## Chapter 14: Interactions

Introduction

The Interactions dialog panel lets you define interactions between the various Parts of your model.

Buttons at the top of this panel let you choose which type of interaction you want to set up:

Lagrange/Lagrange

  Click this button to set up impact / slide interactions between Lagrangian Parts (Parts using a Lagrange, Shell, Beam or SPH solver).

Euler/Lagrange

  Click this button to set up coupling between Lagrangian Parts and Eulerian Parts.

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