Question: Derive k 1 2 for the 2 - node 2 - DOF FGM bar element with E = E 0 ( 1 + x L

Derive k12 for the 2-node 2-DOF FGM bar element with E=E0(1+xL) shown in Fig. 1 on the right.
Figure 1
Derive k 1 2 for the 2 - node 2 - DOF FGM bar

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