NEiNastran represents state-of-the-art Nastran finite element analysis software, FEA, for the PC platform. NEiNastran offers a complete suite of cost effective computer-aided engineering, CAE, structural analysis software including: linear static, buckling, prestress, modal, dynamics, nonlinear, steady state, transient heat transfer as well as specialized analysis types such as DDAM, composites, optimization, fatigue, CFD, and nonlinear transient response. NEi Nastran can be used with all major CAD packages, including, Autocad, Catia, PTC, SolidWorks. And, its Nastran solver can be used with many Pre/Post Processors and Modelers, like UGS Femap, Altair Hypermesh, BetaCAE Ansa, MSC Patran. Or, as a candidate replacement for MSC.Nastran, NX Nastran, Algor, Ansys, Abaqus, Cosmosworks, Comosm.