Interplay of edge fracture and shear banding in complex fluids
نویسندگان
چکیده
منابع مشابه
Phenomenology and physical origin of shear-localization and shear-banding in complex fluids
We review and compare the phenomenological aspects and physical origin of shear-localization and shear-banding in various material types, namely emulsions, suspensions, colloids, granular materials and micellar systems. It appears that shear-banding, which must be distinguished from the simple effect of coexisting static-flowing regions in yield stress fluids, occurs in the form of a progressiv...
متن کاملTransient shear banding in time-dependent fluids.
We study the dynamics of shear-band formation and evolution using a simple rheological model. The description couples the local structure and viscosity to the applied shear stress. We consider in detail the Couette geometry, where the model is solved iteratively with the Navier-Stokes equation to obtain the time evolution of the local velocity and viscosity fields. It is found that the underlyi...
متن کاملCriteria for shear banding in time-dependent flows of complex fluids.
We study theoretically the onset of shear banding in the three most common time-dependent rheological protocols: step stress, finite strain ramp (a limit of which gives a step strain), and shear startup. By means of a linear stability analysis we provide a fluid-universal criterion for the onset of banding for each protocol, which depends only on the shape of the experimentally measured time-de...
متن کاملRecent Developments in Shear and Extensional Microrheometry of Complex Fluids
We review the design and construction of several new microrheometers designed to facilitate the study of non-Newtonian fluids using very small sample volumes (1-10 μl) and on length scales of micrometer dimensions. These devices enable both the steady shear and transient extensional rheological properties of complex fluids to be measured. The shear-rate-dependent viscosity and gap-dependent yie...
متن کاملInterplay between elastic instabilities and shear-banding: Three categories of Taylor-Couette flows and beyond
M.A. Fardin, 2, 3 T.J. Ober, V. Grenard, T. Divoux, S. Manneville, 5 G.H. McKinley, and S. Lerouge 3, ∗ Laboratoire Matière et Systèmes Complexes, CNRS UMR 7057 Université Paris Diderot, 10 rue Alice Domont et Léonie Duquet, 75205 Paris Cédex 13, France Department of Mechanical Engineering Massachusetts Institute of Technology, 77 Massachusetts Avenue, MA 02139-4307 Cambridge, USA The Academy o...
متن کاملذخیره 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 Rheology
سال: 2020
ISSN: 0148-6055,1520-8516
DOI: 10.1122/8.0000086