The 13th edition of the GéoMécanique newsletter is brought to you by Chao Yuan. It contains the latest news regarding research publications, conference visits and other activities of the staff and students from the GéoMécanique group of Laboratoire 3SR (Sols, Solides, Structures – Risques). If you have something you want to share, please don’t hesitate to contact us at: firstname.lastname@example.org. Please feel free to forward the letter to colleagues and friends, and let them know that they can subscribe by themselves here. Enjoy.
The paper “Role of blockages in particle transport through homogeneous granular assemblies” by Ignacio G. Tejada, Luc Sibille and Bruno Chareyre as been recently accepted in Europhysics Letters (EPL), it follows, namely, the postdoc of Ignacio supported by the Labex TEC21.
Bastien Exertier , from UGA L1 excellence student received a financial support for 1 month training in 3SRLAb, last June 2016. He realized a tazer on the last experiments conducted by a group of IUT students and the badaboom team . It explains the aims of the experiments conducted by Bruna Garcia for her PhD . It has been viewed first by the profs of physic received by 3SR for the annual GePhy meeting in July 2016. It will be presented for the “Science en fete” animation in October 2016. Let’ see and translate it in your mother language ! Video link
The Auvergne Rhone Alpes Region founded the IGLAS program for a collaboration on co-sismic gravitational movements between IANIGLA and UNCU of MEndoza (Argentina) and 3SR. Stella Moreiras will be again in the lab in November 2016 with her PhD student. The program is for 2 years, and everyone who like to work can apply to a funding by ARA region “cmira” for 3 to 6 months mobility in Mendoza to this research ; Please contact Dominique Daudon if interested.
Visits and conferences
Prof . Claudio Tamagnini, from University of Perugia in Italy, came to 3SR for three months from July to September 2016, in the frame of the Tec21’s long duration visitor fellowship. He supervises, in cotuelle with Université Grenoble Alpes, the PhD thesis of Carlos Pluà, on the development of a numerical strategy for enriched 2nd gradient continuum based on Iso-Geometric analysis finite element, applied to double scale model for partially saturated material.
Rodaina Aboul Hosn and Luc Sibille attended the 8th International Conference on Scour and Erosion (ICSE) last September in Oxford (UK). They were involved in the following presentations:
- “A Discrete Numerical Description of The Mechanical Response of Soils Subjected to Suffusion” by R. Aboul Hosn, L. Sibille, N. Benahmed (from IRSTEA), B. Chareyre
- “Numerical modeling of particle migration in granular soils” by I. G. Tejada (previously postdoc in 3SR/Labex TEC21, now in Technical University of Madrid), L. Sibille, B. Chareyre, E. Vincens (from Ecole Centrale Lyon)
- “Phenomenological interpretation of internal erosion in granular soils from a discrete fluid-solid numerical model” by L. Sibille, D. Marot & P. Poullain (both from Nantes University), F. Lominé (from INSA Rennes)
- “A possible characterization of suffusion susceptibility independent of the hydraulic loading history?” by A. Rochim, D. Marot, L. Sibille, V.T. Le (with our colleagues from Nantes University).
Jelke Dijkstra from Chalmers University of Technology (Sweden) started his short-term visiting scientist say in 3SR (thanks to the support from TEC21), to prepare to study creep with x-ray tomography both in 3SR and at the ESRF.
Alberto Giacomello from the University of Rome (La Sapienza) expert in microfluidics and MD simulations of water, came to visit Edward Andò and Bruno Chareyre, resulting in the submission of a proposal regarding “Film Flow in Granular systems” to the upcoming D50 neutron imaging instrument.
A word on DEM7 by Félix Darve:
“Congress DEM7 (the 7th International Conference on Discrete Element Methods) was held in Dalian ( China) during the first week of august 2016 with around 250 participants from 22 countries.
The three organisers were Profs Xikui Li ( Dalian Univ., China), Yuntian Feng ( Swansea Univ., U.K.) and Graham Mustoe ( Colorado Univ., U.S.A.). Three plenary lectures have been delivered successively by Felix Darve, Stefan Luding ( Twente Univ., Netherlands) and Xiaojing Zheng ( Xidian Univ., China). The title of my lecture was “DEM modelling in geomechanics, some recent breakthroughs”. The proceedings with extended papers will be published by “Springer Proceedings Phys.” in vol. 188 probably soon. The climate was not too hot, since Dalian is along the sea: people in shirts and shorts exactly as in Grenoble – even the writings on the shirts were all in english! Fortunately the refined chinese way of cooking is still making the difference … So convinced (!) that I am coming back in China (Tianjin Univ.) for one week at the end of October… “
M. Ritesh GUPTA, formerly student in the GERS Master, will start a PhD on November, 1st, under the supervision of C. Dano. The topic is the behaviour of piles subjected to combined (axial / lateral) cyclic loading. The PhD will be funded through the AGIR program.
Ms. Imane SALAMA will start her PhD on “Ageing of geomaterials adjacent to foundation elements”, under the supervision of C. Dano (UGA, 3SR) and J. Dijkstra (Chalmers University of Technology, Sweden). The project is co-funded by Grenoble INP and Chalmers University of Technology.
Cyrille Couture started his PhD in the team from 1st October. The title of the PhD is “characterisation and modelling of the mechanical behaviour of porous rocks in true triaxial conditions: diffuse and localised deformation. He will be supervised by Pierre Bésuelle, Jacques Desrues and Stefano Dal Pont.