Pump Up the Jam: Granular Media as a Quasi‐Hydraulic Fluid for Independent Control Over Isometric and Isotonic Actuation
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Science"
DOI: 10.1002/advs.202104402
Abstract: Elastomer‐granule composites have been used to switch between soft and stiff states by applying negative pressure differentials that cause the membrane to squeeze the internal grains, inducing dilation and jamming. Applications of this phenomenon have… read more here.
Keywords: independent control; hydraulic fluid; quasi hydraulic; actuation ... See more keywords
Mechanics of bipedal and quadrupedal locomotion on dry and wet granular media
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Field Robotics"
DOI: 10.1002/rob.22121
Abstract: The effectiveness of exploration robots is contingent upon their capability and efficiency to locomote on contorted and multifaceted terrains. Traditional wheeled robots do not suffice at overcoming such terrains and complications they introduce. The proposed… read more here.
Keywords: locomotion; saturation; granular media; bipedal quadrupedal ... See more keywords
Tunnel excavation in granular media: the role of force chains
Sign Up to like & getrecommendations! Published in 2021 at "Granular Matter"
DOI: 10.1007/s10035-021-01141-2
Abstract: We investigate how force chains in a granular packing influence and change during a tunnel excavation process. A two-dimensional (2D) frictional cohensionless packing is considered under gravity and a set of contiguous particles are removed… read more here.
Keywords: force; granular media; force chains; tunnel excavation ... See more keywords
Analysis of velocity of granular media in cascade finishing by discrete element method with experimental validation
Sign Up to like & getrecommendations! Published in 2021 at "Granular Matter"
DOI: 10.1007/s10035-021-01154-x
Abstract: The cascade finishing used for surface finishing, cleaning, deburring, and stress relieving in industry has been increasing rapidly as a final manufacturing step in industry. The process was highly shown to be capable to improve… read more here.
Keywords: cascade finishing; velocity granular; velocity; granular media ... See more keywords
Study on Discrete Element Simulation of Secondary Rock Failure Characteristics in Granular Media
Sign Up to like & getrecommendations! Published in 2018 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-018-00772-2
Abstract: The crushing degree of caved ore-rock is one of the key factors influencing the success of block caving mines. The secondary rock failure in granular media is a major link which influences the crushing degree… read more here.
Keywords: rock failure; secondary rock; granular media; failure ... See more keywords
Modelling and simulation of coupled multibody systems and granular media using the non-smooth contact dynamics approach
Sign Up to like & getrecommendations! Published in 2020 at "Multibody System Dynamics"
DOI: 10.1007/s11044-019-09721-0
Abstract: Multibody models are often coupled with other domains in order to enlarge the scope of computer-based analysis. In particular, modeling multibody systems (MBSs) in interaction with granular media is of great interest for industrial process… read more here.
Keywords: multibody systems; non smooth; multibody; granular media ... See more keywords
3D FEM-DEM coupling analysis for granular-media-based thin-wall elbow tube push-bending process
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Material Forming"
DOI: 10.1007/s12289-019-01473-8
Abstract: The granular-media-based thin-wall elbow push-bending process involves filling a tube with granular media and pushing the tube into a die to bend a tubular blank into an elbow shape. By means of the mechanical characteristics… read more here.
Keywords: wall elbow; elbow; thin wall; granular media ... See more keywords
Visualization of shocks in granular media
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Visualization"
DOI: 10.1007/s12650-019-00558-5
Abstract: Granular flows exhibit interesting behavior as a result of complex interaction between the granular particles. This work visualizes the shock front resulting from granular flow over three cylindrical bodies having different cross-sectional shapes: circular, triangular… read more here.
Keywords: visualization shocks; shocks granular; granular media; shock ... See more keywords
Multiscale modeling of continuous crushing of granular media: the role of grain microstructure
Sign Up to like & getrecommendations! Published in 2020 at "Computational particle mechanics"
DOI: 10.1007/s40571-020-00355-0
Abstract: Natural granular materials such as sands often possess complex microstructural features including cleavage and minerals interfaces. Those features bring apparent mechanical anisotropy to particles and are known to have pronounced influence on particle crushing characteristics.… read more here.
Keywords: continuous crushing; crushing granular; particle; multiscale modeling ... See more keywords
Euler–Lagrange framework for deformation of granular media coupled with the ambient fluid flow
Sign Up to like & getrecommendations! Published in 2021 at "Applied Ocean Research"
DOI: 10.1016/j.apor.2021.102857
Abstract: Abstract A full-scale continuum framework for modeling fluid interaction with granular media is computationally exhaustive due to the diverse range of length and time scales. Given the nature of these processes, the computational burden aggravates… read more here.
Keywords: lagrange framework; framework; fluid; granular media ... See more keywords
The relationship between contact-based and void-based fabrics of granular media
Sign Up to like & getrecommendations! Published in 2020 at "Computers and Geotechnics"
DOI: 10.1016/j.compgeo.2020.103677
Abstract: Abstract Fabrics of granular media play an important role in understanding sophisticated soil behaviors and developing constitutive models. In this study, the evolution of fabric anisotropy in terms of both contact normals and local void… read more here.
Keywords: void based; contact based; based fabric; granular media ... See more keywords