Comparing Finite Element Analysis (FEA) Packages

Comparing Finite Element Analysis (FEA) Packages: SolidWorks Simulation, Inventor Nastran, MSC Nastran, and Patran

Finite Element Analysis (FEA) is a critical tool in engineering, allowing designers and analysts to simulate the behavior of structures under various conditions. Several software packages offer FEA capabilities, each with its strengths and weaknesses. This blog compares four popular FEA tools: SolidWorks Simulation, Inventor Nastran, MSC Nastran, and Patran.

1. SolidWorks Simulation

Overview:

SolidWorks Simulation is an FEA tool integrated into SolidWorks, a widely used CAD software. It is designed for engineers and designers who need simulation capabilities without requiring advanced expertise in FEA.

Key Features:

  • Fully integrated within SolidWorks, providing a seamless workflow.
  • Supports linear static, fatigue, thermal, and frequency analyses.
  • Utilizes an intuitive, easy-to-use interface.
  • Automatic meshing and adaptive meshing options.
  • Best suited for mid-level complexity designs.

Pros:

✔ User-friendly and easy to learn.
✔ Tight integration with SolidWorks.
✔ Good for design validation rather than deep analysis.
✔ Ideal for small to medium-sized assemblies.

Cons:

❌ Limited advanced non-linear and dynamic capabilities.
❌ Not as robust for high-end engineering simulations.

2. Inventor Nastran

Overview:

Autodesk’s Inventor Nastran is an FEA package built into Autodesk Inventor, utilizing Nastran’s solver to offer a more advanced simulation solution compared to SolidWorks Simulation.

Key Features:

  • Integrates Nastran solver, providing advanced simulation capabilities.
  • Supports linear and nonlinear static, dynamic, fatigue, thermal, and buckling analyses.
  • More extensive material modeling compared to SolidWorks Simulation.
  • Uses adaptive meshing and offers more control over element types.

Pros:

✔ More advanced than SolidWorks Simulation.
✔ Nastran solver ensures accurate results for complex problems.
✔ Seamlessly integrated into Inventor, allowing parametric study.

Cons:

❌ Steeper learning curve compared to SolidWorks Simulation.
❌ Not as feature-rich as standalone Nastran.

3. MSC Nastran

Overview:

MSC Nastran is one of the most powerful and widely used high-end FEA solvers. Developed originally by NASA, it is used in industries such as aerospace, automotive, and defense for complex structural analysis.

Key Features:

  • Supports linear and nonlinear static, dynamic, thermal, aeroelastic, and fatigue analyses.
  • Extensive material modeling, including composites and hyperelastic materials.
  • Highly customizable with scripting and API integration.
  • Can handle large-scale simulations efficiently.
  • Used for certification-level simulations in aerospace and automotive industries.

Pros:

✔ Extremely powerful and accurate. 

✔ Can handle high-end engineering simulations. 

✔ Wide industry acceptance, especially in aerospace and automotive. 

✔ Extensive support for composite materials.

Cons:

❌ Steep learning curve. 

❌ Expensive compared to SolidWorks and Inventor Nastran. 

❌ Requires more computational resources.

4. Patran (Pre/Post Processor for Nastran)

Overview:

Patran is a pre- and post-processing software designed for use with MSC Nastran. It allows engineers to set up FEA models and visualize results effectively.

Key Features:

  • Provides advanced meshing tools for complex geometries.
  • Supports multiple solver types, not just Nastran.
  • Includes optimization and automation tools.
  • Used primarily in high-end engineering applications.

Pros:

✔ Excellent pre- and post-processing capabilities. 

✔ Works seamlessly with MSC Nastran. 

✔ Can handle large-scale and complex models.

Cons:

❌ Requires expertise to use effectively. 

❌ Not an FEA solver itself; relies on external solvers like MSC Nastran.

Final Comparison Table

Feature SolidWorks Simulation Inventor Nastran MSC Nastran Patran
Ease of Use ⭐⭐⭐⭐⭐ ⭐⭐⭐ ⭐ ⭐⭐
Solver Power ⭐⭐ ⭐⭐⭐⭐ ⭐⭐⭐⭐⭐ N/A
Nonlinear Analysis ❌ ⭐⭐⭐ ⭐⭐⭐⭐⭐ N/A
Industry Application General Engineering Mid-Level Eng. Aerospace, Automotive, High-End Eng. Pre/Post Processing
Meshing Control Basic Advanced Very Advanced Advanced
Cost Low Medium High High

Conclusion

  • If you are a design engineer looking for quick validation, SolidWorks Simulation is ideal.
  • If you need more advanced simulation within a CAD tool, Inventor Nastran is a good middle ground.
  • For high-end simulations in aerospace and automotive, MSC Nastran is the best choice.
  • If you require an advanced pre/post processor for Nastran, Patran is the best option.


The right choice depends on your industry, budget, and simulation needs. If you’re working on certification-level simulations or complex materials, MSC Nastran is unbeatable. However, if you need integrated CAD solutions, Inventor Nastran and SolidWorks Simulation offer more convenience.

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