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# Theoretical & Practical Aspect of FEA

Sathish Kumar
28/01/2022 1 0

Methods to Solve any Engineering Problems:

- Analytical Method

- Experimental Method

- Numerical Method

Different Numerical Merhods:

- Finite Element Method

- Finite Volume Method

- Boundary Element Method

- Finite Difference Method

DOF:

Minimum number of parameters requried to completely define the position of an entity in free space called Degree of freedom.

Why do we mesh out parts in FEA?

Theory behind is to make calculation at only limted number of points andthen interpolate to the entire domain.

- High Visualization

- Lesser Design Cycle time

- Lesser no. of prototypes

- Lesser testing

- Optimum Design

Why Tria Elements are restricted near critical areas?

Tria elements are more stiffer than quad elements, so that will fetch results in lesser stress or displacements. Quad elements are chosen near critical areas to get better accurate results.

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