ABSTRACT
To maintain fine discretization where it is needed, without an excessive number of elements on the one hand and without having to deal with numerical artefacts caused by the close boundary on the other hand, the discretized domain can be embedded into so-called infinite elements (Simulia 2012). The benefit of infinite elements in explicit analyses is investigated by comparing their behavior against two other modeling approaches. Infinite elements replace boundary conditions (BCs) so that the incoming stress wave can continue without being reflected thus causing interferences. They so inhibit numerical artefacts and are adequate to model a fine discretized domain within an infinite surrounding.
