An elastic bar of length L. uniform cross sectional area A, coefficient of thermal expansion α and Young's modulus E is fixed at the two ends. The tempera...

A simply supported beam is subjected to a uniformly distributed load. Which one of the following statements is true?

Consider the stepped bar made with a linear elastic material and subjected to an axial load of 1 kN, as shown in the figure. Segments 1 and 2 have cross-se...