[HTML][HTML] Photoelastic force measurements in granular materials
Photoelastic techniques are used to make both qualitative and quantitative measurements of
the forces within idealized granular materials. The method is based on placing a birefringent …
the forces within idealized granular materials. The method is based on placing a birefringent …
Enlightening force chains: a review of photoelasticimetry in granular matter
A photoelastic material will reveal its internal stresses when observed through polarizing
filters. This eye-catching property has enlightened our understanding of granular materials …
filters. This eye-catching property has enlightened our understanding of granular materials …
Variable stiffness soft robotic fingers using snap-fit kinematic reconfiguration
J Bastien, L Birglen - IEEE Transactions on Robotics, 2023 - ieeexplore.ieee.org
Versatile and secure gras** in robotic systems remains a difficult challenge to address
when objects possess a wide range of different properties (size, weight, friction coefficient …
when objects possess a wide range of different properties (size, weight, friction coefficient …
Fracture plugging zone for lost circulation control in fractured reservoirs: Multiscale structure and structure characterization methods
The stability of plugging zone has a great impact on the lost circulation control effect in
fractured reservoirs. In this work, the multiscale structure of plugging zone is described …
fractured reservoirs. In this work, the multiscale structure of plugging zone is described …
Mesoscopic structure characterization of plugging zone for lost circulation control in fractured reservoirs based on photoelastic experiment
X Yan, C Xu, Y Kang, X Shang, L You, H **g - Journal of Natural Gas …, 2020 - Elsevier
Drilling fluid loss into formation fractures is one of the most common and costly problems
encountered during the exploration and development of oil and gas resources. The stability …
encountered during the exploration and development of oil and gas resources. The stability …
Softer than soft: Diving into squishy granular matter
Softer than soft, squishy granular matter is composed of grains capable of significantly
changing their shape (typically a deformation larger than 10%) without tearing or breaking …
changing their shape (typically a deformation larger than 10%) without tearing or breaking …
Steady granular flow in a rotating drum: A theoretical nonlocal model for characterizing stress, velocity, and packing fraction profiles, encompassing grain shape …
In this work, we investigate the effect of particle shape, ranging from spherical to highly
concave, on steady flows in a rotating drum, a system that facilitates a continuous transition …
concave, on steady flows in a rotating drum, a system that facilitates a continuous transition …
Micromechanical description of the compaction of soft pentagon assemblies
We analyze the isotropic compaction of assemblies composed of soft pentagons interacting
through classical Coulomb friction via numerical simulations. The effect of the initial particle …
through classical Coulomb friction via numerical simulations. The effect of the initial particle …
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 …
squared, is a widely used non-invasive experimental method to extract stress information …
Evolution law and transformation mechanism of force chains in the flow of photoelastic particles under a flexible barrier
E Long, Q Chen, J Liu - Powder Technology, 2023 - Elsevier
The essence of large deformation flow in loose geological bodies lies in the breaking and
rebuilding of force chains at the microscopic scale. Therefore, it is crucial to investigate force …
rebuilding of force chains at the microscopic scale. Therefore, it is crucial to investigate force …