Debraj Ghosh

Associate Professor
Department of Civil Engineering
Indian Institute of Science
Bangalore 560012, Karnataka, India
Phone: +91-80-2293-2818
E-mail: dghosh at civil.iisc.ernet.in

   

Research interest

Computational mechanics, Stochastic finite elements, Probabilistic methods, Domain decomposition techniques, Parallel computing.

Education

PhD in Civil Engineering 2005, The Johns Hopkins University

M.E. in Civil Engineering (Structures) 2001, Indian Institute of Science, Bangalore

B.E. in Civil Engineering 1997, Bengal Engineering College

Experience

Assistant Professor, Dept of Civil Engineering, Indian Institute of Science, 2008 - 2014

Postdoctoral Scholar, Dept of Mechanical Engineering, Stanford University, 2005 - 2008

Visiting Scholar, Dept of Civil and Environmental Engineering, University of Southern California, Jan - Sept 2005

Research Assistant, Dept of Civil Engineering, The Johns Hopkins University, 2002-2005

Teaching Assistant, Dept of Civil Engineering, The Johns Hopkins University

Software Engineer, Geometric Software Soln. Ltd., Pune, India, 2001.

Design Engineer, Arora Associates, New Delhi, India, 1997-1998.

Publications

Journal

Krishnan A N M and Ghosh D. Mechanics of metal-nanocomposites at multiple length scales: A case study on Al-BNNT, Journal of Nanomechanics and Micromechanics, ASCE, Accepted, 2017.

Suryawanshi A and Ghosh D. A semi-intrusive stochastic perturbation method for lift prediction and global sensitivity analysis, Artificial Intelligence for Engineering Design, Analysis and Manufacturing, Accepted, 2017.

Chandra A, Krishnan A N M, Patra P K, and Ghosh D. Coaxial Boron-Nitride/Carbon nanotubes as a potential replacement for double-walled carbon nanotubes for high strain applications, Journal of Nanoscience and Nanotechnology, Accepted, 2016.

Pranesh S and Ghosh D. Addressing the curse of dimensionality in SSFEM using the dependence of eigenvalues in KL expansion on domain size, Computer Methods in Applied Mechanics and Engineering, Volume 311, 457-475, 2016.

Krishnan A N M and Ghosh D. Buckling analysis of cylindrical thin-shells using strain gradient elasticity theory, Meccanica, DOI: 10.1007/s11012-016-0468-1, 2016.

Sarkar K, Ganguli R, Ghosh D, and Elishakoff I. Closed-form solutions and uncertainty quantification for gravity-loaded beams, Meccanica, Volume 51, Number 6, 1465-1479, 2016

Suryawanshi A and Ghosh D. Reliability based optimization in aeroelastic stability problems using polynomial chaos based metamodels, Structural and Multidisciplinary Optimization, Volume 53, Issue 5, 1069-1080, 2016.

Hossain Md. N, Sarkar S, and Ghosh D. Identification of dominant modes in random dynamical and aeroelastic systems, Journal of Sound and Vibration, Volume 357, 128-144, 2015.

Sarkar S and Ghosh D. A hybrid method for stochastic response analysis of a vibrating structure, Archive of Applied Mechanics, Volume 85, 1607-1626, 2015.

Pranesh S and Ghosh D. Faster computation of the Karhunen-Loeve expansion using its domain independence property, Computer Methods in Applied Mechanics and Engineering, Volume 285, 125-145, 2015.

Suryawanshi A and Ghosh D. Wind speed prediction using spatio-temporal covariance, Natural Hazards, Volume 75, 1435-1449, 2015.

Krishnan A N M and Ghosh D. Defect induced plasticity and failure mechanism of boron nitride nanotubes under tension, Journal of Applied Physics, Volume 116, 044313 (1-6), 2014.

Krishnan A N M and Ghosh D, A novel method for studying the buckling of nanotubes considering geometrical imperfections, Applied Physics A, Volume 117, 945-953, 2014.

Krishnan A N M and Ghosh D, Chirality dependent elastic properties of single-walled boron nitride nanotubes under axial and torsional loading, Journal of Applied Physics, Volume 115, 064303 (1-5), 2014.

Ghosh D and Suryawanshi A, Approximation of spatio-temporal random processes using tensor decomposition, Communications in Computational Physics, Volume 16, Number 1, 75-95, 2014.

Ghosh D. Probabilistic interpretation of conjugate gradient iterations in spectral stochastic finite element method, AIAA Journal, Technical note, Volume 52, No. 6, 1313-1316, 2014.

Ghosh D. Application of the random eigenvalue problem in forced response analysis of a linear stochastic structure, Archive of Applied Mechanics, Volume 83, 1341-1357, 2013.

