Results 1 to 10 of about 5,203,929 (306)

Direct numerical simulations of three-dimensional surface instability patterns in thin film-compliant substrate structures [PDF]

open access: yesScientific Reports, 2021
A comprehensive numerical study of three-dimensional surface instability patterns is presented. The formation of wrinkles is a consequence of deformation instability when a thin film, bonded to a compliant substrate, is subject to in-plane compressive ...
Siavash Nikravesh   +2 more
doaj   +2 more sources

INTERFACIAL INSTABILITY ON BUBBLE SURFACE

open access: yesChemical Engineering Transactions, 2009
Not available.
S. Karlov, D. Kazenin, A. Vyazmin
doaj   +2 more sources

Biomechanical analysis of single leg deadlift under the effect of instability [PDF]

open access: yesScientific Reports
The single leg deadlift (SLD), one of resistance exercises, is widely prescribed to enhance muscular strength and balance due to its inherent unstable, unilateral nature.
Jioun Kim, Youngirl Jeon, Kilho Eom
doaj   +2 more sources

Evolution of Thin-Film Wrinkle Patterns on a Soft Substrate: Direct Simulations and the Effects of the Deformation History

open access: yesNanomaterials, 2022
Surface wrinkling instability in thin films attached to a compliant substrate is a well-recognized form of deformation under mechanical loading. The influence of the loading history on the formation of instability patterns has not been studied.
Siavash Nikravesh, Yu-Lin Shen
doaj   +1 more source

Surface Instability in a Nematic Elastomer

open access: yesPhysical Review Letters, 2023
Liquid crystal elastomers (LCEs) are soft phase-changing solids that exhibit large reversible contractions upon heating, Goldstone-like soft modes and resultant microstructural instabilities. We heat a planar LCE slab to isotropic, clamp the lower surface then cool back to nematic.
Morgan Barnes, Fan Feng, John S. Biggins
openaire   +3 more sources

Surface instability of icicles [PDF]

open access: yesPhysical Review E, 2002
Quantitatively-unexplained stationary waves or ridges often encircle icicles. Such waves form when roughly 0.1 mm-thick layers of water flow down the icicle. These waves typically have a wavelength of 1cm approximately independent of external temperature, icicle thickness, and the volumetric rate of water flow.
Ogawa, Naohisa, Furukawa, Yoshinori
openaire   +3 more sources

Surface Instabilities in Cracks [PDF]

open access: yesPhysical Review Letters, 1998
The surface of a propagating crack is shown to be morphologically unstable because of the nonhydrostatic stresses near the surface (Asaro-Tiller-Grinfeld instability). We find that the energy of a wavy crack becomes smaller than the energy of a straight crack if the crack length is a few times larger than the Griffith length.
Brener, E. A., Marchenko, V. I.
openaire   +2 more sources

Bio‐Inspired Instability‐Induced Hierarchical Patterns Having Tunable Anisotropic Wetting Properties

open access: yesAdvanced Materials Interfaces, 2023
This paper introduces a method for the bottom‐up fabrication of bio‐inspired hierarchical patterns having tunable anisotropic wetting properties.
So Nagashima   +3 more
doaj   +1 more source

Self‐Reporting Hydrogel Sensors Based on Surface Instability‐Induced Optical Scattering

open access: yesAdvanced Photonics Research, 2021
Interest regarding the development of hydrogel sensors continues to grow due to the associated high sensitivity, fast response, low fabrication cost, and versatile application when responding to an analyte.
Imri Frenkel   +3 more
doaj   +1 more source

Surface instability in windblown sand [PDF]

open access: yesPhysical Review E, 2000
We investigate the formation of ripples on the surface of windblown sand based on the one-dimensional model of Nishimori and Ouchi [Phys. Rev. Lett. 71, 197 (1993)], which contains the processes of saltation and grain relaxation. We carry out a nonlinear analysis to determine the propagation speed of the restabilized ripple patterns, and the amplitudes
Kurtze, Douglas A.   +2 more
openaire   +3 more sources

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