Curriculum Vitae

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EXPERIENCE


  • Research Engineer - Mathematical Modeling, Novelis Inc., Navi Mumbai, India (Nov. 2008 – till date)

    • Generate mathematical models that are value-creating, unique-to-Novelis' insight into materials and processes which provide an advantage over the competition.
    • Primary contact for Novelis Inc. in Asia for computer based mathematical modeling of deformation of rolled aluminum sheet products like beverage cans.
    • Provide expert mathematical modeling skills in support of Novelis’ worldwide R&T programs.
    • Establish a framework for collaborations with local academic institutions – Study of forming and mechanical performance of commercial aluminum alloys.
    • Established a framework for transfer of rolling process models from Novelis Inc. to Hindalco Industries Ltd. (parent company of Novelis Inc.) as part of the technology transfer program.

 RESEARCH EXPERIENCE

  • Member, Editorial Board, Micromachines (Feb. 2009 – till date)

    Micromachines (ISSN 2072-666X), an international open access journal on the technology and science of micro-scale machines published by Molecular Diversity Preservation International (MDPI). The first issue of this journal was released in 2009.

  • Postdoctoral Research Associate, Division of Engineering, Brown University, Providence, RI, USA (Oct. 2007 – Sep. 2007)

    The work involves development of an efficient scheme that combines the finite elements with an optimization scheme based on a quadratic programming to determine the equilibrium composition profiles in strained quantum dots. Composition profiles are strongly dependent on the shape of the quantum dots, as strain relaxation in dots with steeper sidewalls allows for segregation of the larger alloy component in the regions near the apex.

  • Associate Scientist, Institute for Reliability of Components and Systems, University of Karlsruhe, Karlsruhe, Germany (Oct. 2003 – Sep. 2007)

    Three numerical tools to simulate wear for micro-machine applications were developed. They include, the Wear-Processor, a finite element based simulation tool. The second tool is a computationally efficient, incremental implementation of a wear model on the global scale (Global Incremental Wear Model - GIWM) for computing wear on the interacting surfaces of simple geometries. The last tool is a user-defined subroutine UMESHMOTION in ABAQUS. These tools were used to identify the wear coefficients from tribo-experiments. The Wear-Processor was extended to simulate wear in 2D transient tribo-systems like micro gears and also being applied to study wear of advanced coatings using parameters identified from tribo-experiments.

  • Young Scientist, Institute for Materials Research II, Forschungszentrum Karlsruhe GmbH, Karlsruhe, Germany (Feb. 2002 – Sep. 2003)

    A numerical tool was developed to simulate wear in axi-symmetric tribo-systems. The finite element based simulation tool, the Wear-Processor implements a relevant wear model on the local scale.

  • Research Assistant, Institute for Microsystems Technology (May. 2001 – Oct. 2001), Hamburg University of Technology (TUHH) (Nov. 1999 – Sep. 2000), Hamburg, Germany

    The work involved coupled fluid and thermal field analysis (using ANSYS) of a micro machined thermal conductivity sensor used in a micro gas chromatograph. The sensor output signal showed a dependence on fluid flow and temperature. The aim of the thesis was to optimize the sensor performance by minimizing the observed parasitic effects through design modifications. The simulations showed that design modifications could partly solve this problem.

    FE electrostatic simulations on a parallel plate and inter-digital capacitor structures were performed using ANSYS. Different capacitor structure designs were studied for determining the optimum structure design that maximized “Electro-luminescence” on one of the coated microcapacitor plates.

  • Research Assistant, Robert Bosch GmbH, Reutlingen, Germany (Oct. 2000 – Mar. 2001)

    FEM Simulations of thermo-mechanical stresses using ANSYS were carried out on one of Bosch's chemical sensor for automotive applications. The failure (stress induced voiding) of thin platinum films (electrodes) due to residual stress gradients resulting from the elevated processing temperatures was analyzed. The simulations showed that at the location where voiding occured were subjected to steep stress gradients. The aim of these simulations was to restrict the damage in the metal film by modifying the sensor design.

OTHER EXPERIENCE

  • Engineer - Marine, Mitsui OSK Lines, Japan (1997 – 1998)
  • Engineer – Purchase, Kinetic Honda Ltd, India (1996 – 1997)

EDUCATION

  • Doctorate in Engineering (Mechanical Engineering), University of Karlsruhe, Karlsruhe, Germany, (Feb. 2002 – Mar. 2006)
  • Master of Science (Mechatronics), Hamburg University of Technology (TUHH), Hamburg, Germany, (Oct. 1999 – Oct. 2001)
    • Major Thesis: Modeling and Simulation of the Performance of a Thermal Conductivity Detector for a Micro Gas Chromatograph (Advisor: Prof. Manfred Kasper) [download]
    • Minor Thesis: Simulation of Thermo – Mechanical Stresses Induced in Thin Film Metallisation of a Chemical Sensor (Advisor: Dipl. -Ing. Joerg Muchow (Robert Bosch GmbH), Prof. Manfred Kasper (TUHH)) [download]
  • Bachelor of Engineering (Mechanical Engineering), Karnatak University, Dharwad, India (Jul. 1992 – Oct. 1996)
    • Thesis: Design and Fabrication of a Laboratory Scale Ice Plant (Advisor: Prof. Raghvendra Rao)

