Intruder Impacts

Using photoelastic discs and a high-speed camera, scientists were able to visualize forces as a foreign object, such as a meteor, made an impact. The impact bears stress in “force chains” that are represented by the lightning-like response in the video. 

Related Abstract

Gray arrow  2D Granular Impact Dynamics with Photoelasic Particles

Reporters and Editors

Journalists wishing to reproduce this image for news stories about related research should include this video credit: Abe Clark, R.P Behringer, Duke University.