FEA
This page looks at some of the different finite element analysis methods I have used within Solidworks to analyse and improve my designs.
Stresses and strains in static objects to test material yield strength and toughness.
Comparing design parameters in order to optimise components.
Comparing stresses and strains within objects in movement from different heights.
Optimising strength to weight ratios within bicycle cranks.
Studying the stresses and strains of bicycle cranks under repeated loads over a set period of time to simulate real world effects.
Determining natural frequency of tubular wind chimes.
SETTING UP OF ANALYSIS
The following illustration gives a rundown of the required steps to successfully set up and run a static test (steps 1 – 4 are used in drop test analysis).
1. Suppress Non Essential Parts
All non essential features and fillets are excluded from the analysis.
2. Apply Mesh Control
Once a general mesh is applied, mesh control settings are used to refine the mesh around areas of finer detail - as shown here.
3. Material Set Up
Custom material properties are defined for specific results - yield strength and other details are important.
4. Connections
For static analysis’ between parts, contacts are used to inform relationships. No penetration connection. Parts may deform each other and are free to move.
5. Apply Fixed Geometry
Fixed geometry is applied to parts during static testing so that object does not travel through free space.
6. Apply Forces
Forces applied to part bodies, and specific locations to thoroughly analyse design and inform on areas of improvement.