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 (mm?) a (F C) E (GPa) Steel rod 300 11.7 x 10-6 200 Bronze rod 1400 18.9 x 10-6 83

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 (mm?) a (F C) E (GPa) Steel rod 300 11.7 x 10-6 200 Bronze rod 1400 18.9 x 10-6 83

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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Concept explainers

Properties of materials

A property of a material describes its characteristics and distinguishes it from the others. The material properties are described it in terms of its hardness, color, appearances, and so on. The material properties generally depend on the type of material, or whether it is a metal or an alloy. There are different kinds of material properties such as mechanical properties, thermal properties, physical properties, and chemical properties. Chemical properties describe the material in terms of a chemical change. The mechanical properties come into existence when the material is acted upon by an external load. Thermal properties are associated with the temperature of the material and specific heat.

Question

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 × 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 –

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