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Compare simulation software features

Explore the differences between Autodesk Nastran In-CAD software, Simulation Mechanical, and Inventor Professional software.

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Design and engineering tools plus simulation, tooling, and routed systems.

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At a glance

  • Professional-grade mechanical design and 3D CAD tools
  • Powerful simulation, tooling, and routed system tools
  • General purpose finite element analysis (FEA) tool for engineers and analysts
  • For designers, engineers, and analysts
  • Adds multiphysics capabilities to finite element analysis (FEA)

Pay as you go for the latest desktop software with lower up-front cost, 1-on-1 web support, previous version use, and access to select cloud and software services. Learn more.




Embed into Inventor


CAD file translators

Associativity with Inventor

Associativity with SOLIDWORKS

Associativity with Pro/Engineer and Creo

Associativity with SpaceClaim

Associativity with Rhinoceros

Direct modeling with SimStudio Tools

Defeaturing with SimStudio Tools

Parametric design studies for Inventor models

Extensive materials library

2D, beam, and plate modeling

Automatic surface meshing

Automatic tetrahedral meshing

Automatic hexa-dominant meshing

Automatic midplane meshing

Pressure vessel design and meshing

Rigid bonding

Welded contact

Surface contact with friction

Sliding contact without separation

Separation contact without sliding

Shrink fit contact (with or without sliding)

Thermal contact (with or without resistance)

Steady-state heat transfer

Transient heat transfer

Static stress


Natural frequency (modal)

Modal with load stiffening

Response spectrum

Random vibration

Frequency response

Transient stress (modal superposition/direct integration)

Critical buckling load

Dynamic design analysis method

Large displacement

Nonlinear material models

Flexible and rigid-body motion

Nonlinear buckling

Dynamic nonlinear analysis (MES)

Thermal-structural coupling

Fluid-thermal coupling    

Fluid-structural coupling


Electrostatics-thermal (joule-heating effect)

CFD interoperability

Moldflow interoperability

Contour display

Vector display

Isoline and isosurface display

Custom result types

Stress linearization

Slice planes

Mirror planes

3D visualization for 2D, plate, and beam

Customizable presentations


Image and CSV file export

Custom reporting (PDF, HTML, Word)

Parallel Windows solvers

Vault data management interoperability

Showcase interoperability

RecurDyn interoperability

Topology optimization