The rigid bar ABC in the figure is pinned at B and attached to the two vertical rods. Initially, the bar is horizontal and the vertical rods are stress-free. Determine the stress in the aluminum rod if the temperature of the steel rod is decreased by 40°C. Neglect the weight of bar ABC.
![The rigid bar ABC in the figure is pinned at B 1 The rigid bar ABC in the figure is pinned at B and attached to the two vertical rods. Initially, the bar is horizontal and the vertical rods are stress-free. Determine the stress in the aluminum rod if the temperature of the steel rod is decreased by 40°C. Neglect the weight of bar ABC.](https://theskyscorner.com/wp-content/uploads/2023/03/image-235.png)
![The rigid bar ABC in the figure is pinned at B 2 The rigid bar ABC in the figure is pinned at B and attached to the two vertical rods. Initially, the bar is horizontal and the vertical rods are stress-free. Determine the stress in the aluminum rod if the temperature of the steel rod is decreased by 40°C. Neglect the weight of bar ABC.](https://theskyscorner.com/wp-content/uploads/2023/03/image-236.png)
![The rigid bar ABC in the figure is pinned at B 3 The rigid bar ABC in the figure is pinned at B and attached to the two vertical rods. Initially, the bar is horizontal and the vertical rods are stress-free. Determine the stress in the aluminum rod if the temperature of the steel rod is decreased by 40°C. Neglect the weight of bar ABC.](https://theskyscorner.com/wp-content/uploads/2023/03/image-237.png)