Discrete element models for understanding the biomechanics of fossorial animals
Sign Up to like & getrecommendations! Published in 2022 at "Ecology and Evolution"
DOI: 10.1002/ece3.9331
Abstract: Abstract The morphological features of fossorial animals have continuously evolved in response to the demands of survival. However, existing methods for animal burrowing mechanics are not capable of addressing the large deformation of substrate. The… read more here.
Keywords: understanding biomechanics; discrete element; fossorial animals; models understanding ... See more keywords
The discrete element method with deformable particles
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DOI: 10.1002/nme.5767
Abstract: An original concept of the discrete element method accounting for deformability of cylindrical or spherical particles proposed in [1] will be presented. The deformability of the particles in the new method, called the deformable discrete… read more here.
Keywords: element method; method; deformation; particle ... See more keywords
A novel discrete element method based on the distance potential for arbitrary 2D convex elements
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DOI: 10.1002/nme.5803
Abstract: A new 2‐dimensional discrete element method, which is able to simulate a system involving a large number of arbitrary convex elements, is proposed. In this approach, a novel distance potential function is defined using a… read more here.
Keywords: element method; distance; method; arbitrary convex ... See more keywords
3D formulation of the deformable discrete element method
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DOI: 10.1002/nme.6666
Abstract: This work presents a 3D extension of the deformable discrete element method (DDEM) developed previously for 2D problems. The 3D formulation employs spherical particles. The particle deformation is made up of a global and local… read more here.
Keywords: deformable discrete; formulation deformable; discrete element; element method ... See more keywords
A Godunov‐type discrete element model for elastic‐viscoplastic continuum impact problems
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DOI: 10.1002/nme.6796
Abstract: The discrete element model (DEM) has attractive advantages in expressing multiple cracks propagation problem in continuum, but the description of material plastic characteristics by current DEM is restricted by the connection model, which is the… read more here.
Keywords: discrete element; continuum; element model; model ... See more keywords
Quasi-static crack propagation with a Griffith criterion using a variational discrete element method
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DOI: 10.1007/s00466-021-02102-5
Abstract: A variational discrete element method is applied to simulate quasi-static crack propagation. Cracks are considered to propagate between the mesh cells through the mesh facets. The elastic behaviour is parametrized by the continuous mechanical parameters… read more here.
Keywords: criterion; quasi static; variational discrete; element method ... See more keywords
Boundary effects in discrete element method modeling of undrained cyclic triaxial and simple shear element tests
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DOI: 10.1007/s10035-018-0832-z
Abstract: Cyclic triaxial and simple shear tests are both commonly used to study the behavior of granular assemblies subjected to dynamic loading. These two stress paths have also been simulated with the discrete element method (DEM)… read more here.
Keywords: triaxial simple; simple shear; shear tests; cyclic triaxial ... See more keywords
Discrete element study of bubble behaviors in Type D particle fluidization with and without interparticle cohesive forces
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DOI: 10.1007/s10035-018-0836-8
Abstract: The discrete element method is used to simulate bubble behaviors in a two-dimensional Type D fluidized bed. The aim of the study is to reveal the bubble formation process and bubble structure and to investigate… read more here.
Keywords: gas; study; interparticle; discrete element ... See more keywords
A more efficient method for calibrating discrete element method parameters for simulations of metallic powder used in additive manufacturing
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DOI: 10.1007/s10035-018-0848-4
Abstract: Laser powder bed fusion (LPBF) is an additive manufacturing (AM) process that uses a high-power laser to selectively melt metal powder that has been spread, layer-by-layer, to create parts with highly complex features. Because of… read more here.
Keywords: element method; method; process; powder ... See more keywords
Dynamic boundary setting for discrete element method considering the seismic problems of rock masses
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DOI: 10.1007/s10035-019-0918-2
Abstract: The discrete element method (DEM) provides an effective approach to analyse the large deformations and discontinuous problems in geotechnical engineering. In this paper, to improve the capability of DEM for seismic response analysis of rock… read more here.
Keywords: element method; boundary setting; dynamic boundary; rock masses ... See more keywords
Analysis of velocity of granular media in cascade finishing by discrete element method with experimental validation
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DOI: 10.1007/s10035-021-01154-x
Abstract: The cascade finishing used for surface finishing, cleaning, deburring, and stress relieving in industry has been increasing rapidly as a final manufacturing step in industry. The process was highly shown to be capable to improve… read more here.
Keywords: cascade finishing; velocity granular; velocity; granular media ... See more keywords