This geometry is represented via a CAD model. The Mesh Refinement ProcessĪ good finite element analyst starts with both an understanding of the physics of the system that is to be analyzed and a complete description of the geometry of the system. This process of mesh refinement is a key step in validating any finite element model and gaining confidence in the software, the model, and the results. As these elements are made smaller and smaller, as the mesh is refined, the computed solution will approach the true solution. These equations approximately represent the governing equation of interest via a set of polynomial functions defined over each element. The finite element mesh is used to subdivide the CAD model into smaller domains called elements, over which a set of equations are solved. The accuracy that can be obtained from any FEA model is directly related to the finite element mesh that is used. This information enables the prediction of real-world behavior, often with very high levels of accuracy. The use of FEA software begins with a computer-aided design (CAD) model that represents the physical parts being simulated as well as knowledge of the material properties and the applied loads and constraints. Physics, PDEs, and Numerical Modeling Mesh Refinement What Is Finite Element Mesh Refinement?Įngineers and scientists use finite element analysis (FEA) software to build predictive computational models of real-world scenarios.
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