Azéma Emilien

#International Une délégation d’étudiants de l’UESTC (Chengdu) est à l’UM du 2 au 7 février pour une Winter School en mathématiques et ingénierie organisée par la @FacsciencesUM. L’événement, inauguré par @f_r_pierrot, souligne la vitalité des liens entre nos 2 universités

Using 3D contact dynamics simulations, this study investigates the macroscopic flow behavior, microstructure, and non-local rheology of highly non-convex particles on an inclined plane. Read the paper: go.aps.org/49d6SV0

PRE : journals.aps.org/pre/abstract/1… PRL : journals.aps.org/prl/abstract/1…

The project started at the @lorentzcenter “Getting into Shape” workshop, showing how discussions spark ideas → experiments → results

Excited to share that our work has just been published in two companion papers in PRL & PRE! 🎉 We provide the first experimental proof of the stress–force–fabric relation, connecting particle-scale anisotropies in sheared granular materials to bulk properties (stress & friction)

C’est un plaisir immense de remettre ce soir le diplôme de doctorat à 230 jeunes docteurs parmi le plus de 520 diplômés de la promotion 2024 du collège doctoral de l’@umontpellier @AgroParisTech @IMTMinesAles @InstitutAgroMtp ! Bravo à nos ambassadeurs !

Fabulous collaboration with @NEstradaMejia (@inguniandes) @c_abrer_a and Mathieu Renouf @umontpellier @LmgcMontpellier

Just out: the final piece of @SantiagoPolana's PhD 👇 We show that polydisperse granular flows collapse onto monodisperse behavior — if you pick the right length scale: the average branch length (between contacting grains). Simple. Geometrical. Unifying. journals.aps.org/pre/abstract/1…

Dear friends: Let us share with you our recently published article "Experimental exploration of geometric cohesion and solid fraction in columns of highly non-convex Platonic polypods" :) (link.springer.com/article/10.100…).

Aujourd'hui, nous avons eu l'honneur d'organiser la remise de diplômes du  Master et Licence Mecanique promotion 2023-2024 Nous sommes fiers de vous et vous êtes maintenant les ambassadrices et ambassadeurs de notre Fac et de notre Université.  @umontpellier @IAE_Montpellier

The results challenge traditional granular material models, showing that certain geometries can maintain stability even in loose states. @umontpellier @InstUnivFr @Uniandes

We dive into how Platonic polypods—particles with arms extruded from Platonic solids—can achieve solid-like behavior (geometric cohesion) even without adhesive forces.

🚀 New research alert! Experimental exploration of geometric cohesion and solid fraction in columns of highly non-convex Platonic polypods 🧩 link.springer.com/article/10.100…

This work has applications in soil mechanics, railway ballast, and even space regolith, where angular grains and attractive forces dominate. Huge thanks to Pr. Peerapong Jitsangiam (Chiang Mai University) and funding from 🇫🇷 French Embassy in Thailand.

We show that macroscopic cohesion increases with angularity and extend the “Rumpf-like” equation to include microscopic factors like contact anisotropy, grain shape, and packing structure.

😎Excited to share our latest research in Phys. Rev. E! Our paper explores how grain angularity affects cohesion in granular packings. journals.aps.org/pre/abstract/1…

Steady granular flow in a rotating drum: A theoretical nonlocal model for characterizing stress, velocity, and packing fraction profiles, encompassing grain shape effects from convex to highly concave, Weiyi Wang et al #GranularPhysics #SoftMatter go.aps.org/3DDCYLW

Thrilled to share our latest research in Phys. Rev. Research! 🚀We present a theoretical model for steady granular flow in a rotating drum, capturing the effects of grain shape (spherical to highly concave).🎉 Bravo to my PhD student Weiyi Wang: link.aps.org/doi/10.1103/Ph…