English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The triggering of avalanches is investigated using discrete elementsimulations for a process of random extraction of spheres. A monolayer, formedby identical spheres in a hexagonal configuration, is placed on a tilted planesurrounded by a small fence that sustains the spheres, mimicking the disposalof fruits in the market. Then, a random continuous extraction process ofspheres is imposed until the collapse. For this simple numerical experiment, aphase diagram was obtained to visualize the occurrence of avalanches triggeredby vacancies as a function of the tilting angle, system size, and frictioncoefficient. More importantly, a sub-zone was found where we can predict thecritical number of extractions until the avalanche takes place. The predictionis made from an evolution model of the average coordination number based onstatistical considerations. The theoretical prediction also gives a constantcritical void fraction of spheres, which implies the system collapses at acritical packing fraction.

Stability of a tilted granular monolayer: How many spheres can we pick before the collapse?