In FEA, after we have the Global Stiffness Matrix of a Plane Frame Member, we construct and assemble the Plane Frame Structure Stiffness Matrix. To be able to so, one needs to determine a mapping between the rows and columns of the global stiffness matrix of a member and those of the structure stiffness matrix. Suppose I have 3 memeber Global Stiffness Matrices (shown below) and want to assemble the structural global matrix. How to I superimpose them such that the u2, v2, theta2 of the matrices are added when superimposed?
MATLAB: How to superimpose certain indices of matrices.
feamatrixmatrix manipulationsuperimposed
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