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  • RPI SCOREC - Technical Reports
    polymer chains in the matrix are preferentially oriented close to the interface with the relatively rigid fillers this leading to a graded interfacial layer about each inclusion The composite elastic moduli are determined based on the properties and geometry of the interfacial graded layer as well as on the moduli of the filler and the matrix and the volume fraction of filler Conversion curves are constructed allowing for an equivalence

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=328 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    are discussed The new kernel is longer ranged and physically meaningful improving therefore upon the existing Gaussian like non locality kernels As in the original Peierls Nabarro model lattice trapping cannot be captured in the purely continuum non local formulation and therefore a semi discrete framework is used The constitutive law of the elastic continuum and that of the glide plane are considered both local and non local in separate

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=329 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    pair as well as embedded atom type potentials are considered The derived kernels have a range which extends up to the cut off radius of the interatomic potential are positive at the origin and become negative approximately one atomic distance away thus departing from the commonly assumed Gaussian functional form The functional form of the potential and the radial distribution function of interacting neighbors about a representative atom fully define

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=330 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    changes The B relaxation corresponds to the return to isotropy of the atomic distribution in the neighborhood of a representative atom and encompasses a quasi elastic mode B1 and a slower mode B2 A diffusion like process governs the B2 mode The B1 mode is non exponential and accounts for roughly 50 of the total atomic scale stress drop during relaxation The B2 mode is exponential leads to a smaller

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=331 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    higher next to the interface compared to the bulk polymer segregation with the difference increasing with chain length The wall curvature does not significantly affect the segregation The bonds are preferentially oriented in the direction tangential to the wall The distance from the interface over which this effect is observed is about two bond lengths Similar results are obtained when probing the preferential orientation of chain segments In this case

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=332 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    US RESEARCH RESEARCHERS REPORTS SOFTWARE FACILITIES EMAIL SERVICES WIKIS Author J F Remacle M S Shephard X Li Title Error Estimation and Mesh Optimization for Beam Optics Applications Year 2001

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=33 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    for hyperelastic large deformation problems involving incompressible or nearly incompressible materials A Lagrangian finite element formulation is presented where mesh dependent terms are added element wise to enhance the stability of the mixed finite element formulation A reconstruction method based on local projection is used to compute the higher order derivatives that arise in the stabilization terms specifically derivatives of the stress tensor Linearization of the weak form is derived

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=34 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    transonic small disturbance system Year 2001 Journal International Journal for Numerical Methods in Engineering Volume 50 9 Pages 2069 2091 Abstract A stabilized finite element formulation for the transonic small disturbance system of equations is developped and used to solve a variety of problems in transonic aerodynamics An adaptative mesh refinement technique and a common discontinuity capturing operator are used to resolve regions with large gradients in the velocity field

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=35 (2015-07-15)
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