Contents Part III: Model Tutorials | Chapter 3: Create an LS-DYNA Input Deck for an S-Rail Impacting a Rigidwall | Print page 3.1. Import IGES GeometryClick File > Open > IGES File.Open channel.igs.Click File > Import > IGES File.Open flat.iges.Click the ShaGeo render button. « Chapter 3: Create an LS-DYNA Input Deck for an S-Rail Impacting a Rigidwall 3.2. Mesh Surfaces »