Results 91 to 100 of about 2,306 (215)

Mechanical Properties of Dust, Pebbles, and Planetesimals Based on Johnson–Kendall–Roberts, Griffith, and Weibull Theories

The Astrophysical Journal
Mechanical properties of small bodies such as dust, pebbles, and planetesimals are key to better understanding the formation of planetary systems against their collisional destruction.
Hiroshi Kimura, Takaya Okamoto, Takayuki Hirai, Fumi Yoshida, Peng K. Hong, Koji Wada, Tomoko Arai, Eiichiro Kokubo, Yuki Yoshida, Toshihiko Kadono, Sota Arakawa, Hiroki Senshu, Masanori Kobayashi, Ko Ishibashi, Manabu Yamada, Hiroshi Akitaya, Osamu Okudaira, Takafumi Matsui   +17 more
doaj   +1 more source

Numerical Simulation and Modeling of Mechano–Electro–Thermal Behavior of Electrical Contact Using COMSOL Multiphysics

Applied Sciences
Electrical contacts are important circuit components with diverse industrial applications, and their failure can lead to multiple unwanted effects. Hence, the behavior of electrical contacts is a widely studied topic in the scientific literature based on
Andrei Andras, Florin Dumitru Popescu, Sorin Mihai Radu, Dragos Pasculescu, Ildiko Brinas, Mirela Ancuta Radu, Daniela (Furdui) Peagu   +6 more
doaj   +1 more source

Contact force models for multibody dynamics

, 2016
This book analyzes several compliant contact force models within the context of multibody dynamics, while also revisiting the main issues associated with fundamental contact mechanics.
Flores, Paulo, Lankarani, Hamid M, Lankarani, Hamid M.   +2 more
core   +1 more source

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

Advanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann, Ryan Kalgreen, Laura M. Comella   +2 more
wiley   +1 more source

Improving the contact resistance at low force using gold coated carbon nanotube surfaces [PDF]

, 2010
Investigations to determine the electrical contact performance under repeated cycles at low force conditions for carbon-nanotube (CNT) coated surfaces were performed. The surfaces under investigation consisted of multi-walled CNT synthesized on a silicon
S. M. Spearing, Spearing, S. M., Yunus, E.M., J. W. McBride, Yunus, E. M., Spearing, S.M., Mcbride, J. W., E. M. Yunus, McBride, J.W.   +8 more
core   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

A Novel Contact Stiffness Model for Grinding Joint Surface Based on the Generalized Ubiquitiformal Sierpinski Carpet Theory

Fractal and Fractional
A novel analytical model based on the generalized ubiquitiformal Sierpinski carpet is proposed which can more accurately obtain the normal contact stiffness of the grinding joint surface.
Qi An, Yue Liu, Min Huang, Shuangfu Suo
doaj   +1 more source

Simulation Model and Ultrasound Study for Engineering Interfaces [PDF]

, 2012
Friction and wear are experienced both in terms of machine operation and finance. They impact, amongst other things, energy consumption and material loss, product manufacture and component maintenance.
Zhu, Juanjuan
core  

Superconfinement tailors fluid flow at microscales.

, 2015
Understanding fluid dynamics under extreme confinement, where device and intrinsic fluid length scales become comparable, is essential to successfully develop the coming generations of fluidic devices.
Aarts, Dirk G., Pagonabarraga, Ignacio, Setu, Siti A., Hernández-Machado, A, Ledesma-Aguilar, Rodrigo, Setu, Siti Aminah, Aarts, Dirk, Hernández-Machado, Aurora, Dullens, Roel P.A., Ledesma-Aguilar, R, Pagonabarraga, I, Dullens, Roel, Dullens, Roel P. A., Setu, SA, Dullens, RPA, Aarts, DG, Aarts, Dirk G. A. L.   +16 more
core   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source