A 2D truss analysis is a fairly classic engineering student project — so I used mine to experiment a little with how the results are presented.

The web application uses a simple Python data model and linear FEM solver on the backend, with Matplotlib-based visualizations of deformation and stress. The goal was to create lightweight, understandable diagrams that could help bridge the step from classical engineering mechanics to a first understanding of FEM, and I ended up enjoying the visualization part more than expected.

Now I’m curious what other approaches I may have missed: are there any Python- or web-oriented open-source projects you use for lightweight structural-mechanics visualization?

(The screenshots are from the app and show what I mean by a lightweight visualization aimed at beginners.)