PSAD Refresher 59: Stresses due to Thermal Deformation

Check out our Review Center: https://www.facebook.com/share/1AC24W... SITUATION: The rigid bar ABC is supported by a pin at B and two vertical steel rods. Initially the bar is horizontal, and the rods are stress-free. The temperature of the rod at A is decreased by 40°C. Neglect the weight of bar ABC. Use α = 11.7 10-6/°C and E = 200 GPa for steel. 1. Calculate the stress in the rod at A (MPa). A. 12.96 C. 10.80 B. 25.92 D. 86.40 2. Calculate the stress in the rod at C (MPa). A. 25.92 C. 86.40 B. 12.96 D. 10.80 3. Calculate the vertical displacement of C, in mm. A. 0.033 C. 0.065 B. 0.812 D. 0.109 Thanks for watching! Comment for questions and suggestions for future lecture in this series. Subscribe and hit the bell button to be notified for future posts. #civilengineering #boardexam #engineering #structuralanalysis #structuralengineering #CivilEngineeringLicensureExamination #PRC #PSAD #theoryofstructures #cele #strengthofmaterials #mechanicsofmaterials #staticsofrigidbodies #steeldesign #compressionmember #trusses #friction #refresher #PSADRefresher #SHET