FEA is a general numerical technique for solving partial differential equations.  This techniques can be particularly useful for solving stress analysis problems.  This table gives an incomplete outline of the types of FEA problems that can solved using modern computer programs.  During my career as a stress analyst I have become proficient with several of the most popular commercial programs as well as some of the more specialized programs.  These FEA programs include the following:

• MSC Nastran - general purpose solver that is very popular in the aerospace industry

• NEi Nastran - general purpose solver that is used across multiple industries

• ANSYS - general purpose solver that is used across multiple industries

• ABAQUS - general purpose solver that is used across multiple industries

• NISA - general purpose pre/post processor and solver that is used across multiple industries

• ENDURE - general purpose fracture mechanics and damage tolerance analysis

• FLAGRO - general purpose fracture mechanics and damage tolerance analysis

• AFGROW - general purpose fracture mechanics and damage tolerance analysis

• Cosmos/M - general purpose pre/post processor and solver that is used across multiple industries

• TEXLESP - special purpose nonlinear solver that is used in solid rocket and rubber industries

• TEXVISC - special purpose linear viscoelastic solver that is used in solid rocket and rubber industries

• Femap - general purpose FEA pre and post processor

• Patran - general purpose FEA pre and post processor

• Solid rocket motors

• Space station

• Other