This article is a tutorial on the practical implementation of a method of measurement of minute deformations based on multiple scattering. This technique has been recently developed and has proven to give new insights into the spatial repartition of strain in a granular material. We provide here the basics to understand the method by giving a synthetic review on diffusing wave spectroscopy and multiple scattering in granular materials. We detail a simple experiment using standard lab equipment to pedagogically demonstrate the implementation of the method. Finally we give a few examples of measurements that have been obtained in other works to discuss the potential of the method.
Spatially resolved measurements of micro-deformations in granular materials using diffusing wave spectroscopy
Axelle Amon, Alesya Mikhailovskaya, Jérôme Crassous; Spatially resolved measurements of micro-deformations in granular materials using diffusing wave spectroscopy. Rev. Sci. Instrum. 1 May 2017; 88 (5): 051804. https://doi.org/10.1063/1.4983048
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