Analysis of Large Systems by Method of Tearing
When a system is too large to be handled as a whole (the final stiffness or flexibility matrix exceeds the main memory capacity of the machine), there are two things to be done; both involve partitioning. The first one is to partition the stiffness/flexibility matrix and operate on the sub-matrices one at a time; the second one is to partition the physical system into smaller units (sub-systems) and analyze each unit independent by satisfying the force and displacement compatibilities at the intersections where the partitioning takes place.
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