a) θe=EeAe
b) θe=EeAeε0
c) θe=EeAeε0\(\begin{Bmatrix}l \\ m \end{Bmatrix}\)
d) θe=EeAeε0\(\begin{Bmatrix}-l \\ -m \\l\\m\end{Bmatrix}\)
Answer: d
Explanation: In a truss, temperature effect is arised then thermal stress problem is considered here. Since the element is simply a one dimensional element when viewed in local co-ordinate system, the element temperature load in the local co-ordinate system.
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