Omicron is a standalone Finite Element Analysis (FEA) software capable of running linear perturbation analyses. This application is built using the Microsoft .NET Framework (C# programming language).

Based on a finite element mesh, the user can build FE-models by first creating node sets, element sets, and surface sets. Using these sets, the user can apply concentrated loads (nodal forces), surface loads (surface tractions or pressures), body loads (gravity or inertia forces), and boundary conditions (imposed displacements).

Omicron also has built-in capabilities for visualizing and interacting with 2D/3D models and results.

Currently available full-integration elements for plane stress and plane strain conditions:

• C2D3: A solid triangle with 3 nodes and 1 integration point.

• C2D4: A solid quadrangle with 4 nodes and 4 integration points.

Currently available full-integration elements for general 3D stress:

• C3D4: A solid tetrahedron with 4 nodes and 1 integration point.

• C3D5: A solid pentahedron (pyramid) with 5 nodes and 5 integration points.

• C3D6: A solid pentahedron (wedge) with 6 nodes and 6 integration points.

• C3D8: A solid hexahedron with 8 nodes and 8 integration points.

Omicron has been validated by several case studies whose results have been directly compared with results from equivalent Abaqus models. Omicron results are very similar to results from Abaqus.

2D Plane Stress State

Static Analysis of a Plate with a Central Hole

2D Plane Strain State

Static Analysis of a Structural Section

General 3D Stress State

Static Analysis of a Bracket

2D Plane Stress State

Buckle Analysis of a Beam

• ActiViz .NET OpenSource Edition: A 3D visualization library for .NET built around the open-source Visualization Toolkit (VTK). Omicron uses this library for visualizing finite element models and results. (About ActiViz .NET OpenSource Edition)

• Intel Math Kernel Library: An optimized library for scientific computing. Omicron uses this library to benefit from fast and optimized computational routines, namely the PARDISO solver (used in static analyses for solving large sparse linear algebraic systems) and the Extended Eigensolver (used in frequency analyses for solving large sparse generalized eigenproblems). (About Intel Math Kernel Library)

• Windows Presentation Foundation: A UI framework that creates desktop client applications. Omicron is built around the .NET Framework, relying on WPF for it's graphical user interface elements. (About Windows Presentation Foundation)