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Results for “finite element method”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Steam generator tube rupture simulation using extended finite element method
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Stochastic finite element methods for partial differential equations with random input data
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Finite-element methods for noncollinear magnetism and spin-orbit coupling in real-space pseudopotential density functional theory
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A spacetime finite element method for coupled acoustic fluid-structure interactions.
Abstract not provided.
Error Analysis for Constrained First-Order System Least-Squares Finite-Element Methods
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AN ADAPTIVE FINITE ELEMENT METHOD WITH DYNAMIC LES FOR TURBULENT REACTIVE FLOWS
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Finite Element Methods and Multigrid Methods for the Dirac Equation
Progress has been made in several of the proposed areas of research, as summarized below.
Modeling 3D PCMI using the Extended Finite Element Method with higher order elements
This report documents the recent development to enable XFEM to work with higher order elements. It also demonstrates the application of higher order (quadratic) elements to both 2D and 3D models of PCMI problems, where discrete fractures in the fuel are represented using XFEM. The modeling results demonstrate the ability of the higher order XFEM to accurately capture the effects of a crack on the response in the vicinity of the intersecting surfaces of cracked fuel and cladding, as well as represent smooth responses in the regions away from the crack.
Laser Spot Welding using an ALE Finite Element Method
This memo consists of a manuscript draft that was never published, but was prepared in 2002 at Sandia. It is used as a user-guide for running simulations of laser welding with Sandia's Goma 6.0 software.