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  • RPI SCOREC - Composite Materials & Structures
    EMAIL SERVICES WIKIS Composite Materials and Structures Current Research Topics Composite manufacture process modeling Micro mechanical studies FE formulations of advanced mixing models Composite shell elements Adaptive idealization control for

    Original URL path: http://www.scorec.rpi.edu/research_composite.php (2015-07-15)
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  • RPI SCOREC - Computational Biomechanics
    Solid modeling of physiological geometries Soft tissues such as cartilage and ligaments play an important role in the function of the human musculoskeleton In order to analyze these components meshes of the corresponding anatomical regions have to be created To create the meshes 3D measurements have to be taken and geometric models created augmented with additional information such as loading and muscle forces and passed to the meshing stage These geometric models can be explicitly defined using current solid modeling engines such as Parasolid or by discrete implicit representations Researchers are collaborating with the Orthopedic Research Laboratory at Columbia University A model of a tissue in a human knee Contact analysis of biphasic tissues Researchers primary interest is in the response of articular cartilage to the loads imposed by articulating a joint The biphasic theory is being used to provide the mathematical description of this response That theory models soft tissues as a binary mixture of an incompressible elastic solid and an incompressible inviscid fluid Boundary conditions for interfaces between biphasic materials are written for a surface between two domains Researchers assume frictionless contact and arrive at four contact continuity relations continuity of pressure normal component of elastic solid traction normal solid velocity and normal relative fluid flow Note that fluid velocity is not required to be continuous for biphasic continua in contact The diagram represents the geometric description of an axisymmetric model of the gleno humeral joint of the shoulder the finite element mesh is given in the lower portion of the figure Both the glenoid and humeral head cartilage are treated as transversely isotropic with stiffening fibers tangent to the tissue surface Click to enlarge Researchers use the Galerkin weighted residual method to generate finite element equations For the contact problem a weighted residual is constructed from the

    Original URL path: http://www.scorec.rpi.edu/research_biomechanical.php (2015-07-15)
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  • Jansen, Kenneth E.
    with emphasis on fluid dynamics Turbulence theory simulation and modeling Parallel computing The motivation of Ken s research is to provide engineers with a better predictive capability for fluid dynamics problems especially those where turbulence plays an non negligible role To this end his research at the most applied level seeks to develop simple models which describe the net effect or average of the turbulence upon the mean flow equations These models when combined with a fully unstructured grid finite element method allow engineers to model arbitrarily complex flow problems Unfortunately these models are not yet able to describe all turbulent flows Therefore other forms of simulating turbulence are also pursued These forms are 1 Large Eddy Simulation LES where the large scale motions of the turbulence are resolved in the computation leaving only the fine scale motions to be modeled 2 Direct Numerical Simulation DNS where all of the turbulent motions are resolved in the computational model These alternate forms are useful both to develop a more basic understanding of the theory of turbulence and to help improve the averaged models used by engineers Click here to view velocity contours on four planes parallel to the wing and one plane normal to the wing from a LES 35k To see an animation colorful one of this flow click one or more of the following animations here 8 9MB here 11 6MB long time interval here 15 5MB shorter time more frequent sampling smoother here a single frame image of the animation Click here to view vorticity isosurfaces from and LES of turbulent flow over a cavity 1 4MB might want to wait until night or for a quick view try this one which is a much smaller file but is more fuzzy 44k If you have a VERY fast

    Original URL path: http://www.scorec.rpi.edu/~kjansen/ (2015-07-15)
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  • PhD degree from Rensselaer in 2007 and Bachelors degree from Indian Institute of Technology Bombay IIT B in 2002 His research interests span modeling and simulation of coupled fluid flow problems His research is focused on the development and application of simulation based predictive tools for fluid flow problems involving turbulence and flow control His research puts emphasis on high order and adaptive methods extreme scale computing and uncertainty quantification

    Original URL path: http://www.scorec.rpi.edu/~sahni/ (2015-07-15)
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  • RPI SCOREC - Mark S. Shephard
    recipient of the 1997 USACM Computational and Applied Sciences Award a fellow and member of the General Council in the International Association for Computational Mechanics a fellow of ASME and an Association Fellow of AIAA He is editor of Engineering with Computers and on the editorial board of five computational mechanics journals Research Areas Dr Shephard s research activities have focused on the development of techniques to reliably automate multiscale

    Original URL path: http://www.scorec.rpi.edu/researchers_shephard.php (2015-07-15)
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  • RPI SCOREC - Technical Reports
    W Zingg Multidimensional Summation By Parts Operators General Theory and Application to Simplex Elements View Report 2015 2 Cameron W Smith Ben Matthews Michel Rasquin Kenneth E Jansen Performance and Scalability of Unstructured Mesh CFD Workflow on Emerging Architectures View

