Results 61 to 70 of about 115,932 (276)

On the Origin of Frictional Adhesion in Geckos: Small Morphological Changes Lead to a Major Biomechanical Transition in the Genus \u3cem\u3eGonatodes\u3c/em\u3e [PDF]

, 2017
The evolutionary history of vertebrate locomotion is punctuated by innovations that have permitted expansion into novel ecological niches. Frictional adhesion of geckos is an innovation renowned for enabling locomotion on vertical and inverted smooth ...
Gamble, Tony, Higham, Timothy E., Russell, Anthony P.   +2 more
core   +1 more source

3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response

Advanced Engineering Materials, EarlyView.
A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley   +1 more source

Influence of frozen capillary waves on contact mechanics

, 2005
Free surfaces of liquids exhibit thermally excited (capillary) surface waves. We show that the surface roughness which results from capillary waves when a glassy material is cooled below the glass transition temperature can have a large influence on the ...
Persson, B. N. J.
core   +1 more source

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

Crack-Like Processes Governing the Onset of Frictional Slip

, 2006
We perform real-time measurements of the net contact area between two blocks of like material at the onset of frictional slip. We show that the process of interface detachment, which immediately precedes the inception of frictional sliding, is governed ...
A Cochard, A Needleman, AE Filippov, AJ Rosakis, AJ Rosakis, AT Linde, BJ Briscoe, CH Scholz, CJ Ammon, D Coker, D Coker, DJ Andrews, DJ Andrews, FF Abraham, G Rogers, Gil Cohen, HJ Gao, JA Greenwood, Jay Fineberg, JF Archard, JH Dieterich, JR Rice, K Ravi-Chandar, KW Xia, L Crescentini, L Kogut, L Kogut, LB Freund, M Bouchon, M Ohnaka, M Urbakh, Meni Shay, MH Muser, N Lapusta, R Bilham, R Buczkowski, S Bouissou, S Ciliberto, Shmuel M. Rubinstein, SM Rubinstein, T Baumberger, T Lay, TH Heaton, Y Ben-Zion, Y Ben-Zion   +44 more
core   +1 more source

Contact mechanics for randomly rough surfaces [PDF]

, 2006
When two solids are squeezed together they will in general not make atomic contact everywhere within the nominal (or apparent) contact area. This fact has huge practical implications and must be considered in many technological applications.
Archard, Arzt, B.N.J. Persson, Barquins, Bollinne, Borri-Brunetto, Borri-Brunetto, Bureau, Bureau, Bush, Bush, Buzza, Carbone, Carbone, Derjaguin, Derjaguin, Fuller, Gao, Gibson, Greenwood, Greenwood, Greenwood, Hertz, Hui, Hyun, Israelachvili, Johnson, Johnson, Jäckle, Laguarta, Luan, Mecke, Nayak, Ocko, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Persson, Restagno, Seydel, Sherge, Tabor, Vorvolakos, Yang, Zhang   +51 more
core   +3 more sources

A Bespoke Programmable Interpenetrating Elastomer Network Composite Laryngeal Stent for Expedited Paediatric Laryngotracheal Reconstruction

Advanced Functional Materials, EarlyView.
A programmable interpenetrating double‐network architecture, created via 3D‐TIPS printing and resin infusion, synergistically combines thermoplastic and thermosetting elastomers to balance structural rigidity and surface softness—crucial for paediatric laryngeal stents.
Elizabeth F. Maughan, Lei Wu, Dong Zhang, Linxiao Wu, Graca Ferreira Vaz Pinto Mendes, Wanqiao J. Tu, Heping Ma, Toby J. Proctor, Colin R. Butler, Thomas Kjærgaard, Mark W. Lowdell, Martin A. Birchall, Robert E. Hynds, Richard Hewitt, Wenhui Song   +14 more
wiley   +1 more source

Analysis of a Dynamic Viscoelastic Contact Problem with Normal Compliance, Normal Damped Response, and Nonmonotone Slip Rate Dependent Friction

Advances in Mathematical Physics, 2016
We consider a mathematical model which describes the dynamic evolution of a viscoelastic body in frictional contact with an obstacle. The contact is modelled with a combination of a normal compliance and a normal damped response law associated with a ...
Mikaël Barboteu, David Danan
doaj   +1 more source

Experimental Evaluation of Brake Pad Material Propensity to Stick-Slip and Groan Noise Emission

Lubricants, 2018
Frictional and dynamic responses of brake pad materials, when sliding on brake disc counterfaces, are at the origin of noise, vibration and harshness (NVH) issues such as brake noise emissions.
Alessandro Lazzari, Davide Tonazzi, Giovanni Conidi, Cristian Malmassari, Andrea Cerutti, Francesco Massi   +5 more
doaj   +1 more source

EMERGENCE OF CONTACT FILMS DURING FRICTION. GEOTRIBOLOGICAL FILMS [PDF]

Proceedings on Engineering Sciences, 2019
Focusing on frictional surfaces contact interaction study, tribology comprises, beside the wellknown friction/wear problems, the research on the genesis, characteristics and functioning of the films formed by the interacting materials in the contact zone.
Emilia ASSENOVA, Evgenia KOZHOUKHAROVA
doaj   +1 more source