Before the 400-kN load is applied, the rigid platform rests on two steel bars, each of cross-sectional area 1400 mm?, as shown in the figure. The cross-sectional area of the aluminum bar is 2800 mm?. Compute the stress in the aluminum bar after the 400-kN load is applied. Use E = 200 GPa for steel and E = 70 GPa for aluminum. Neglect the weight of the platform 400 kN 0.1 mm Steel Aluminum Steel 250 mm -

Question 6 Before the 400-kN load is applied, the rigid platform rests on two steel bars, each of cross-sectional area 1400 mm?, as shown in the figure. The cross-sectional area of the aluminum bar is 2800 mm?. Compute the stress in the aluminum bar after the 400-kN load is applied. Use E = 200 GPa for steel and E = 70 GPa for aluminum. Neglect the weight of the platform 400 kN 0.1 mm Steel Aluminum Steel 250 mm -

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A rigid block AB of weight 800 N hangs on an equally spaced vertical wires, two of steel and one aluminum. The wires also support a load P acting at the midpoint of the block. The diameter of the steel wire is 2 mm and that of aluminum wire is 4 mm. what load P can be supported if the allowable stress in the steel wires is 220 MPa and in the aluminum wire is 80 MPa. Use E = 200 GPa for steel and 70 GPa for aluminum. ////// St Al St A W = 800 N
Question 6 Before the 400-kN load is applied, the rigid platform rests on two steel bars, each of cross-sectional area 1400 mm?, as shown in the figure. The cross-sectional area of the aluminum bar is 2800 mm?. Compute the stress in the aluminum bar after the 400-kN load is applied. Use E = 200 GPa for steel and E = 70 GPa for aluminum. Neglect the weight of the platform | 400 kN 0.1 mm Steel Aluminum Steel 250 mm
Final answer must be 2 decimal places. Don't round off initial values ty
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