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[FAQ]

During a contact interaction, the contact detection points can interact with different target elements, depending on the contact status. The program calculates the nodal connectivity of the contact element based on the configuration at each equilibrium iteration, which can make the contact calculations computationally expensive. Choosing the small sliding option, each contact detection point always interacts with the same target element, as determined in the initial configuration. By doing so, the overall computational cost of the model is reduced.