• Dan Russell of Penn State offers this analysis and animations of torsional modes in a rectangular bar

https://www.acs.psu.edu/drussell/Demos/Torsional/torsional.html

Additional work is under way on animations of flexural modes, check it out here: http://www.acs.psu.edu/drussell/Demos/Flexural/bending.html

 

• Russell also offers analysis of modes in some popular demonstration objects:

Tuning fork: https://www.acs.psu.edu/drussell/Demos/TuningFork/fork-modes.html

Baseball Bat: https://www.acs.psu.edu/drussell/Demos/batvibes.html

 

• Falstad has a simulation of flexuralwaves in a bar, with many options available for setup and parameters. Be sure to check out the drop down menu of configurations as well as the parameter sliders.

http://www.falstad.com/barwaves/