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  • RPI SCOREC - Technical Reports
    of these analyses of crucial importance for their efficient application in a design environment The automation of these analyses required the utilization of capabilities previously existing at SCOREC as well as the development of new capabilities specific to the needs of FMC Ease of use and user friendliness of the developed capabilities were stressed in their design and implementation to facilitate incorporation at FMC Both the existing capabilities and those

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=264 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    hybrid variational principle which enforces compatibility between independently modeled substructures in the weak sense The basic idea of the proposed family of solvers is to transform a nonpositive definite linear system to an equivalent positive definite system which then can be solved by either iterative or direct method without pivoting The two level iterative approach proposed in the paper consists of resolving the lower frequency response of the source problem

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=265 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    of displacement based hierarchical shell elements typically up to polynomial order six For thin shells hierarchical assumed strain elements with five degrees of freedom two rotations and three mid plane translations and six degrees of freedom three translations on the top and bottom surfaces of the shell per hierarchical mode have been formulated Hierarchical in plane modes are adaptively selected on the basis of their ability to reduce solution errors

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=266 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    ABOUT US RESEARCH RESEARCHERS REPORTS SOFTWARE FACILITIES EMAIL SERVICES WIKIS Author Title Replaced By Scorec Report 33 1995 Year 1994 Abstract

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=267 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    intergrid connection operators have been developed to imitate a low frequency response of the differential equations with oscillatory coefficients The proposed multi grid method has been proved to have a fast rate of convergence governed by the ratio where depends on the microstructure This estimate reveals that the rate of convergence increases as which corresponds to the increasing material heterogeneity An adaptive multiscale computational scheme is developed By this technique

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=268 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    method are described These include i a novel quadrature scheme for hierarchical shell elements ii a family of assumed strain hierarchical shell elements iii selective polynomial order escalation for assumed strain elements and iv accelerated multigrid like solution procedures Numerical experiments indicate that with these enhancements it is possible to speed up the overall computational time of p method for analysis of shells by a factor greater than five for

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=269 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    Volume 126 Pages 17 38 Abstract A multi grid method for a periodic heterogeneous medium in multidimensions is developed Based on the homogenization theory special intergrid transfer operators have been developed to simulate a low frequency response of the boundary value problem with oscillatory coefficients An adaptive strategy is developed to form a nearly optimal two scale computational model consisting of the finite element mesh entirely constructed on the microscale

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=271 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    Pages 13 14 Editor M J Askew Abstract Solution of Contact problems such as the three body femur meniscus and tibia analysis in the knee are an essential part of research in diarthrodial joint mechanics There are numerous studies which focus on geometry 1 load transfer during articulation 2 and material properties of the components of the knee joint 3 for example Results from experimental investigations of this problem are

    Original URL path: http://www.scorec.rpi.edu/reports/view_report.php?id=272 (2015-07-15)
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