Results 21 to 30 of about 94,516 (265)
Track ballast modelling by discrete element method
Građevinar, 2019 An increase in axle load and travel speed causes faster degradation of track structure and, hence, of the ballast prism. Crushing of stone grains in ballast due to excessive contact forces among these grains causes degradation in the form of filling of ...
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Discrete element method approach to modelling VPP dampers
MATEC Web of Conferences, 2018 In this paper, we present a novel approach to modeling and analysis of Vacuum Packed Particle dampers (VPP dampers) with the use of Discrete Element Method (DEM). VPP dampers are composed of loose granular medium encapsulated in a hermetic envelope, with
Chodkiewicz Pawel +2 more
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Advances in Civil Engineering, 2020 A brief literature review of numerical studies on excavation damage zone (EDZ) is conducted to compare the main numerical methods on EDZ studies. A hybrid finite-discrete element method is then proposed to model the EDZ induced by blasts.
Huaming An, Hongyuan Liu, Haoyu Han
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Boundary element method based on preliminary discretization [PDF]
Mathematical Models and Computer Simulations, 2014 The final publication is available at Springer via http://dx.doi.org/10.1134 ...
Poblet-Puig, Jordi +2 more
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ModellingShort-range forces enable peridynamics to simulate impact, yet it demands a computationally expensive contact search and includes no intrinsic damping.
Kinan Bezem +2 more
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A review of discrete modeling techniques for fracturing processes in discontinuous rock masses
Journal of Rock Mechanics and Geotechnical Engineering, 2014 The goal of this review paper is to provide a summary of selected discrete element and hybrid finite–discrete element modeling techniques that have emerged in the field of rock mechanics as simulation tools for fracturing processes in rocks and rock ...
A. Lisjak, G. Grasselli
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Finite element method–discrete element method bridging coupling for the modeling of gouge
International Journal for Numerical Methods in Engineering, 2022 AbstractWe discuss the multiscale modeling of a granular material trapped between continuum elastic domains. The amorphous granular region, usually termed “gouge,” is under high confinement pressure, to represent the loading of faults at depth. We model the granularity of gouge using the discrete element method (DEM), while the elastic regions ...
Voisin--Leprince, Manon Eugénie +3 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background General pediatricians often evaluate hematologic and oncologic presentations before subspecialty consultation, yet the 2025 Accreditation Council for Graduate Medical Education (ACGME) pediatric requirements reduce inpatient pediatric hematology/oncology (PHO) time, raising questions about resident readiness.
Colburn Yu, Rohini Jain
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Study on Sliding Friction Coefficient in Block Element Method Based on Experimental Method
Applied SciencesThe mechanics and motion behavior of granular materials affect the production and life of human beings. In order to study the influence of the sliding friction coefficients corresponding to different contact types in the block discrete element method on ...
Pengcheng Liu, Jun Liu, Yue Wang
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Slope Failure of Noncohesive Media Modelled with the Combined Finite–Discrete Element Method
Applied Sciences, 2019 Slope failure behaviour of noncohesive media with the consideration of gravity and ground excitations is examined using the two-dimensional combined finite⁻discrete element method (FDEM).
Xudong Chen, Hongfan Wang
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