mgr inż. Aleksander Grabowski
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- Asystent at Department of Engineering Structures
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- Location
- Al. Zwycięstwa 27, 80-219 Gdańsk
- Phone
- +48 58 348 62 62
- biznes@pg.edu.pl
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Publication showcase
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3D DEM simulations of monotonic interface behaviour between cohesionless sand and rigid wall of different roughness
Artykuł omawia wyniki metodą elementów dyskretnych (DEM) dotyczace zachowania się strefy kontaktu między bezkohezyjnym piaskiem a sztywną scianą o różnej szorstkości. Obliczenia wykonano dla dla różnej wysokości, nachylenia i rozstawu rowków wzdłuż sciany, które symulowały jej szorstkość. W symulacjach zmieniano dodatkowo ciśnienie pionowe i początkowy wskaźnik porowatosci piasku. Nacisk położono na wpływ szorstkości na mobilizowany...
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Shear band evolution phenomena in direct shear test modelled with DEM.
A direct shear test is widely used in the geotechnical engineering field. It is an easy and quick test to measure the shear properties of soil. This test often replaces more expensive and difficult tri-axial shear test. Despite that the direct shear test is known and used for a long time, it is still not well investigated at the grain scale. This paper deals with the micro behaviour of the cohesionless sand inside the direct shear...
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Comparative 3D DEM simulations of sand–structure interfaces with similarly shaped clumps versus spheres with contact moments.
Three-dimensional simulations of a monotonic quasi-static interface behaviour between initially dense cohesionless sand and a rigid wall of different roughness during tests in a parallelly guided direct shear test under constant normal stress are presented. Numerical modelling was carried out by the discrete element method (DEM) using clumps in the form of convex non-symmetric irregularly shaped grains. The clumps had an aspect...
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