Results 101 to 110 of about 2,102,930 (373)
A Study of Space-Time Discretizations for the Dirac Equation [PDF]
arXiv, 2014 We study several numerical discretization techniques for the one-space plus one-time dimensional Dirac equation, including finite difference and space-time finite element methods. Two finite difference schemes and several space-time finite elements function spaces are analyzed with respect to known analytic solutions.
arxiv
Closure to “Finite-Element Bending Analysis for Plates” [PDF]
, 1968 Leonard R. Herrmann
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Uncertainty finite element dynamic analysis
Applied Mathematical Modelling, 1979 Abstract An inference-dynamic model is developed based on a model dynamic analysis using a moving boundary condition. The uncertainty of the physical parameters is implemented in the model using an inference scheme coupled with a perturbation technique. Finally, the first two statistical moments of the displacements and the stress field are estimated
Dendrou, B. A., Houstis, Elias N.
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Advanced Engineering Materials, EarlyView.This study explores aerosol jet‐printed (AJP) surface roughness, its effects on the performance of microwave electronics, and its process contributors. First, an electromagnetic model is vetted for AJP's unique roughness signature. Simulations are built which show process‐induced roughness is as significant as conductor resistivity in driving microwave
Christopher Areias, Alkim Akyurtlu
wiley +1 more source
Finite Element Analysis of Reinforced Earth Walls
Journal of Engineering and Sustainable Development, 2009 Reinforced earth has been applied for different types of load supporting and retaining structures in more confidence throughout the world. In this study, the finite element method is implemented and used to analyze reinforced earth walls.
Mohammed Y. Fattah +2 more
doaj
Quadratic Mixed finite element approximations of the Monge-Ampere equation in 2D [PDF]
arXiv, 2014 We give error estimates for a mixed finite element approximation of the two-dimensional elliptic Monge-Ampere equation with the unknowns approximated by Lagrange finite elements of degree two. The variables in the formulation are the scalar variable and the Hessian matrix.
arxiv
Finite element analysis of helicopter structures [PDF]
Application of the finite element analysis is now being expanded to three dimensional analysis of mechanical components. Examples are presented for airframe, mechanical components, and composite structure calculations.
Rich, M. J.
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Finite Element Analysis of Membrane Structures [PDF]
, 2005 This paper summarizes the development for a large displacement formulation of a membrance composed of three-node triangular elements. A formulation in terms of the deformation gradient is first constructed in terms of nodal variables. In particular, the use of the right Cauchy-Green deformation tensor is shown to lead to a particulary simple ...
Taylor, Robert +2 more
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Advanced Engineering Materials, EarlyView.Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech +6 more
wiley +1 more source
Simple finite element schemes for the solution of the curl-div system [PDF]
arXiv, 2015 New variational formulations are devised for the curl--div system, and the corresponding finite element approximations are shown to converge. Curl--free and divergence--free finite elements are employed for discretizing the problem.
arxiv