One-dimensional model for the transition from periodic to chaotic motions in granular shear flows

Aidanpää, Jan-Olov (author): Luleå tekniska universitet,Material- och solidmekanik

Shen, H.H. (author)

Gupta, R.B. (author)

Babic, M. (author)

(creator_code:org_t)

1993
1993
English.
In: Mechanics of materials. - 0167-6636 .- 1872-7743. ; 16:1-2, s. 153-161

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

A simple one-dimensional mechanical model to simulate some aspects of the dynamics of granular flow is suggested. The model consists of a visco-elastic packet bouncing between two oscillating walls. The motion of the walls is prescribed to be harmonic. The amplitude and frequency of the wall motion are related to the concentration and shear rate, respectively. The dynamics of the system is studied for various parameter combinations and it is shown that periodic as well as chaotic motions are possible for different parameters and initial conditions. Results are presented in the form of time histories, power spectral densities, phase diagrams, Poincare plots and bifurcation diagrams. This simple one-dimensional model presents many features that are analogous to those observed in the two-dimensional simple shear flow of disks.

By the author/editor: Aidanpää, Jan-Ol ...; Shen, H.H.; Gupta, R.B.; Babic, M.

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Mechanical Engin ...; and Applied Mechanic ...

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