## What are Finite Element Analysis (FEA)

### #FEA #Numerical methods #First Vlog FEA

The term Finite Element Analysis (FEA) method is usually associated with solid mechanics. On the other hand, the term Computational Fluid Dynamics is, by definition, fluids oriented. Although both methods works on discretization of geometry based on the idea of chopping space up into small, but finite rather than infinitesimal, spaces or "elements." Then the equations are written that describe what passes through the boundaries of the small space, whether it be force and displacement or flow and pressure.
To dive in details I suggest you to view this finite element analysis book, Finite element analysis pdf (Altair Engineering)

Software Based FEA : In Computer Aided Engg. (CAE) all activities are perform virtually. Start from concept generations to final analysis of complete system. In concept generation, itself various alternative methods are designed to meet packaging and system requirements with the help of earlier studies and concepts. These thought are transform into design preparation/CAD model preparation. These CAD are generally prepared in specialized software Creo, CATIA, NX, Solid work etc. Then these CAD models are transform into neutral data exchange format to transfer into specialized FEA analysis software like ANSYS, HyperWorks etc. To perform any computation flow analysis following three major steps are required

1. Pre- Processing- This is the initial step of FEA simulation process which helps to perform crucial engineering simulation in order. It is process that must be performed before doing the actual simulation
2. Solver- The algorithm is the iterative numerical procedure the FEA solvers follow in approximating the solution.
3. Post processing -Post-Processing involves extracting the desired flow properties or result after analysis as well as visualization tool. It represent in different methods like contour plots, vector plot, streamlines, data curve etc. for appropriate graphical representations and report. Popular software are available in markets are Hyperviw, Ansys post etc

Altair hyperworks Suit seprated as preprocessors, solver and postprocessor

#### Pre-processing

Geometry Cleanup - Meshing- Applying Boundary Conditions
Maximum Human efforts are in this phase of Fea Work, We have Convert Geometrical File in to FE modal. Through Discritization or meshing

HyperMesh is a popular multi-disciplinary pre-processor, which manages the generation of large and complex models.

HyperCrash is a CAE pre-processor developed to support RADIOSS, Altair's non-linear finite element solver.

MotionView – Solver-neutral Multi-body Pre-processor

#### Solving

After Preprocessing Where We had Converted geometrical data into mathematical model this time the compter work hard to solving that mathematical model. we use different solvers for different type of problems the solvers for hyperworks are mentioned below

OptiStruct – Structural Analysis Solver (linear and non-linear); solution for structural design and optimization

RADIOSS – Structural Analysis Solver (highly non-linear problems under dynamic loadings); an industry standard for automotive crash and impact analysis

MotionSolve – Multi-body Solver; an integrated solution to analyze and optimize multi-body system performance

HyperXtrude – Metal & Polymer Extrusion Solver; an advanced solver for manufacturing process simulations and validations

HyperForm – Metal Forming Solver

AcuSolve – General-purpose Finite Element Based CFD Solver

FEKO – 3D Electromagnetic Solver

#### Post-processing

At the post processing stage we are Extracting the useful informations and conclusions out of result files generated by the solver.
We plots countours, Graphs, Volume renders Etc.

HyperView- is a complete post-processing and visualization environment for finite element analysis, CFD and multi-body system data.

HyperGraph- HyperGraph is a powerful plotting and data analysis tool to create a complete data analysis system for any organization.

# 1 minute FEA

Just Watch this 1 minute Video to understand
Basic concepts of Finite Element Analysis (FEA)
Software based Finite Element Analysis (FEA) method

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