Convert IGES to SHE

Understanding IGES and SHE file formats

IGES (Initial Graphics Exchange Specification) is a widely used file format for exchanging 2D and 3D CAD data between different CAD systems. It stores geometry, annotations, and other design information in a text-based format, making it ideal for interoperability in engineering and manufacturing workflows.

SHE files are associated with ANSYS simulation software and represent shell element data used in finite element analysis (FEA). These files contain mesh and element information specifically for shell-type structures, which are essential in structural and mechanical simulations.

Why convert IGES to SHE?

Converting an IGES file to a SHE file is necessary when you need to use CAD geometry from IGES in ANSYS for shell-based finite element analysis. This conversion streamlines the workflow from design to simulation, ensuring accurate mesh generation and analysis.

How to convert IGES to SHE

Direct conversion from IGES to SHE is not typically supported by standalone converters. Instead, the process involves importing the IGES file into ANSYS or compatible pre-processing software, then exporting or saving the mesh as a SHE file. Here’s how you can do it using ANSYS Workbench:

1. Open ANSYS Workbench.
2. Drag and drop the Geometry module into the project schematic.
3. Right-click on Geometry and select Import Geometry → Browse to select your IGES file.
4. Once imported, open the Model module to access ANSYS Mechanical.
5. Generate the mesh, ensuring you use shell elements for the geometry.
6. After meshing, go to File → Export → SHE to save the mesh as a SHE file.

Recommended software for IGES to SHE conversion

• ANSYS Workbench – The most reliable and direct method for converting IGES geometry to SHE mesh files.
• SpaceClaim (part of ANSYS suite) – Useful for preparing and cleaning up IGES files before meshing.
• HyperMesh – Can import IGES, generate shell meshes, and export in formats compatible with ANSYS SHE files.

Tips for successful conversion

• Ensure your IGES file is clean and free of geometry errors before importing.
• Use shell meshing options in your pre-processor to create appropriate elements for SHE export.
• Check element quality and connectivity before exporting to SHE format.