It is desired to use the finite element method to solve the two plane truss problems shown in the figure below. Assume \(A E=10^{6} \mathrm{~N}, L=1 \mathrm{~m}\). Before solving the global equations \([\mathbf{K}]\{\mathbf{Q}\}=\{\mathbf{F}\}\), find the determinant of \([\mathbf{K}]\). Does \([\mathbf{K}]\) have an inverse? Explain your answer.

Transcribed Image Text:

3 L3 2 3 y L3 2 X 1 1 2 2 L L 1,000 N 1,000 N