Multimodal Surface Instabilities in Curved Film–Substrate Structures

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Multimodal Surface Instabilities in Curved Film–Substrate Structures

Structures of thin films bonded on thick substrates are abundant in biological systems and engineering applications. Mismatch strains due to expansion of the films or shrinkage of the substrates can induce various modes of surface instabilities such as wrinkling, creasing, period doubling, folding, ridging, and delamination. In many cases, the film–substrate structures are not flat but curved. ...

متن کامل

Unsteady free surface wave-induced separation: Vortical structures and instabilities

Vortical structures and instability mechanisms of the unsteady free surface wave-induced separation around a surface-piercing NACA0024 foil at a Froude number of 0.37 and a Reynolds number of 1.52 10 are studied using an unsteady Reynolds-averaged Navier–Stokes (URANS) code with a blended k e/k o turbulence model and a free surface tracking method. At the free surface, the separated flow reatta...

متن کامل

Three dimensional axisymmetric simulations of fluid instabilities in curved geometry

Numerical simulations for Rayleigh-Taylor (RT) and Richtmyer-Meshkov (RM) instabilities for three dimensional axisymmetric fluids have been successfully conducted by a front tracking method. In the first simulation, we consider single mode RT instability for an axially symmetric perturbed interface in a circular tube. We compare the computed bubble velocity with theory and laboratory experiment...

متن کامل

Viscoelastic surface instabilities

We review three different types of viscoelastic surface instabilities: The Rayleigh – Plateau, the Saffman – Taylor and the Faraday instability. These instabilities are classical examples of hydrodynamic surface instabilities. The addition of a small amount of polymers to pure water can alter its flow behavior drastically and the type of instability may change not only quantitatively but also q...

متن کامل

Curved Folded Plate Timber Structures

Current research at the laboratory for timber construction IBOIS at EPFL focuses on shell structures. Two main families are investigated: shells made of linear elements, as timber rib shells, and shells made of surface elements, typically folded plate structures. With regard to timber rib shells, bent linear timber elements are used to create the shape of a shell. With folded plate structures, ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Applied Mechanics

سال: 2017

ISSN: 0021-8936,1528-9036

DOI: 10.1115/1.4036940