Results 21 to 30 of about 21,892 (296)

Pressure-driven wrinkling of soft inner-lined tubes

open access: yesNew Journal of Physics, 2022
A simple equation modelling an inextensible elastic lining of an inner-lined tube subject to an imposed pressure difference is derived from a consideration of the idealised elastic properties of the lining and the pressure and soft-substrate forces.
Benjamin Foster   +3 more
doaj   +1 more source

Hydrogen Induced Etching Features of Wrinkled Graphene Domains

open access: yesNanomaterials, 2019
Wrinkles are observed commonly in CVD (chemical vapor deposition)-grown graphene on Cu and hydrogen etching is of significant interest to understand the growth details, as well as a practical tool for fabricating functional graphene nanostructures. Here,
Qiongyu Li   +5 more
doaj   +1 more source

A simplified rate dependent model of forming and wrinkling of pre-impregnated woven composites [PDF]

open access: yes, 2007
A simplified finite element model is developed and validated for the forming/ draping of pre-impregnated woven composites, incorporating the effects of wrinkling and strain rate dependence. The model development builds upon previous work on simulation
Monroy, Aceves C.   +2 more
core   +1 more source

Wrinkling of elastic thin films on compliant substrates [PDF]

open access: yes, 2009
textComplex wrinkle patterns have been observed in various thin film systems, typically with integrated hard and soft materials for various technological applications as well as in nature.
Im, Se Hyuk
core   +1 more source

Collagen Supplements for Aging and Wrinkles: A Paradigm Shift in the Field of Dermatology and Cosmetics

open access: yesDermatology Practical & Conceptual, 2022
Introduction: Slowing the aging process by use of collagen supplements has become a driving force in the field of dermatology and cosmetics. Generally, oral and topical collagen are used in anti-aging products, as reported in the literature. Objectives:
Hend Al-Atif
doaj   +1 more source

Effects of initial imperfection and mesh resolution on wrinkle and crease analyses

open access: yesNihon Kikai Gakkai ronbunshu, 2021
This study investigates the effects of initial imperfection and mesh resolution on the wrinkling and creasing. Finite element analyses are conducted to simulate compression behaviors of an incompressible Neo-Hookean elastic plane with a V-shaped notch as
Ryogo HOSHI   +3 more
doaj   +1 more source

Analysis of Experimental Biaxial Surface Wrinkling Pattern Based on Direct 3D Numerical Simulation

open access: yesMicromachines
This paper presents a direct 3D numerical simulation of biaxial surface wrinkling of thin metal film on a compliant substrate. The selected compliant substrate is a commercial Scotch tape on which a gold metal thin film has been transferred by using low ...
Seonho Seok, HyungDal Park, Jinseok Kim
doaj   +1 more source

Theoretical and Experimental Investigation into Generation of Wrinkling and Slip in Plastic-Films under Transportation

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
In the transport processes of plastic-films, wrinkling is sometimes generated due to misalignment of roller. To avoid the wrinkling, it is effective to reduce the web tension. However, under the low web tension, the traction inevitably falls as transport
Hiromu HASHIMOTO
doaj   +1 more source

Mechanics of Viscoelastic Thin-Walled Structures [PDF]

open access: yes, 2013
Thin-walled structures made of polymers and reinforced polymer composites are prominent candidates for constructing large lightweight structures. A major challenge in designing polymer-based thin-walled structures is their time and temperature dependent ...
Kwok, Kawai
core   +1 more source

Experimental and Numerical Analysis of Wrinkling Behaviors of Inflated Membrane Airship Structures

open access: yesAerospace
In this paper, the wrinkling behavior of an inflated cantilever beam is presented. An analytical solution for the load-bearing capacity of an inflated beam is proposed to predict the ultimate wrinkling force and critical wrinkling force of the inflated ...
Yu Hu, Rongyan Guo, Wujun Chen
doaj   +1 more source

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