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Schur complement of the global stiffness matrix
Posted 3 ago 2025, 03:46 GMT-4 API, Studies & Solvers, Structural Mechanics Version 6.3 0 Replies
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I am trying to calculate the Schur complement of the global stiffness matrix, I have already exported the matrix through the livelink. To calculate the Schur complement of the matrix, I have to figure out which part of the matrix corresponds to which node, therefore, are there any way for me to get how comsol assemble the matrix? Besides, I know that comsol has a schur complement solver, are there any way for me to perform this on the global matrix? (e.g. I got two same cascaded units, and I only need to calculate one stiffness matrix and cascaded them through the schur complement)
Hello Tianxi Meng
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