Results 231 to 240 of about 1,173,141 (265)
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Engineering Computations, 2004
Discrete element method (DEM) has been extensively used in the laboratory of particulate and multiphase processing at the University of New South Wales (UNSW) to study the fundamentals of particulate matter at a particle scale. This paper briefly reviews the work in the laboratory, which covers the development of simulation techniques and their ...
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Discrete element method (DEM) has been extensively used in the laboratory of particulate and multiphase processing at the University of New South Wales (UNSW) to study the fundamentals of particulate matter at a particle scale. This paper briefly reviews the work in the laboratory, which covers the development of simulation techniques and their ...
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Finite element discretization of open‐type axisymmetric elements
International Journal for Numerical Methods in Engineering, 1979AbstractA series of open‐type elements which are compatible with axisymmetric thin shell elements have been dervied. These elements allow the effects of intermediate openings and discrete support systems for rotational shells to be realistically modelled in the dynamic regime.
Basu, Prodyot K., Gould, Phillip L.
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A cylindrical shell discrete element.
AIAA Journal, 1967The development of the stiffness and consistent mass matrices for a finite cylindrical shell element is reported. The derivation of these matrices is based upon linear behavior and thin-shell assumptions. Expressing the assumed displacement state over the middle surface of the cylindrical shell element as products of one-dimensional, first-order ...
Bogner, F. K., Fox, R. L., Schmit, L. A.
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2001
In this section, the finite element equations for the updated Lagrangian formulation are developed by means of the principle of virtual power. For this purpose the current domain Ω is subdivided into elements Ω e so that the union of the elements comprises the total domain, Ω = ∪ Ω e . The nodal coordinates in the current configuration are denoted by x
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In this section, the finite element equations for the updated Lagrangian formulation are developed by means of the principle of virtual power. For this purpose the current domain Ω is subdivided into elements Ω e so that the union of the elements comprises the total domain, Ω = ∪ Ω e . The nodal coordinates in the current configuration are denoted by x
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Discrete-Element Interferometers
2010A number of Long Baseline Optical Interferometers (LBOI), providing submilliarcsec resolution, are in place on Earth, while space-based telescope arrays are being designed (Saha 2002; Monnier 2003; Labeyrie et al. 2006). Most of these instruments combine the features of the Michelson design and the radio interferometers.
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2016
Discretization of a boundary-value problem by the finite element method requires evaluation of various integrals over the elements into which the region of interest is partitioned.
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Discretization of a boundary-value problem by the finite element method requires evaluation of various integrals over the elements into which the region of interest is partitioned.
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DISCRETE FINITE ELEMENT METHOD
Engineering Computations, 1992A numerical technique is described for the analysis of multiple interacting deformable bodies undergoing large displacements and rotations. Each body is considered an individual discrete unit, which is idealized by a finite element model. Discrete finite element models interact with their surroundings through contact stresses, which are continually ...
R. BARBOSA, J. GHABOUSSI
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3D dynamics of discrete element systems comprising irregular discrete elements
International journal for numerical methods in engineering, 2003An algorithm for transient dynamics of discrete element systems comprising a large number of irregular discrete elements in 3D is presented. The algorithm is a natural extension of contact detection, contact interaction and transient dynamics algorithms developed in recent years in the context of discrete element methods and also the combined finite ...
Munjiza, A, Latham, JP, John, NWM
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Discrete‐element modelling of detachment folding
Basin Research, 2005ABSTRACTA two‐dimensional, discrete‐element modelling technique is used to investigate the initiation and growth of detachment folds in sedimentary rocks above a weak décollement level. The model depicts the sedimentary rocks as an assemblage of spheres that obey Newton's equations of motion and that interact with elastic forces under the influence of ...
Hardy, Stuart, Finch, Emma
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