Solution to Problem 268 Thermal Stress

Problem 268
The rigid bar ABC in Fig. P-268 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.
 

268 Steel and aluminum rods

 

Solution 268

 
Christian Panganiban
Christian Panganiban's picture

i cant imagine where this eq came from. "δT(st)−δst=0.5δal" pls help

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