What is FEA and CFD(2).pdf

It is importatnt

1. FEA/CFD for
Biomedical
Engineering
Week 1 Part 1: What is
FEA/CFD

2. Computer Aided Engineering
•Computer aided engineering is the usage
of computer tools through the engineering
process
•You have already been looking at the
usage of CAD and CAM
•Another aspect focuses on Analysis and
can broadly be split into Structural (FEA)
and Fluid (CFD)

3. Dr Ali Jabran
Lecturer in Biomedical Engineering
Academia Healthcare Industry

4. Computational Simulation
Mechanical Testing
Prosthetics
Medical Device Development
Myoelectric prosthesis
Shoulder
implants
Patent-pending
My Research Background

5. What is FEA?
Finite Element Analysis replaces a complex problem with
many simple problems. It subdivides the model into many
small pieces of simple shapes called elements.
Equations (using classic mechanics) are used to describe
force/ displacement of each node
Entire structural behaviour calculated combining the
equations
CAD Model
Subdivided into
Small Pieces
CAD Model FEA results

6. Examples of FE models

7. Examples of FE models

8. Traditional Design Cycle
•Design a model.
•Manufacture a prototype.
•Test the prototype under
various loading conditions.
•Based on results, modify the
model, build a new
prototype, and test it again
until you are satisfied.
•Finalise design and move to
production

9. Benefits of FEA/CFD Analysis
•Design cycles are expensive and time-
consuming.
•Analysis reduces the number of design cycles.
•Analysis reduces cost by testing your model
using the computer instead of expensive field
tests.
•Analysis reduces time to market.
•Analysis can help you optimize your designs by
quickly simulating many concepts and scenarios
before making a final decision.