The rigid bar ABC is supported by a hinge at B and two vertical steel rods at A and C as shown in Figure. Initially, the bar is horizontal, and the rods are stress-free. The coefficient of thermal contraction, α is 11.7x10-6 /oC and modulus of elasticity, E = 200 GPa for steel. If the temperature of the steel rod at A is decreased by 35oC while the temperature of steel rod at C remains constant, determine : The stress in the steel rod at A (in MPa). The stress in the steel rod at C (in MPa). The deformation of the steel rod at C. Include negative sign if contraction (in mm, in 3 decimal places). The deformation of the steel rod at A. Include a negative sign if contraction (in mm, in 3 decimal places)
The rigid bar ABC is supported by a hinge at B and two vertical steel rods at A and C as shown in Figure. Initially, the bar is horizontal, and the rods are stress-free. The coefficient of thermal contraction, α is 11.7x10-6 /oC and modulus of elasticity, E = 200 GPa for steel. If the temperature of the steel rod at A is decreased by 35oC while the temperature of steel rod at C remains constant, determine :
The stress in the steel rod at A (in MPa).
The stress in the steel rod at C (in MPa).
The deformation of the steel rod at C. Include negative sign if contraction (in mm, in 3 decimal places).
The deformation of the steel rod at A. Include a negative sign if contraction (in mm, in 3 decimal places)
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