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  • RPI SCOREC - Technical Reports
    and J Fish Title Global Local Heat Conduction and Thermomechanical Analyses of Multichip Modules Year 1994 Pages Editor Abstract This paper presents a global local analysis procedure for multichip modules The global heat conduction and thermomechanical analysis procedures are based on a variational approximation procedure that produces a final system independent of the number of layers The local heat conduction analysis employs a fast floating random walk method The local

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=256 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    adaptive methodology for the analysis of steady and unsteady compressible fluid flows on distributed memory computers is presented The technique developed here relies on a stabilized implicit space time finite element formulation on a domain decomposition based strategy for achieving parallelism while efficiently exploiting data locality on an edge based adaptive scheme that combines refinement derefinement and triangulation optimization An element migration and load balancing procedure is used for reducing

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=257 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    1994 School Mechanical Engineering Institution RPI Abstract Presented in this thesis is a generalized attribute manager that provides a consistent analysis framework in which analysis data may be defined organized and associated with appropriate model entities An attribute is that information beyond the geometric domain needed to qualify the physical problem to be solved This thesis is divided into two major portions 1 presentation of the design and implementation of

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=258 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    Year 1994 Journal Finite Elements in Analysis and Design Volume 19 Pages 325 348 Abstract This paper addresses the issues concerning interfacing multiple modelers and attributes for analysis and visualization A system is described that i allows queries and modifications of the topology and geometry that defines a geometric model ii abstracts the modeler s functionality needed to associate analysis information iii provides a hierarchical attribute association model and iv

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=259 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    aimed at predicting the macromechanical overall structural response such as critical deformation vibration and buckling modes as well as various failure modes on the mesomechanical lamina level such as delamination and ply buckling and on the micromechanical the scale of microconstituents level such as debonding microbuckling etc The building blocks of this technology are i idealization error estimators aimed at quantifying the quality of the numerical and mathematical models of

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=260 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    Generation Year 1994 Journal Computing Systems in Engineering Volume 5 Pages 311 323 Abstract This paper discusses the development of an automatic mesh generation technique designed to effectively operate on multiple instruction multiple data MIMD parallel computers The paper first provides an overview of a new octree based procedure designed for the parallel generation of meshes of large numbers of elements directly from solid model representations The techniques required to

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=261 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    a dynamic load balancing strategy for parallel finite element methods with adaptive mesh h and order p refinement The load balancing algorithm is based on the tiling load balancing system where global balance in achieved by performing local balancing within overlapping neighborhoods of processors Tiling is applied to each mesh level created by the adaptive h refinement Weights are used in the migration routines to reflect the nonuniform elemental work

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=262 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    Saint Venant beam theory is implemented to calculate the sectional properties of naturally curved and twisted composite beam sections of complex shape This theory is expanded to allow the analysis of differential warping and a non linear strain effect common to rotor blades Various examples illustrate the use of both methods and show their powerful capabilities The kinematic constraints are implemented through a Lagrange multiplier technique This results in stiff non linear differential algebraic equations the numerical solution of which is plagued by spurious high frequency oscillations unless a method with high frequency numerical dissipation is used Conventional time integration schemes with high frequency numerical dissipation that were developed for linear systems are regularly applied also to non linear systems however without any proof of unconditional stability The energy preserving and energy decaying integration schemes are introduced With these schemes the equations of motion of the elastic bodies are discretized in such a way that the total energy of each body is preserved exactly in the energy preserving scheme or decays in the energy decaying scheme The forces of constraint associated with the kinematic constraints are discretized in such a way that they perform no work The combination of these

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=263 (2015-07-15)
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