Finite Element Analysis (FEA)
Definition
Finite Element Analysis (FEA)
A computerised simulation method that breaks down a model into small elements to analyse how it responds to physical forces.
- Breaks a part into small elements (a “mesh”)
- Applies loads or conditions (e.g. weight, wind)
- Calculates the response of each element
- Displays results using colour-coded stress maps or deformation visuals
Why It’s Useful
- Identifies weak points in a design
- Helps test different materials and shapes
- Reduces the number of physical prototypes needed
- Supports safer, lighter, more efficient products
Key Outputs of FEA
1 - Stress Analysis: Identifies areas of high stress that may lead to failure.
2 - Displacement: Shows how much a part will deform under load.
3 - Factor of Safety: Indicates how much stronger a design is compared to the expected load.
4 - Thermal Analysis: Predicts temperature distribution and heat flow.
While FEA provides valuable insights, it is only as accurate as the assumptions and inputs used. Real-world testing is often necessary to validate the results.