Ghosh D and Ghanem R. An invariant subspace based approach to the random eigenvalue problem of systems with clustered spectrum, International Journal for Numerical Methods in Engineering, Volume 91, Number 4, 378- 396, 2012.

Ghosh D. Some interesting properties of the response covariance of stochastic linear dynamical systems, International Journal of Engineering Under Uncertainty: Hazards, Assessment and Mitigation, Volume 2, 141-149, 2010.

Ghosh D, Farhat C, and Avery P. A FETI-preconditioned conjugate gradient method for large-scale stochastic finite element problems, International Journal for Numerical Methods in Engineering, Volume 80, 914-931, 2009.

Ghosh D and Farhat C Strain and stress computations in stochastic finite element methods, International Journal for Numerical Methods in Engineering Volume 74, Issue 8, 1219-1239, 2008.

Ghosh D and Ghanem R Stochastic convergence acceleration through basis enrichment of polynomial chaos expansion, International Journal for Numerical Methods in Engineering Volume 73, Issue 2, 162-184, 2008.

Ghanem R and Ghosh D Efficient characterization of the random eigenvalue problem in a polynomial chaos decomposition, International Journal for Numerical Methods in Engineering Volume 72, Issue 4, 486-504, 2007.

Ghosh D, Ghanem R, and Red-Horse J Analysis of eigenvalues and modal interaction of stochastic systems, AIAA Journal, Volume 43, No. 10, pp. 2196-2201, 2005.

Book chapters

Gupta S and Ghosh D, Uncertainty quantification in structural engineering: current status and computational challenges, DOI: 10.1142/9789814730587_0005, Uncertainty Quantification in Computational Science: Theory and Application in Fluids and Structural Mechanics, World Scientific Publishing, ISBN-13: 978-9814730570, 2016.

Abhinav S, Ghosh D, and Manohar CS, Substructuring methods for finite element analysis, Encyclopedia of Earthquake Engineering, Springer, ISBN 978-3-642-35343-7, 3691-3704, 2015.

Conference

Sarkar K, Ganguli R, and Ghosh D, Random eigenvalue analysis for the free vibration of rotating beams using inverse problem approach, 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech Forum, (AIAA 2017-1985), Grapevine, Texas, USA, 2017.

Hossain Md. N and Ghosh D, Dominant mode identification in stochastic system, 8th ISSS National Conference on MEMS, Smart Materials, Structures and Systems, Indian Institute of Technology Kanpur, September 28-30, 2016.

Sarkar S and Ghosh D. Iterative solution of random eigenvalue problem in an SSFEM framework, SIAM Conference on Uncertainty Quantification (UQ16), Lausanne, Switzerland, April 5-8, 2016.

Pranesh S and Ghosh D. Cost reduction via domain simplification in the Karhunen-Loeve expansion, U.S. National Congress on Computational Mechanics (USNCCM), San Diego, USA, July 26-30, 2015.

Ghosh D and Suryawanshi A. A new tensor-based decomposition of spatiotemporal random processes, U.S. National Congress on Computational Mechanics (USNCCM), San Diego, USA, July 26-30, 2015.

Suryawanshi A and Ghosh D. Reliability based optimization in aeroelasticity using a PCE based surrogate model, Asian Conference on Mechanics of Functional Materials and Structures, Nara, Japan, October 10-13, 2014.

Krishnan A N M and Ghosh D. Effect of temperature, strain-rate and pre-stress on single-walled carbon nanotubes under axial loading, MIT Conference on Computational Fluid and Solid Mechanics, MIT, Cambridge, USA, June 12-14, 2013.

Krishnan A N M and Ghosh D. Stochastic buckling analysis of carbon nanotubes, International Conference on Structural Safety and Reliability (ICOSSAR), New York, USA, June 16-20, 2013.

Sarkar S and Ghosh D. Implementation issues for polynomial chaos characterization of the random eigenvalue problem, International Congress on Computational Mechanics and Simulation, Hyderabad, December 9-12, 2012.

Suryawanshi A and Ghosh D. Uncertainty quantification for 2D potential flow around a submerged body, International Congress on Computational Mechanics and Simulation, Hyderabad, December 9-12, 2012.

Krishnan A N M and Ghosh D. A probabilistic study of carbon nanotube buckling, International Congress on Computational Mechanics and Simulation, Hyderabad, December 9-12, 2012.

Krishnan A N M and Ghosh D. Variation of stress-strain ratio for single-walled carbon nanotubes under compression, Asian Conference on Multifunctional Materials and Structures, Delhi, December 5-8, 2012.

