.. _v2.03.201-mode_E:

E modeling
==============

Characteristics of modeling
-----------------------------------

Modeling E is used to test the effectiveness of layer CALM by adding an absorbent border in parallel on the edge DE to impose the plane wave :math:`v_{impo}` in the direction :math:`-X` (:numref:`v2.03.201-Geom1`). To do this, it is necessary to avoid creating a double contrast created by the CALM layer and the absorbent border. Since we want to use the absorbent border exclusively to introduce plane wave loading, a reduction coefficient will be applied to the elastic characteristics of the border which will then be re-applied to the time signal.

Tested sizes and results
------------------------------

On this modeling, we will perform a non-regression test on the peak value of the DX displacement at time :math:`t = 2.598` s.