GRANULAR MECHANICS

"Combined 4D experimental grain-scale characterisation of grain-strains, force transfer and kinematics in natural granular material (sand) under load"

 Coordinatore LUNDS UNIVERSITET 

 Organization address address: Paradisgatan 5c
city: LUND
postcode: 22100

contact info
Titolo: Prof.
Nome: Matti
Cognome: Ristinmaa
Email: send email
Telefono: 46462227987

 Nazionalità Coordinatore Sweden [SE]
 Totale costo 100˙000 €
 EC contributo 100˙000 €
 Programma FP7-PEOPLE
Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call FP7-PEOPLE-2012-CIG
 Funding Scheme MC-CIG
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-09-01   -   2016-08-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    LUNDS UNIVERSITET

 Organization address address: Paradisgatan 5c
city: LUND
postcode: 22100

contact info
Titolo: Prof.
Nome: Matti
Cognome: Ristinmaa
Email: send email
Telefono: 46462227987

SE (LUND) coordinator 100˙000.00

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

mechanics    terrestrial    structural    sand    implications    materials    landing    mechanical    granular    contacting    stress    interactions    particle    behaviours   

 Obiettivo del progetto (Objective)

'Granular materials, such as sand, are complex systems in which relatively simple building blocks (i.e., contacting particles - sand grains) behave and interact collectively and in complicated ways. These interactions produce structural evolution over a range of different spatial and temporal scales from contacting-particle interactions to intermediate (meso-) scale communication and structure formation (e.g., localised deformation such as shear bands) to longer-range pattern formation. These kinematic effects are associated with the build-up of stress and possible relaxation via structural reorganisation and particle damage. Furthermore, such particulate masses are frictional and their behaviours are dependent on the mean stress, therefore the same material can exhibit a range of mechanical behaviours, depending on the conditions, from being similar to fluids to behaving more like solids (although never being exactly either). Accurate simulation of the mechanical behaviour of granular systems is thus non-trivial and remains an open challenge. Whilst there is much theoretical and numerical research into improving these simulations, there is significantly less research into the mechanical characterisation and quantification of the micro-scale mechanics, which is necessary to support the ever-more sophisticated modelling. This research tackles the experimental challenge and, in particular, the quest for one of the holy grails of granular mechanics, namely the combined measurement of the kinematics and force transmission in real 3D materials during loading. The research has implications in terrestrial geomechanical/geotechnical engineering challenges, e.g., in optimising foundations or tunnels to mitigate risks of structural failure. There are also extra-terrestrial implications relating to the need to know/predict the mechanical behaviour of soils at lunar/Martian landing sites so as to reduce the risk of very costly landing failures.'

Altri progetti dello stesso programma (FP7-PEOPLE)

TAPIR (2012)

Transport Properties of Ion-Beam Shaped Metallic Nanowires in Vertical Geometry

Read More  

ACT (2007)

Testing fundamental physics with the Atacama Cosmology Telescope

Read More  

ANDEMIC (2010)

Unraveling key abiotic and biotic interactions for sustainable anaerobic biotransformation of chlorinated solvents in groundwater

Read More