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\title{Coupled Lagrangian - Eulerian}

\author{Jacques Flament}

\date{ }

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\maketitle
We will present the details of a 2D method adapted from a 1D method in
order to handle the interaction of a low deformable object with a highly
deformable object.

The low deformable object is treated by a Lagrangian Wilkins code and le
highly deformable object is treated by a Eulerian BBC code.

The coupling treats the contact between the two objects by inserting a
surface pressure in-between so as to maintain their borders at a null
distance and let them slide freely over each other.

We will present results about a hard ball penetrating into a soft plate.

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