Using Centrifugal Force to Study Natural Hazards

Using Centrifugal Force to Study Natural Hazards

Author: Natural Hazards Engineering Research Infrastructure December 7, 2021 Duration: 10:28

On this episode, natural hazards Jason DeJong discusses the experimental centrifuges, including the giant nine-meter centrifuge, at the UC Davis Center for Geotechnical Modeling, a NHERI facility. DeJong explains how rapidly spinning centrifuges create “hypergravity” — a force up to 200 Gs — to study how structures and soil withstand natural hazards. 

Here’s how it works: researchers place a physical model in the centrifuge bucket and subject it to a high-speed, hypergravity field. Then, using equations, they scale the loading forces proportionate to the model. This crazy, high-speed environment, enables scientists to see and measure the stresses of earthquakes, waves and wind on natural and built environments.

“That proportional scale is amazing. We can simulate real-world systems that we can’t really do any other way.” - Jason DeJong

Jason DeJong  

NHERI UC Davis Centrifuge


The forces that shape our world aren't always gentle. Earthquakes, hurricanes, floods, and tornadoes are a reality of life on this planet, but the scale of their impact is something we can influence. DesignSafe Radio, from the Natural Hazards Engineering Research Infrastructure team, delves into the human ingenuity working to soften the blow of these events. This isn't just a theoretical discussion; it's a close look at the rigorous testing, data, and engineering research funded by the National Science Foundation that aims to protect communities. Each episode pulls back the curtain on how scientists and engineers are learning from past disasters to fortify our future. You'll hear conversations about the tools and methods transforming how we understand structural resilience, offering a tangible sense of how research translates into real-world safety. The goal is straightforward: to ensure the next natural hazard doesn't escalate into a catastrophe for families and neighborhoods. Tune into this podcast for a grounded perspective on the intersection of science, education, and practical solutions, where complex research is made accessible and the focus remains firmly on building a more durable society.
Author: Language: English Episodes: 100

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