    Original URL path: http://www.scorec.rpi.edu/reports/by_year.php?year=2015 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    for vortex induced nonlinear fluid structure interaction at low Reynolds numbers View Report 2014 6 Jason Li Onkar Sahni Numerical Investigation of Flow Structures and Interactions due to a Pitched Synthetic Jet in a Laminar Boundary Layer View Report 2014 7 Steven Tran David Corson Onkar Sahni Synthetic Jet based Active Flow Control of Dynamic Stall Phenomenon on Wind Turbines Under Yaw Misalignment View Report 2014 8 Dan Ibanez Ian Dunn Mark S Shephard Hybrid MPI thread Parallelization of Adaptive Mesh Operations View Report 2014 9 Daniel A Ibanez E Seegyoung Seol Cameron W Smith Mark S Shephard PUMI Parallel Unstructured Mesh Infrastructure View Report 2014 10 Ardavan Zandiatashbar Gwan Hyoung Lee Sung Joo An Sunwoo Lee Nithin Mathew Mauricio Terrones Takuya Hayashi Catalin R Picu James Hone Nikhil Koratkar1 9 Effect of defects on the intrinsic strength and stiffness of graphene View Report 2014 11 A Pal and R C Picu Rotational defects in cyclotrimethylene trinitramine RDX crystals View Report 2014 12 R C Picu Z Li M A Soare S Sorohan D M Constantinescu E Nutu Composites with fractal microstructure The effect of long range correlations on elastic plastic and damping behavior View Report 2014 13 Alp Dener Jason E Hicken Revisiting Individual Discipline Feasible using matrix free Inexact Newton Krylov View Report 2014 14 Ottmar Klaas Mark Beall Mark S Shephard GENERATION OF GEOMETRIC MODELS AND MESHES FROM SEGMENTED IMAGE DATA View Report 2014 15 Mark S Shephard Cameron W Smith Mark W Beall TECHNOLOGIES FOR THE CONSTRUCTION OF PARALLEL SIMULATION WORKFLOWS View Report 2014 16 Zhu P E Cruz Silva and V Meunier Electronic transport properties in graphene oxide frameworks View Report 2014 17 Mariano Torres Costa A L V Meunier and E C Girao Electronic transport in three terminal triangular carbon nanopatches View Report 2014

    Original URL path: http://www.scorec.rpi.edu/reports/by_year.php?year=2014 (2015-07-15)
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  • RPI SCOREC - Technical Reports
    and Opportunities View Report 2013 11 Elizabeth P Canović D Thomas Seidl Samuel R Polio Assad A Oberai Paul E Barbone Dimitrije Stamenović and Michael L Smith Biomechanical Imaging of Cell Stiffness and Prestress with Subcellular Resolution View Report 2013 12 U Albocher P E Barbone M S Richards A A Oberai and I Harari Approaches to accommodate noisy data in the direct solution of inverse problems in incompressible plane strain elasticity View Report 2013 13 Duplicate of 2013 9 View Report 2013 14 Nithin Mathew Catalin R Picu Peter W Chung Peierls Stress of Dislocations in Molecular Crystal Cyclotrimethylene Trinitramine View Report 2013 15 6 A S Shahsavari R C Picu Heterogeneity and size effects in random semiflexible fiber networks View Report 2013 16 N Mathew R C Picu Slip asymmetry in the molecular crystal cyclotrimethylenetrinitramine View Report 2013 17 Jayanth Jagalur Mohan Onkar Sahni Alireza Doostan Assad Oberai Variational multiscale analysis the fine scale Green s function for stochastic partial differential equations View Report 2013 18 Lijuan Zhang Microstructural modeling of cross linked fiber network embedded in continuous matrix View Report 2013 19 Lijuan Zhang Microstructural modeling of cross linked fiber network embedded in continuous matrix View Report 2013 20 John C Vaccaro Yossef Elimelech Yi Chen Onkar Sahni Kenneth E Jansen Michael Amitay Experimental and numerical investigation on the flow field within a compact inlet duct View Report 2013 21 Misbah Mubarak E Seegyoung Seol Mark S Shephard A parallel ghosting algorithm for the flexible distributed mesh database View Report 2013 22 A S Shahsavari and R C Picu Elasticity of sparsely cross linked random fibre networks View Report 2013 23 Z Li and R C Picu Shuffle glide dislocation transformation in Si View Report 2013 24 Z Li N Mathew R C Picu Dependence of Peierls

    Original URL path: http://www.scorec.rpi.edu/reports/by_year.php?year=2013 (2015-07-15)
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