Question 3 A solid 30x30mm square beam with a length L=1.2 m is supported by a...
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Question 3
A solid 30x30mm square beam with a length L=1.2 m is supported by a pin and roller. There is a 0.4mm gap between the beam and an adjacent rigid wall when the temperature is 10°C.
b) if the temperature is raised to 45°C and with the wall now in place as shown in the figure above, calculate the resulting axial force in the beam in kN? Indicate a compressive force with a negative value. Do NOT include any units.
Assume Est = 200GPa, αst = 12x10-6/ºC.
When calculating this value you MUST keep all the decimal places in your calculator for the answer to the previous question.
Give this answer to 2 decimal place.
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