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A steel spacing bar of length 05 m is assembled in a structure whilst the temperature is 20°C What will be its change in length if the temperature rises to 50°C What will be the stress in the bar

A steel spacing bar of length 0.5 m is assembled in a structure whilst the temperature is 20°C. What will be its change in length if the temperature rises to 50°C? What will be the stress in the bar if free expansion is prevented? Take E  200 GPa and   12  10 1 °C 1 . 7. A copper bar is rigidly fi xed at its ends at a temperature of 15°C. Determine the magnitude and nature of the stress induced in the material (a) if the temperature falls to 25 °C, (b) if the temperature rises to 95°C. Take E  96 GPa and   17  10 1 °C 1 . 8
 

Jun 24 2020 View more View Less

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