Results 71 to 80 of about 158,333 (341)

Unjamming of Granular Packings due to Local Perturbations: Stability and Decay of Displacements

, 2007
We study the mechanical response generated by local deformations in jammed packings of rigid disks. Based on discrete element simulations we determine the critical force of the local perturbation that is needed to break the mechanical equilibrium and ...
E. Kolb, János Kertész, L. Brendel, M. Reza Shaebani, Tamás Unger   +4 more
core   +1 more source

Stretching the Printability Metric in Direct‐Ink Writing with Highly Extensible Yield‐Stress Fluids

Advanced Functional Materials, EarlyView.
This study introduces “drawability” as a new metric for assessing printability in direct‐ink writing, focusing on gap‐spanning performance and speed robustness. By designing yield‐stress fluids with high extensibility, we demonstrate that extensional strain‐to‐break significantly enhances printability.
Chaimongkol Saengow, Samya Sen, Joaquin Yus, Eliza E. Lovrich, Amanda G. Hoika, Kelly M. Chang, Arielle A. Pfeil, Nellie Haug, Amy J. Wagoner Johnson, Randy H. Ewoldt   +9 more
wiley   +1 more source

Development and validation of an integrated mechatronic apparatus for measurement of friction coefficients of agricultural products

Information Processing in Agriculture, 2020
An integrated mechatronic apparatus was developed based on tilting plate method in order to precisely measure static friction coefficient (SFC) and dynamic friction coefficient (DFC) of agricultural products.
S.M. Shafaei, A. Nourmohamadi-Moghadami, S. Kamgar, M. Eghtesad   +3 more
doaj   +1 more source

Asymmetric and chaotic responses of dry friction oscillators with different static and kinetic coefficients of friction [PDF]

, 2021
Gábor Csernák, Gábor Licskó
openalex   +1 more source

The Role of Solid Friction in the Sedimentation of Strongly Attractive Colloidal Gels

, 2006
We study experimentally and theoretically the sedimentation of gels made of strongly aggregated colloidal particles, focussing on the long time behavior, when mechanical equilibrium is asymptotically reached.
Christian Ligoure, Dowson D, Evans R M L, Janssen H A, Jean-Michel Condre, Larson R G, Lin M Y, Luca Cipelletti, Parker A, Poon W C K, Starrs L   +10 more
core   +3 more sources

2D granular flows with the $\mu(I)$ rheology and side walls friction: a well balanced multilayer discretization [PDF]

, 2017
We present here numerical modelling of granular flows with the $\mu(I)$ rheology in confined channels. The contribution is twofold: (i) a model to approximate the Navier-Stokes equations with the $\mu(I)$ rheology through an asymptotic analysis.
Fernández-Nieto, E. D., Garres-Díaz, J., Mangeney, A., Narbona-Reina, G.   +3 more
core   +4 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

Advanced Functional Materials, EarlyView.
An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi, Sumukh Shankar Sharadaprasad, Rochus Schmid   +2 more
wiley   +1 more source

On dense granular flows [PDF]

, 2003
The behaviour of dense assemblies of dry grains submitted to continuous shear deformation has been the subject of many experiments and discrete particle simulations.
Aharonov, Ancey, Andreotti, Babic, Baxter, Bertho, Bertho, Berton, Bocquet, Boltenhagen, Bonamy, Bonamy, Campbell, Chambon, Cruz, Daerr, Debregeas, Debregeas, Denniston, Dury, Elperin, Ertas, Evesque, Falk, Fenistein, Forterre, Gennes, Goldhirsch, Goujon, Grasselli, Hanes, Howell, Hutter, Johnson, Kabla, Khakhar, Khakhar, Komatsu, Kuhn, Liu, Lätzel, Menon, Miller, Mills, Nakagawa, Nasuno, Natarajan, Nedderman, Orpe, Pont, Pont, Pouliquen, Pouliquen, Pouliquen, Pouliquen, Radjai, Rajchenbach, Rajchenbach, Rajchenbach, Roux, Savage, Schwarz, Schöllmann, Silbert, Silbert, Taberlet, Tardos, Thomas, Thompson, Tüzün, Veje, Volfson, Yamane, Zhang, Zhou, Zhou   +75 more
core   +3 more sources

Shape‐Controlled Guanine Self‐Assemblies for Stable and Fast‐Ion Solid–Electrolyte Interphases in Sustainable Li Metal Batteries

Advanced Functional Materials, EarlyView.
The shape of guanine self‐assemblies is tuned by introducing alkyl (G8), fluoroalkyl (G8f), and oligoether (G8g) side chains into the G moiety. The scanning tunneling microscopy results and calculations show that the presence and type of the side chain strongly affect the G self‐assembly network.
So‐Huei Kang, So‐Dam Sohn, Kyung Min Lee, Seok‐Kyu Cho, Byongkyu Lee, Ji Eun Lee, Sang‐Young Lee, Sang Kyu Kwak, Hyung‐Joon Shin, Changduk Yang   +9 more
wiley   +1 more source