Sand Behavior upon Alternating Triaxial Compression and Extension: A Multiscale Analysis Using LS-DEM
Abstract This study investigates the underlying mechanisms causing necking instability in granular materials. Using a digital twin created with the level-set discrete element method (LS-DEM), we simulate triaxial compression and extension cycles on a Hostun sand specimen within an x-ray tomograph. The simulation accurately replicates experimental observations, including stress-strain behavior, deviatoric strain field evolution, and necking initiation and progression during triaxial extension.
Authors
- Konstantinos Karapiperis (ORCID: https://orcid.org/0000-0002-6796-8900)
- Edward Andò (ORCID: https://orcid.org/0000-0001-5509-5287)
- Jifei Cui (ORCID: https://orcid.org/0000-0002-3575-1854)
- José E. Andrade (ORCID: https://orcid.org/0000-0003-3741-0364)
- Øyvind Torgersrud
- Gioacchino Viggiani (ORCID: https://orcid.org/0000-0002-2609-6077)
Institutions
- Institut polytechnique de Grenoble (FR)
- California Institute of Technology (US)
- Norwegian Geotechnical Institute (NO)
- Centre National de la Recherche Scientifique (FR)
- École Polytechnique Fédérale de Lausanne (CH)
- Columbia University (US)
- Université Grenoble Alpes (FR)
Publication Details
- Journal
- IOP Conference Series Earth and Environmental Science
- Published
- 2025-04-01
- DOI
- https://doi.org/10.1088/1755-1315/1480/1/012028
- Primary Topic
- Geotechnical Engineering and Soil Mechanics
- Type
- article
- Field-Weighted Citation Impact
- 0.00