HONORS

  1. The numerical wear simulation tool, Wear-Processor developed during my doctoral work is used by Robert Bosch GmbH for developing advanced wear resistant coatings for engine applications.
  2. Sub-project “Wear Simulation” (PhD thesis) was evaluated as “excellent” from within the Collaborative Research Center, SFB 499 by independent reviewers
  3. My article featured on the cover of the Jan 2005 issue of the journal MSMSE (IOP)
  4. Cash award for standing first in “Marine Electricity” during marine engineering training

PUBLICATIONS

  • Peer - Reviewed Journal Articles
    1. L. Steiner, V. Bouvier, U. May, V. Hegadekatte, N. Huber, Modelling of unlubricated oscillating sliding wear of DLC-coatings considering surface topography, oxidation and graphitisation, 2009, under review.
    2. V. Hegadekatte, N. V. Medhekar, V. B. Shenoy, Energetics of SiC step structures, 2009, under preparation
    3. V. Hegadekatte, N. Huber, N. Schwarzer, N. Bierwisch, Simulation of wear in advanced coatings, 2009, under preparation.
    4. V. Hegadekatte, J. Hilgert, O. Kraft, N. Huber, Multi time scale simulations for wear prediction in micro-gears, 2009, under review.
    5. N. V. Medhekar, V. Hegadekatte, V. B. Shenoy, Compositional patterning in coherent and dislocated alloy nanocrystals, Solid State Communications, 2009, in press. [download]
    6. S. Kurzenhäuser, V. Hegadekatte, J. Schneider, N. Huber, O. Kraft, K. -H. Zum Gahr, Tribological characterization and numerical wear simulation of microcomponents under sliding and rolling conditions, Microsystem Technology, 2008, 14 (12), p. 1839 - 1846. [download]
    7. V. Hegadekatte, S. Kurzenhäuser, N. Huber, O. Kraft, A predictive modeling scheme for wear in tribometers, Tribology International, 2008, 41. p. 1020 - 1031. [download]
    8. N. V. Medhekar, V. Hegadekatte, V. B. Shenoy, Composition maps in self-assembled alloy quantum dots, Physical Review Letters, 2008, 100, p. 106104. [download] (Selected for the March 24, 2008 issue (Volume 17, Issue 12) of the Virtual Journal of Nanoscale Science and Technology)
    9. V. Hegadekatte, N. Huber, O. Kraft, Modeling and simulation of wear in a pin on disc tribometer, Tribology Letters, 2006, 24, p. 51 – 60. [download]
    10. V. Hegadekatte, N. Huber, O. Kraft, Finite element based simulation of dry sliding wear, Modelling and Simulation in Materials Science and Engineering, 2005, 13, p. 57 – 75. (Featured on the cover) [download]
  • Books/Book Chapters
    1. V. Hegadekatte, Modeling and simulation of dry sliding wear for micro-machine applications, Dissertation, University of Karlsruhe, Publication Series: Materials Science and Technology Ed.: D. Löhe, A. Wanner, P. Gumbsch, O. Kraft, Shaker Verlag GmbH, Aachen, Germany, 2006 (ISBN 3-8322-5210-X). [download]
    2. V. Hegadekatte, N. Huber, O. Kraft, Chapter 22: Development of a Simulation Tool for Wear in Microsystems, Micro-Engineering in Metals and Ceramics Design Part II, Volume Ed.: D. Löhe, J. H. Haußelt (Advanced Micro and Nano Systems Vol. 4, Ed.: H. Baltes, O. Brand, G. K. Fedder, C. Hierold, J. G. Korvink and O. Tabata), Wiley-VCH Verlag GmbH, Weinheim, Germany, 2005 (ISBN 3-527-31493-8). [download]
  • Presentations/Invited Talks
    1. N. Huber*, V. Hegadekatte, Recent developments in wear simulation and wear model identification, Fraunhofer Institute for Mechanics of Materials, Freiburg, Jan. 25, 2008 (Invited).
    2. V. Hegadekatte*, N. Huber, Wear Simulation of Tribosystems, Proceedings ABAQUS Regional User Conference 2007, Baden-Baden, Germany, Sep. 17 - 18, 2007, on CD. [download: Article | Presentation]
    3. V. Hegadekatte*, S. Kurzenhäuser, N. Huber, O. Kraft, A predictive modeling scheme for wear in pin-on-disc and twin-disc tribometers, Proceedings 34th Leeds-Lyon Symposia on Tribology, Lyon, France, Sep. 4 - 7, 2007, on CD. [download: Presentation Part1 | Part2]
    4. V. Hegadekatte*, N. Huber, O. Kraft, Finite element based simulation of dry sliding wear, Technical University of Chemnitz, Chemnitz, Germany, Dec. 8, 2006. (Invited) [download]
    5. V. Hegadekatte*, N. Huber, O. Kraft, Modeling and simulation of wear in a pin on disc tribometer, Proceedings International Joint Tribology Conference, San Antonio, USA, Oct. 23 - 25, 2006, on CD. [download]
    6. V. Hegadekatte*, N. Huber, O. Kraft, Modeling and simulation of wear, Indian Institute of Technology, Delhi, India, Aug. 8, 2006.
    7. V. Hegadekatte*, N. Huber, O. Kraft, A finite element based technique for simulating sliding wear, Proceedings World Tribology Congress III, Washington, USA, Sept. 12 - 16, 2005, on CD. [download]
    8. V. Hegadekatte*, N. Huber, O. Kraft, A finite element based method for wear simulation in microsystems, Proceedings 1st Vienna International Conference on Micro- and Nano-Technology, Vienna, Austria, March 9 - 11, 2005, p. 181 - 190. [download]
  • Conference Proceedings/Posters/Workshops
    1. N. V. Medhekar*, V. Hegadekatte, V. B. Shenoy, Composition Maps in Coherent and Dislocated Self-Assembled Alloy Quantum Dots, Presentation, 2008 MRS Fall Meeting, Boston, MA, Dec. 1 - 5, 2008.
    2. V. Hegadekatte, O. Kraft, N. Huber*, Modelling and Simulation of Wear in Micro-machines,  Proceedings International Symposium on Friction, Wear and Wear Protection, Aachen, Germany, Apr.  9 - 11, 2008.
    3. L. Steiner*, V. Bouvier, S. Grosse, N. Huber, V. Hegadekatte, C.P.O. Treutler, Modeling and simulation of unlubricated oscillating sliding wear of DLC-coatings,  Proceedings International Symposium on Friction, Wear and Wear Protection, Aachen, Germany, Apr.  9 - 11, 2008. [download]
    4. N. V. Medhekar*, V. Hegadekatte, V. B. Shenoy, Composition maps in strained alloy quantum dots, Presentation, 2008 APS March Meeting, New Orleans, Louisiana, Mar. 10 - 14, 2008.
    5. S. Kurzenhäuser*, V. Hegadekatte, J. Schneider, N. Huber, O. Kraft, K. –H. Zum Gahr, Tribological characterization and numerical wear simulation of micro-components under sliding and rolling conditions, Proceedings Kolloquium Mikroproduktion, Karlsruhe, Germany Nov. 22 - 23, 2007. (in German).
    6. Attended a 2 day workshop on Material Models – from Nano to Macro, Hamburg (MatModels 2007), Germany, Jun. 2007
    7. N. Huber*, V. Hegadekatte, O. Kraft, Modelling and simulation of wear in micro gears, Proceedings Multiscale Materials Modeling, Freiburg, Germany, Sept. 18 - 22, 2006, p. 970 - 973. [download]
    8. V. Hegadekatte*, N. Huber, O. Kraft, Modelling and simulation of dry sliding wear, Poster, Tribology, Gordon Research Conference, Waterville, ME, USA, Jun. 18 - 23, 2006. [download]
    9. N. Huber*, V. Licht, V. Hegadekatte, O. Kraft, A fast design-tool for ceramics under static and cyclic contact loading, Proceedings 11th International Conference on Fracture, Paper No. 5700, Turin, Mar. 20 - 25 2005, on CD. [download]
    10. V. Hegadekatte, J. Herz, N. Huber*, J. Schneider, K. –H Zum Gahr, Methods for estimation of wear in ceramic micro gear train, Proceedings Kolloquium Mikroproduktion, Aachen, Germany, Mar. 2 - 3, 2005, p. 143 - 150. (in German)
    11. Attended a 10 day workshop on “Semiconductors and Microsystem Technologies” conducted by the Hamburg University of Technology in collaboration with Philips Semiconductor GmbH, Aug. 2001
    * Presenting Author

