Consider a fixed-fixed steel beam with the length (=0.1 mathrm{~m}), the cross-sectional area (=4 times 10^{-4} mathrm{~m}^{2})

Question:

Consider a fixed-fixed steel beam with the length $=0.1 \mathrm{~m}$, the cross-sectional area $=4 \times 10^{-4} \mathrm{~m}^{2}$ and the area moment of inertia $=$ $0.5 \times 10^{-8} \mathrm{~m}^{4}$. Using the finite element method, determine the first three natural frequencies and compare them to the theoretical values.

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