09. The rigid bar of negligible weight is supported as shown in the figure. If W 80 kN, compute the temperature change of the assembly that will cause a tensile stress of 50 MPa in the steel rod. Use the following data: A (mm²) a (f°C) E (GPa) Steel rod 300 11.7 x 10-6 200 Bronze rod 1400 18.9 x 10-6 83 SUMMARY OF ANSWERS AT °C Bronze 3 m Steel 1.5 m |1.0 m- 2.5 m -1.5 m-

09. The rigid bar of negligible weight is supported as shown in the figure. If W 80 kN, compute the temperature change of the assembly that will cause a tensile stress of 50 MPa in the steel rod. Use the following data: A (mm²) a (f°C) E (GPa) Steel rod 300 11.7 x 10-6 200 Bronze rod 1400 18.9 x 10-6 83 SUMMARY OF ANSWERS AT °C Bronze 3 m Steel 1.5 m |1.0 m- 2.5 m -1.5 m-

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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The rigid bar of negligible weight is supported as shown. The assembly is initially stress-free. Find the stress in each rod if the temperature rises by 20∘C after a load W = 110 kN is applied. Use the following properties in the table.
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Three aluminum rods support the rigid L-shaped bracket BCF as shown in the figure. Determine the stress in rod DE (express answer in MPa) if rod FG is cooled by 50°C. All three rods have the same cross-sectional area of 1000 mm^2. Use 73.1 GPa and 23 x 10^-6 /°C for the modulus of elasticity and the coefficient of thermal expansion of aluminum, respectively.
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