Finite element modelling of unbounded media Aus dem Inhalt: Displacement velocity and acceleration unit impulse response with dynamic stiffness and rational approximation. Forecasting method. Consistent infinitesimal Finite Element cell method applied to bounded medium. Damping solvent extraction for dynamic stiffness and interaction force. Fundamentals of damping solvent extraction method. Doubly asymptotic multi directional transmitting boundary. Concept and numerical implementation of doubly asymptotic multi directional transmitting boundary. Accuracy and modelling procedure of doubly asymptotic multi directional transmitting boundary.