SEARCH · Engineering Papers
Results for “Finite Elements”
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Development of a finite element based strain periodicity implementation method
Not Available
Electromagnetic model for finite element analyses of plasma disruption events used in the design phase of the COMPASS-U tokamak
Not Available
Simulating Knoop hardness anisotropy of aluminum and β-HMX with a crystal plasticity finite element model
Not Available
Finite Element Model for Air Permeability of Cracked Reinforced Concrete Plates
Explore the source record for details and available documents.
Spectral extended finite element method for band structure calculations in phononic crystals
Not Available
Transient testing of oxide fuels by spark plasma sintering and finite element analysis
Not Available
Finite element analysis of a ram brain during impact under wet and dry horn conditions
Not Available
Texture-sensitive prediction of micro-spring performance using Gaussian process models calibrated to finite element simulations
Not Available
Estimation of anisotropic elastic moduli from high energy X-Ray data and finite element simulations
Abstract not provided
Finite element modeling of electropolishing of radio frequency dipole Nb crab cavity in hydrofluoric-sulfuric acid electrolyte
The superior performance of niobium superconducting radio frequency (SRF) cavities is achieved through meticulous surface treatment, notably via chemical electropolishing, ensuring exceptionally smooth surfaces. While this technique has been extensively employed for cylindrically symmetric structures, addressing more intricate geometries poses significant challenges in achieving uniform polishing and controlled material removal, especially when moving away from retractable cathodes. This presents a multifaceted electrochemical, thermal, and fluid dynamics conundrum. A prime example is the 197 MHz radio frequency dipole (RFD) crabbing cavity proposed for the Electron Ion Collider (EIC) project, exemplifying such complex structures. Our groundbreaking work integrates the localized oxide thickness variation, considering its impact on current distribution and Joule heating, within the framework of multi-physics modeling using the COMSOL® simulation suite. This approach was applied to a comprehensive model of the RFD cavity, allowing us to investigate optimal external cooling water flow conditions necessary for achieving desirable outcomes. In conclusion, this illustrates the increasing utility of such multi-physics codes to greatly aid in designing solutions to challenging processing requirements for increasingly complex accelerator cavities.
An optimally convergent higher-order finite element coupling method for interface and domain decomposition problems
Not Available