Advanced Functional Materials

Cover image for Vol. 25 Issue 16

22_22/2012Digital Image Correlation: Visualizing Strain Evolution and Coordinated Buckling within CNT Arrays by In Situ Digital Image Correlation (Adv. Funct. Mater. 22/2012)

Digital image correlation is used for the first time to measure the spatially resolved strain evolution of compressed carbon nanotube columns. A consistent local critical strain criterion of 5% is discovered, unifying otherwise disparate column behavior. As reported by Jeffery W. Baur and co-workers on page 4686, this new capability enables the visualization of the inhomogeneous deformation inherent in many nanoscale and microscale materials.

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