Particle scale force sensor based on intensity gradient method in granular photoelastic experiments

The intensity gradient method ( G ^2 method), namely computing the light intensity gradient-squared, is a widely used non-invasive experimental method to extract stress information from quasi-two-dimensional photoelastic granular materials. Previous works show that calibrated G ^2 is an accurate mea...

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Bibliographic Details
Main Authors: Yiqiu Zhao, Hu Zheng, Dong Wang, Meimei Wang, Robert P Behringer
Format: Article
Language:English
Published: IOP Publishing 2019-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/ab05e7