A 4-m-long steel plate with a rectangular cross section (10 mm * 50 mm) is resting on a frictionless surface under the sun. The plate temperature is meas-ured to be at 40°C. The plate is then moved into a cold room and is left to rest on a frictionless surface. After several hours, the plate temperature is meas-ured to be at 5°C. The steel has a modulus of elasticity equal to 200 GPa and a coefficient of thermal expansion equal to 1.1 * 10-5m/m/°C. a. What is the length of shrinkage?b. What tension load is needed to return the length to the original value of 4meters?c. What is the longitudinal strain under this load?
A 4-m-long steel plate with a rectangular cross section (10 mm * 50 mm) is resting on a frictionless surface under the sun. The plate temperature is meas-ured to be at 40°C. The plate is then moved into a cold room and is left to rest on a frictionless surface. After several hours, the plate temperature is meas-ured to be at 5°C. The steel has a modulus of elasticity equal to 200 GPa and a coefficient of thermal expansion equal to 1.1 * 10-5m/m/°C. a. What is the length of shrinkage?b. What tension load is needed to return the length to the original value of 4meters?c. What is the longitudinal strain under this load?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 4-m-long steel plate with a rectangular cross section (10 mm * 50 mm) is
resting on a frictionless surface under the sun. The plate temperature is meas-
ured to be at 40°C. The plate is then moved into a cold room and is left to rest
on a frictionless surface. After several hours, the plate temperature is meas-
ured to be at 5°C. The steel has a modulus of elasticity equal to 200 GPa and a
coefficient of thermal expansion equal to 1.1 * 10-5
m/m/°C.
a. What is the length of shrinkage?
b. What tension load is needed to return the length to the original value of 4
meters?
c. What is the longitudinal strain under this load?
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