The Visualize Buckling project, led by Professors Ron Ziemian and Constance W. Ziemian of Bucknell University in collaboration with Professor Siwei Liu of The Hong Kong Polytechnic University, aims to give engineering educators and students of all ages access to models that visually demonstrate different buckling modes.

Buckling can be a complex strength limit state that can occur in various forms--local, flexural (bending), torsional (twisting), lateral-torsional, or flexural-torsional--depending on factors such as member length, cross-section, material properties, and loading and support conditions.

To make this challenging topic more intuitive, you can bring structural behavior to life using graphical and 3D-printed visual aids. This interactive library of models demonstrates different buckling modes, where you can:

• Explore local, distortional, global and lateral‑torsional buckling
• Interact with 3D models: rotate, zoom and visualize contours
• Download printable STL files for classroom demonstrations
• Use concise descriptions and tags to quickly find examples

These models are easy to use in the classroom and offer students hands-on opportunities to observe and understand buckling phenomena--from cross-sectional to member- and system-level buckling. Each model is accompanied by a description of the failure mode and its behavioral nuances, an image of the 3D-printed product, and downloadable .stl files that allow users to 3D print their own models.

Visualize Buckling

(2025)