Node activation technique for finite element system

In this work, node activation technique is proposed for finite element system through activation concept and meshless approximation techniques such as MLS(moving least squares method). By using the proposed node activation technique, one can activate only the concerned nodes in large finite element system. Consequently only the nodal degrees of freedoms of interest are taken as unknown variables, and the other degree of freedoms can be deactivated from the set of unknown variables. If we are interested in the solution some of region in the finite element system, we can activate the nodes in that region and deactivate the other nodal degree of freedoms. If another region is of interest, we can change the set of activated nodal points and reanalyze the finite element system. Also if we activate only the representative nodes in the finite element system, one can obtain the solution at the selected nodes with high accuracy.