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Simulating granular column collapse using the Material Point Method
Abstract This paper presents an analysis of sand column collapse phenomena using the Material Point Method and a non-associative variant of the Matsuoka–Nakai constitutive framework, resulting in a simulation environment capable of emulating the mechanical response of a family of granular materials representing typical sands with a wide range of friction and critical state angles. A series of two-dimensional sand column collapse configurations are analyzed, and results evaluated qualitatively in light of outcomes from existing experimental and numerical simulations from the literature. Key geometric relationships are identified linking the final deposit geometry to the initial configuration via the aspect ratio, a. This work shows the internal friction angle influences the final geometry significantly and discusses various aspects of the collapse dynamics. The net deformation, stress, and base contact/reaction forces are examined in detail
Simulating granular column collapse using the Material Point Method
Abstract This paper presents an analysis of sand column collapse phenomena using the Material Point Method and a non-associative variant of the Matsuoka–Nakai constitutive framework, resulting in a simulation environment capable of emulating the mechanical response of a family of granular materials representing typical sands with a wide range of friction and critical state angles. A series of two-dimensional sand column collapse configurations are analyzed, and results evaluated qualitatively in light of outcomes from existing experimental and numerical simulations from the literature. Key geometric relationships are identified linking the final deposit geometry to the initial configuration via the aspect ratio, a. This work shows the internal friction angle influences the final geometry significantly and discusses various aspects of the collapse dynamics. The net deformation, stress, and base contact/reaction forces are examined in detail
Simulating granular column collapse using the Material Point Method
Mast, Carter M. (author) / Arduino, Pedro (author) / Mackenzie-Helnwein, Peter (author) / Miller, Gregory R. (author)
Acta Geotechnica ; 10 ; 101-116
2014-05-06
16 pages
Article (Journal)
Electronic Resource
English
Avalanche , Contact , Granular flow , Large deformation , Material Point Method , Matsuoka–Nakai , Reaction force Engineering , Geoengineering, Foundations, Hydraulics , Continuum Mechanics and Mechanics of Materials , Geotechnical Engineering & Applied Earth Sciences , Soil Science & Conservation , Soft and Granular Matter, Complex Fluids and Microfluidics , Structural Mechanics
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