Suryawanshi A and Ghosh D. Uncertainty analysis in a static aeroelasticity problem, Asian Conference on Multifunctional Materials and Structures, Delhi, December 5-8, 2012.

Sarkar S and Ghosh D. Numerical challenges in solving the random eigenvalue problem using polynomial chaos expansion, Asia Pacific Network Centers for Research in Smart Structures Technology (ANCRiSST), Bangalore, July 27-28, 2012.

Ghosh D. Response analysis of a linear stochastic structural dynamic system using stochastic finite element method, International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM-2012), Howrah, January 4-6, 2012.

Choudhary S and Ghosh D. Efficient Computation of Karhunen-Loeve Decomposition, International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM-2012), Howrah, January 4-6, 2012.

Suryawanshi A and Ghosh D. Probabilistic studies on potential flow around submerged bodies (Poster) , IUTAM Symposium on Bluff Body Flows ( blubof 2011), Kanpur, Dec 12-16, 2011.

Ghosh D. Computational cost reduction via dominant subspace identification in stochastic elliptic PDEs, International Congress on Industrial and Applied Mathematics (ICIAM), Vancouver, Canada, July 18-22, 2011

Ghosh D. Bounds of Eigenvalues of Uncertain Systems, IISc Centenary International Conference on Aerospace Engineering and Exhibition (ICEAE'2009), Bangalore, May 18-22, 2009.

Ghosh D. On Covariance of Response of an Uncertain Linear Dynamical System", IISc Centenary International Conference on Aerospace Engineering and Exhibition (ICEAE'2009), Bangalore, May 18-22, 2009.

Ghosh D and Farhat C. Uncertainty quantification of large structures using domain decomposition, Inaugural International Conference of the ASCE Engineering Mechanics Institute (EM08), Minneapolis, Minnesota, May 18-21, 2008.

Ghosh D, Avery P and Farhat C. Uncertainty quantification of large-scale systems using domain decomposition, 9th U.S National Congress on Computational Mechanics, San Francisco, California, July 22-26, 2007.

Ghanem R and Ghosh D. An enrichment scheme for polynomial chaos expansion applied to random eigenvalue problem, ASME 2005 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, Long Beach, California, September 24-28, 2005.

Ghosh D and Ghanem R. Polynomial chaos enrichment for analyzing stochastic systems with clustered eigenvalues”, EURODYN 2005, Paris, France, September 4-7, 2005.

Ghosh D and Ghanem R. A new algorithm for solving the random eigenvalue problem using polynomial chaos expansion, 46th AIAA/ASME/ASCE/ AHS/ASC Structures, Structural Dynamics & Materials Conference, Austin, TX, April 18-21, 2005.

Ghosh D and Ghanem R. Random eigenvalue analysis of an airframe, 45th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, Palm Springs, CA, April 19 - 22, 2004.

Ghanem R and Ghosh D. Modal interaction of random dynamical systems, IMAC XXII, Dearborn, MI, January 26-29, 2004.

Ghosh D, Ghanem R and Petit C. Polynomial chaos representation of stochastic eigenmodes of complex structures, JANNAF 39th Combustion/27th Airbreathing Propulsion/21st Propulsion Systems Hazards/3rd Modeling and Simulation Joint Subcommittee Meeting, Colorado Springs, CO, December 1-5, 2003.

Ghosh D, Ghanem R and Petit C. Stochastic buckling of a joined wing, Stochastic Dynamics Conference, Hangzhou, China, May 26-28, 2003.

Ghanem R and Ghosh D. Eigenvalue Analysis of a Random Frame, EURODYN 2002, Munich, Germany, September 2-5, 2002.

Teaching

Introduction to Finite Elements
Computation is Structural Mechanics
Structural Dynamics
Nonlinear Structural Mechanics
Uncertainty Modelling and Analysis

Current PhD students

Srikara Pranesh
Md. Nurtaj Hossain
Gopika Ajith

Current masters students

Agnimitra Dasgupta
U Chandrasekhar
 

Former students

Soumyadipta Sarkar, PhD
Anup Suryawanshi, PhD
Anoop Krishnan, PhD
Santhosh Kumar Tutika, ME
Shalu Choudhary, MSc(Engg.)
Mohd. Ataullah Khan, ME
Subhayan De, ME (Jointly supervised by Prof. C S Manohar)
Madhav S Kumar, ME
Nurtaj Hossain, ME
Mriganka Roy, ME

Professional activities

Reviewer of: International Journal for Numerical Methods in Engineering, Journal of Computational Physics, Mathematical Reviews, Probabilistic Engineering Mechanics, SIAM Journal on Scientific Computing, Shock and Vibration, Computational Mechanics, Journal of Sound and Vibration, Mechanics of Advanced Materials and Structures.