1. Reference problem

1.1. Geometry

\(F(t)\)

\(A\)

The coordinates of the points are given in meters (\(m\)):

Length	1
Height	0.1

1.2. Material properties

The material has an isotropic elastic behavior:

Young’s module	200 GPa
Poisson’s ratio	0.0
Density	7800kg/m3
Coefficient of friction	0.2

1.3. Boundary conditions and loads

Initially, the two beams are at rest and not deformed. The dynamic evolution of the two structures is such that: in \(X=0\), the two beams are embedded and in \(X=L\), the lower beam is free while the upper beam is subject to a « Heaviside » impulse ( Concentrated force constant over time).

1.4. Interface description

The two surfaces are initially in contact. In addition, the choice was made to make these two contact surfaces compatible initially.