Chapter 1, Problem 13E

Use the finite element method to determine the axial force P in each portion, AB and BC, of the uniaxial bar. What are the support reactions? Assume: $E=\text{1}00\text{ GPa}$, the area of cross sections of the two portions AB and BC are, respectively, $\text{1}{0}^{-\text{4}}{\text{m}}^{\text{2}}\text{and 2}\times \text{1}{0}^{-\text{4}}{\text{m}}^{\text{2}},\text{ and }F=\text{1}0,000\text{ N}$. The force F is applied at the cross section at B.