Results 111 to 120 of about 162,822 (295)

Static and dynamic friction coefficients in DEM simulations of viscoelastic particles

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science
Whereas the elastic Hertzian contact force with nonlinear damping gives rise to the overlap dynamics in the discrete element method, the precise physical meaning of tangential springs representing solid friction has remained obscure. Moreover, the well-known difference between the static and the sliding friction coefficient has often been ignored.
Dietrich E. Wolf   +2 more
openaire   +3 more sources

The Cuttlebone Blueprint for Multifunctional Metamaterials: Design Taxonomy, Functional Decoupling, and Future Horizons

open access: yesAdvanced Functional Materials, EarlyView.
Cuttlebone‐inspired metamaterials exploit a septum‐wall architecture to achieve excellent mechanical and functional properties. This review classifies existing designs into direct biomimetic, honeycomb‐type, and strut‐type architectures, summarizes governing design principles, and presents a decoupled design framework for interpreting multiphysical ...
Xinwei Li, Zhendong Li
wiley   +1 more source

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

open access: yesAdvanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu   +18 more
wiley   +1 more source

Transformative Bioactive Wear Resistant Ti3Au:N and Ti3Au:O Coatings for Medical Implants and Devices

open access: yesAdvanced Healthcare Materials, EarlyView.
Coatings of titanium‐gold are grown in nitrogen and oxygen environments via magnetron sputtering to simultaneously enhance their biotribological and antibacterial properties. The coatings are highly crystalline with superhard scratch‐resistant surfaces and wear rates 20 times lower than the bare Ti‐6Al‐4V substrate.
Cecil Cherian Lukose   +11 more
wiley   +1 more source

Dynamic Effects of the Underground Squat Silo during Symmetic Discharging with Different Static Friction Coefficients

open access: yesLiang you shipin ke-ji
Underground squat silos can utilize shallow geothermal energy to realize natural quasi-low temperature storage to ensure the grain quality, which is a suitable warehouse for green grain storage. A combined approach of numerical simulation and theoretical
JIN Li-bing   +4 more
doaj   +1 more source

Wheat Mill Stream Properties for Discrete Element Method Modeling [PDF]

open access: yes, 2014
A discrete phase approach based on individual wheat kernel characteristics is needed to overcome the limitations of previous statistical models and accurately predict the milling behavior of wheat.
Ambrose, R. P. Kingsly   +3 more
core  

Vickers Hardness Mechanical Models and Thermoplastic Polymer Injection-Molded Products’ Static Friction Coefficients

open access: yesJournal of Manufacturing and Materials Processing
The surface mechanical properties of thermoplastics are crucially important for evaluating molded products’ vulnerability to scratching. Because surface mechanical properties reflect material performance directly in terms of durability and frictional ...
Tetsuo Takayama
semanticscholar   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman   +12 more
wiley   +1 more source

Evaluating the Applicability of the Fokker-Planck Equation in Polymer Translocation: A Brownian Dynamics Study

open access: yes, 2014
Brownian dynamics (BD) simulations are used to study the translocation dynamics of a coarse-grained polymer through a cylindrical nanopore. We consider the case of short polymers, with a polymer length, N, in the range N=21-61.
Alberts B.   +5 more
core   +1 more source

On two contact problems for a half-plane with static friction

open access: yesJournal of Physics: Conference Series
Exact solutions of two contact problems are constructed for a half-plane, when a finite number of absolutely rigid flat punches with friction are pressed into the half-plane under the influence of different concentrated loads, and when a periodic system ...
V. Hakobyan, L. Hakobyan, L. Dashtoyan
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy