NX Nastran The Premier FEA Solver for Structural Simulation An industry standard for over 40 years, Nastran is a finite element (FE) solver for stress, vibration, buckling, structural failure, heat transfer, acoustics and aeroelasticity analyses. Manufacturers as well as engineering suppliers in aerospace, automotive, electronics, heavy machinery, medical device, and other industries rely on NX Nastran software for their critical engineering computing needs so they can produce safe, reliable and optimized designs within increasingly shorter design cycles. Available as a standalone solver or integrated in NX CAE, NX Nastran is credited with driving millions of dollars out of product development costs because building a computer model and digitally testing performance is cheaper, faster and more effective than the physical prototyping processes it replaces. With increased product quality, companies can also save on potential warranty costs.