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Multimedia Library

NEi Nastran has full Nonlinear Event Simulation capability. You can produce animations in a variety of formats that allow you and/or your clients to actually see what is happening with your product analysis. Please review some of the sample animations below.

Put NEi Nastran to work for your company today and see your products in action before they enter the marketplace.

Tube Buckling

A nonlinear static post-buckling analysis of a thin-walled square tube. The analysis involves large displacements and rotations with a nonlinear plastic material and surface contact. Note the secondary buckling that occurs after the outer surfaces near the fixed end contacts.

Spinal Implant Screw

Analysis of a spinal implant screw assembly involving surface contact with friction, weld elements, and large displacements and rotations.

Coil Spring

A nonlinear static analysis of a coil spring using large displacements and rotations with surface contact. The spring has an enforced moment applied to the end while the center is held fixed. Significant sliding contact occurs and stress redistribution is observed as the gaps between the coils close.

3D Gears

A nonlinear static analysis of a worm gear assembly using large displacements and rotations and surface contact. The gear is held fixed about its rotation center.

Automotive Door

A nonlinear static analysis of an automotive door using surface contact.

Medical Implant

A nonlinear static analysis of a medical implant. The analysis involves large displacements and rotations with a nonlinear material and surface contact. The analysis is highly challenging as the contact involves a large sliding motion with an increasing contact force. Additionally, the frictional forces increase as the part moves down and the contact surface area is changing continuously. Near the end of the simulation, the large stress concentration and resulting local yielding is clearly visible.

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