3D imaging finds link between crack complexity and material toughness
![cracks in brittle objects](/sites/default/files/styles/content_banner/public/2024-03/Low-Res_9d26db01%20Cropped.jpg?h=7e0ac27a&itok=kHARDJt0)
The scientists induced cracks in hydrogel samples with a standard Swiss Army knife (image: EMSI EPFL CC BY SA)
To determine complex crack patterns in real time, a series of fluorescent images was generated with a confocal microscope, and then stacked to assemble a unique, three-dimensional map of each fracture surface
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