A steel rod of length L and diameter D, fixed at both ends, is uniformly heated to a temperature rise of T. The Young's modulus is E and the coefficient of linear expansion is . The thermal stress in the rod is

A steel rod of length L and diameter D, fixed at both ends, is uniform

1.	A steel rod of length L and diameter D, fixed at both ends, is uniformly heated to a temperature rise of T. The Young's modulus is E and the coefficient of linear expansion is . The thermal stress in the rod is
A.	0
B.	T
C.	E T
D.	E TL
Answer» D. E TL

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A steel rod of length L and diameter D, fixed at both ends, is uniformly heated to a temperature rise of T. The Young's modulus is E and the coefficient of linear expansion is . The thermal stress in the rod is

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