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Your search keyword '"Galerkin's technique"' showing total 3 results
Start Over Descriptor "Galerkin's technique" Publisher emerald publishing limited
3 results on '"Galerkin's technique"'

1. Element-free Galerkin method for contact problems in metal forming analysis.

Author

Guangyao Li and Belytschko, Ted

Abstract

The total Lagrangian formulation and implementation of the element-free Galerkin method (EFG) is presented for the analysis of contact-impact problems with large deformations and for the simulation of metal forming processes. An integration scheme based on stress points is used, so no mesh is needed. A simple but general contact searching algorithm is used to treat the contact interface and an algorithm for the contact force is presented. Numerical results for Taylor bar impact are compared to finite element solutions and agree well. Solutions to upsetting, extrusion of metals with large material distortions are given to show the effectiveness of the algorithm. In particular, EFG is shown to be more capable of treating motions of the workpiece around corners of the punch than finite element methods. [ABSTRACT FROM AUTHOR]

Published
2001
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2. Fast field computations with the fast multipole method.

Author

Buchau, André, Rieger, Wolfgang, and Rucker, Wolfgang M.

Abstract

The application of the fast multipole method reduces the computational costs and the memory requirements of the boundary element method from O(N2) to approximately O(N). In this paper we present that the computational costs can be strongly shortened, when the multipole method is not only used for the solution of the system of linear equations but also for the field computation in arbitrary points. [ABSTRACT FROM AUTHOR]

Published
2001
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3. Effect of throughflow and Coriolis force on Bénard convection in micropolar fluids.

Author

Murty, Yedidi N.

Abstract

The effect of throughflow and Coriolis force on convective instabilities in micropolar fluid layer heated from below for free-free, isothermal and micro-rotation free boundaries is investigated. Calculations are made using a lower order Galerkin approximation to solve the eigenvalue problem for stationary instability. It is observed that both stabilizing and destabilizing factors due to constant vertical throughflow can be enhanced by rotation. [ABSTRACT FROM AUTHOR]

Published
1999
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