COMPUTER SKILLS

  • Languages: C, C++, Python, FORTRAN, ANSYS APDL
  • FE Packages: ABAQUS, PATRAN, ANSYS, FEMGEN/FEMVIEW
  • Other Packages: MAPLE, Matlab, OpenMP, Lab-Windows/CVI
  • OS: Linux (Ubuntu, SUSE, RedHat), UNIX (AIX), Windows 2000/XP

MENTORING

  1. Mr. A. Kashyap, Indian Institute of Technology, India (Internship) - May. to Jul. 2007
  2. Mr. J. Hilgert, Hamburg University of Technology, Germany (Student Research Project) - Apr. to Sep. 2007
  3. Mrs. R. Padiadpu, Hamburg University of Applied Sciences (Research Assistant) - Feb. to Apr. 2007
  4. Mr. B. Kanavalli, Royal Institute of Technology, Sweden (Master Thesis) - Dec. to Jul. 2006
  5. Mr. M. Bhatnagar, Indian School of Mines, India (Internship) - Jun. to Aug. 2005
  6. Mr. R. Reddy, Aachen University of Applied Sciences, Germany (Internship) - Oct. to Dec. 2003

REVIEWER

  1. Modelling and Simulation in Materials Science and Engineering (IOP)
  2. Tribology International (Elsevier)
  3. Tribology Transactions (STLE)
  4. Carbon (Elsevier)
  5. Tribology Letters (Springer) 
  6. Nanotechnology (IOP)