Localized Partitioning of Three LatticesNote that nodes 1, 2 and 3 are all connected to the common node C.This means that each node doesn’t have to know to which node(s) itis connected. This makes the formulation of each lattice completelyfree and localized. If the classical method were used, then to which each node(s) a node is connected must be specified, thus leading to global formulation.When a beam impacts a block, Newton’s 3rd law states that the reaction forces are equal and opposite. However, in computationthis can lead to the coupling of very stiff and very soft interactions, thus making the accurate computing of the reaction force computtionally challenging. Localized formulation can regularize this mismatch as the reaction forces are independently defined.COMPUTATIONAL REGULARIZATION:Contact Impact Problem of Non-Matching Interface GridsContact frame concept that comes from the common node idea allows the introduction of independent interfaces fornon-matching
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