A copper bar with a rectangular cross section is held without stress between rigid supports (see figure). Subsequently, the temperature of the bar is raised 50°C.
Determine the stresses on all faces of the elements A and B, and show these stresses on sketches of the elements. (Assume α = 17.5 × 10-6 / °C and E = 120 GPa.)

Transcribed Image Text:

45లం