Probing the boundary effect in granular piles

Probing the boundary effect in granular piles We present in this paper a DEM study of the effect of boundary configuration on the formation of granular piles. We examine the macro and micro responses of granular piles formed in a two-wall boundary system consisting of a horizontal base and an inclined wall. The results show that the left inclined boundary wall does not exert a considerable impact on the angle of repose $$\alpha _{R}$$ α R estimated by the right free surface of granular pile, but it has an obvious effect on the angle of repose $$\alpha _{L}$$ α L obtained by the left free surface. We observe the shifting of pile apex to the left inclined wall, with the shift distance depending on the orientation angle $$\beta $$ β of inclined wall. The principal stress field of granular pile is characterized by two sub regions, in which the major principal stresses are oriented respectively in acute and obtuse angles relative to the horizontal axis. We propose an index $$\lambda $$ λ relating to the distribution of the two sub regions of principal stress field, and identify a relationship between $$\lambda $$ λ  ( $$=\,\sin \beta $$ = sin β ) and $$\beta $$ β to account for the effect of boundary configuration on the internal mechanical responses of granular pile. We also analyze the boundary responses at varying $$\beta $$ β values, and observe three modes for the friction mobilization along the inclined boundary wall, on the basis of which we preliminarily illuminate the effect of boundary configuration on the macro responses of granular piles. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Granular Matter Springer Journals

Probing the boundary effect in granular piles

Loading next page...
 
/lp/springer_journal/probing-the-boundary-effect-in-granular-piles-OSr7utNUM0
Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Physics; Soft and Granular Matter, Complex Fluids and Microfluidics; Engineering Fluid Dynamics; Materials Science, general; Geoengineering, Foundations, Hydraulics; Industrial Chemistry/Chemical Engineering; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
1434-5021
eISSN
1434-7636
D.O.I.
10.1007/s10035-017-0775-9
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial