By DE Editors
Included in the V9.1 release of NEi Nastran by Noran Engineering, Inc. (NEi; Westminster, CA) is an improvement in the ability to create models that simulate true surface-to-surface contact. The enhancement, called Automated Surface Contact Generation (ASCG), automatically finds and sets up the appropriate contact between different bodies within a specified proximity.
This feature, which can cut run times from hours to minutes, can be used on legacy models. Using ASCG, users can add surface contact to an existing Nastran model input file or replace gap contact with the more robust surface contact using only a single command.
ASGC also enables higher levels of real-world fidelity for virtual testing (sliding, welded, and free movement between surfaces); it includes modeling difficult features like dissimilar shell meshes from extracted mid plane models, shell face to shell edge with or without gaps, mid surface meshes, and offset welds.
Automated Surface Contact Generation Usage in NEi Nastran can be downloaded as a white paper or PowerPoint by enrolling in the NEi Knowledge Base Center.
Contact Noran Engineering, Inc. (NEi) for more information.
Sources: Press materials received from the company and additional information gleaned from the company’s website.