Types of Simulation Models | Different Types of Analysis | FEA Simulation

FEA Simulation

In this article different types of analysis in simulation models are briefly explained. Some of the modules comprised are structural, thermal, CFX, and FE Modeler analysis types are explained here.

Originally FEA is developed for 2D type simulation and analysis (Plane stress). When 3D simulation and analysis introduced, which increases number of simultaneous algebraic equation to solve the problem. Here they introduced high order mesh elements for faster solving of the problem. Examples are triangular and quadrilateral mesh elements geometry, which define the coordinates of the nodes.

FEA Finite Element Analysis

FEA splits a particular component into several elements. Elements are reconnected at nodes, which glued the elements together. Normally for a entire component constructing a algebraic equations is very difficult. So the components are split into elements and the elements connected at nodes. For each elements solving the algebraic equation is very easy. When combined all the equations, we solve the problem for the entire components.

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Analysis types available in Simulation are

Linear Stress:

Determines deflections, stresses, factor of safety etc., based on standard strength of materials concepts under static loading.


Determines natural frequencies of a system (free Vibration), including the effects of loading on a pre-stressed structure.

Heat Transfer:

Steady state thermal analysis to solve for temperature field and heat flux. Temperature dependent conductivity and convection along with Thermal stress analysis.


Determines structural response of system under sinusoidal excitation as a function of frequency.

Linear Buckling:

Determines failure load or safety factor for buckling and its buckling mode shapes.

Shape Optimization:

Indicates areas of possible volume reduction based on load paths through the part using topological optimization technology.

Nonlinear Structural:

Calculates deflections and stresses under static loading, accounting for large deflection effects, plasticity and contact non linearities.

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Benefits of FEM

Many specializations under Mechanical Engineering’s umbrella, such as aeronautical, bio mechanical, and automotive industries, are commonly using integrated FEM in product design and development. Several modern FEM packages include specific components such as thermal, electromagnetic, fluid, and structural working environments.

The benefits of FEM consist of “increased accuracy, enhanced design and better insight into critical design parameters, virtual prototyping, fewer hardware prototypes, a faster and less expensive design cycle, increased productivity and increased revenue”.

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