How to Measure Convergence
So now that the importance of convergence has been discussed, how can it be measured? What is a quantitative measure for convergence? One way to measure it would be to…
What is Convergence in Finite Element Analysis?
A typical engineering design involves the prediction of deflections/displacements, stresses, natural frequencies, temperature distributions, etc. These parameters are used to iterate on material parameters and/or geometry to optimize their behavior.…
Higher-order Elements
Becoming more popular in the finite element field, higher-order elements capture a more complex data representation than their linear element predecessors and reduce the required number of elements needed to…
Different Mesh Refinement Metrics
Studying convergence requires choosing an appropriate mesh refinement metric. This metric can be either local or global. That is, the metric can be defined at one location in the model or…
What Is Finite Element Mesh Refinement?
Engineers and scientists use finite element analysis (FEA) software to build predictive computational models of real-world scenarios. The use of FEA software begins with a computer-aided design (CAD) model that represents the…
Aspect Ratio (FEM mode)
Aspect ratio is the measure of a mesh element's deviation from having all sides of equal length. A high aspect ratio occurs with long, thin elements. Entering an overly large…
What are the advantages of Finite Element Method
Finite Element Analysis allows you to solve any engineering problem. This means you can verify a product/structure without any prototypes! Also, FEA allows for a great presentation of outcomes, making…
VARIATIONAL METHODS
Structural Mechanics represents the system of algebraic equations of equilibrium for the elastic system. These two equations do not yet reflect the presence of an essential boundary condition, and det(K)…
Structural Analysis: Finite Element Method
INTRODUCTION There are two version of FEM: 1. Flexibility Method or Force Method 2. Stiffness Method or Displacement Method. The set of equations in the stiffness method are the equilibrium…
