Balloons fly away if not capped, valve bodies have similar issue.

A small start that can go as far as you want to work.

Perform a an acoustic test and simulate with FEA without leaving home.

Comparison of element types - careful, they are different.

Model this simple but effective pressure gage device.

Bolts fail and guitars can't be tuned without it.

Run demo, then spend your remaining career understanding what it means.

Helmholtz and his resonator.

Buckling done 3 ways.

Diesel Piston, easy to set up, easy to extend

Pendulum dynamics

Assess a mallet for natural frequency, excite a mode using rap test and harmonic input.

Contact with friction. Easy to change and observe

More examples of how constraints affect results.

Some guidelines to be sure you are getting it right.

How to include plasticity effects, important considerations.

Use contact condition to introduce press fit condition. How to interpret stresses.

More examples of how constraints affect results.

Minimum conditions to suppress rigid body motion. More examples of how constraints affect results.

Subtle changes in boundary conditions can have big impact on results. More examples of how constraints affect results.

How grid size affects results, how to observe convergence (realistically).

Simplest computer board, assess for thermal and vibration.

Start here. Quick start to finite element in under 1000 nodes. Mesh, BC's, contact.