TEZESWI P. TADEPALLI, Ph.D, E.I.T
____________________________________________________________________________________________________________________________________________________________________________
Areas of expertise include structural dynamics, nonlinear finite element analysis, composite materials, vibration testing, photo elastic testing, high strain rate SHPB testing, shock testing, micro-mechanics and non destructive evaluation
EDUCATION
Ph.D., University Of Mississippi
Civil Engineering, concentration in structural mechanics (2010).
Dissertation: Performance Assessment Methodology and Multi-hazard Evaluation of Blast Resistance of RC Frame Structures Designed in Moderate Seismic Zones Based on FE Simulations.
M.S., University Of Mississippi
Civil Engineering, concentration in structural mechanics & earthquake engineering (2003).
Thesis: Interactive Computational Tools for Simulating Linear Dynamic Response and Nonlinear Quasi-Static Damage in Composite Structures
B.E., Karnataka University
Civil Engineering, First Class with Distinction, (2000).
research EXPERIENCE
Research Assistant Professor, March 2013 onwards, Department of Mechanical Engineering, University of Mississippi
Experimental characterization and analytical modeling of high-strain rate dynamic response of composite materials and structures. Development of novel computational modeling methodologies for predicting the multi-scale behavior of cementitious materials and armored glass under ballistic and blast loading conditions.
Responsibilities include-
Performing high-strain rate experiments with a two-stage shock tube and Split-Hopkinson Bar apparatus for characterizing the dynamic response of advanced materials and structures.
Experimental and analytical characterization of energy dissipation and high strain rate dynamic response of Vertically Aligned Carbon Nano Tubes.
Molecular dynamics simulation of glass.
Active submission of grant proposals.
Teaching responsibilities include the undergraduate Structures and Dynamics laboratory (ME416) and Introductory Mechanics course (ENGR309).
Participation in departmental ABET accreditation process.
Managing the regular operations, inventory and supervision of graduate students at the Blast and Impact Dynamics Lab.
Mentoring and training of graduate students (MS-1, PhDs-3) in computational and experimental research methods.
Post Doctoral Research Associate, Oct. 2009- March 2013, Department of Mechanical Engineering, University of Mississippi
Conducting experimental and computational research in characterizing high strain rate and shock response of sandwich composite panels for use in blast and impact resistant composite super-structures of Navy ships. Additional responsibilities include-
Coordinated the commissioning and regular operations of a Split Hopkinson Bar system (compression and tension) and two-stage Shock Tube at the Blast and Impact Dynamics Lab.
Performed high-strain rate experiments with a two-stage shock tube and Split-Hopkinson Bar apparatus for characterizing the dynamic response of advanced materials and structures
Actively participated in grant proposal submissions.
Taught undergraduate mechanics courses and guest lectured graduate courses. Participation in departmental ABET accreditation process.
Conducted research in multi-scale modeling of cementitious materials.
Mentored and trained graduate students (MS Minority, PhD International) in computational and experimental methods as well as operation of high strain rate and quasi-static material testing equipment.
Project Engineer, Oct. 2008 to Sept. 2009, NEES Cyber infrastructure Center, SDSC, UC San Diego
Responsibilities included coordinating between NEESit and Earthquake Engineering researchers at various experimental facilities across the nation and delivery of technology tools and infrastructure to enable researchers to remotely participate in experiments, organize data, and collaborate with colleagues. Additional activities-
Conducted training and outreach activities for the user community and provided feedback on software usability to software developers.
Provided domain expertise as structural engineer so that software products are better tailored to the needs of the community.
Initiated and actively participated in proposals for multi-disciplinary projects and built collaborative teams between faculty and researchers at UM and UCSD.
Skill sets: business analysis, awareness of research community requirements and software development cycle.
Graduate Research Assistant, Aug. 2001 to Jul. 2003 and Jan. 2005 to Dec. 2007, Center for Community Earthquake Preparedness, Department of Civil Engineering, University of Mississippi
Research work in structural dynamics, finite element modeling, composite materials, earthquake engineering, blast response of RC structures and multi-hazard mitigation.
Developed Matlab code for analysis of multi-degree-of -freedom linear elastic structures subjected to earthquake and shock loading using implicit and explicit direct integration and modal analysis; Elasto-plastic analysis of single-degree-of-freedom structures subjected to shock loading, 2005
Constructed portable shake table for earthquake simulation as part of educational outreach program, at the University of Mississippi, 2005
Conducted loss assessments for various earthquake and wind hazard scenarios using HAZUS-MH and involved in conducting survey for populating the HAZUS building stock database, as part of the Natural Hazard Mitigation Plan (DRU) for the University of Mississippi, 2005
Developed a Matlab-based FEA code for nonlinear analysis of laminated composite frame structures with user defined input for arbitrary material multi-linear hardening stress-strain curves. Sponsored by NASA EpsCor, 2003
INDUSTRIAL EXPERIENCE
Senior Engineer, Jan. 2008 to Sept. 2008, Hinman Consulting Engineers, Inc., San Francisco, CA
Blast vulnerability assessments, hazard mitigation and retrofit design for various facilities and infrastructure, technical support to engineers, proposal writing, technical innovation and development of analysis procedures.
DB Nuclear Power Plant, Project Engineer.Performed blast vulnerability assessment of underground structure. The goal of the analysis was to locate potential vulnerabilities in the system. Flooding in an underground tunnel subsequent to the blast spall and breach event was determined. Analysis of the potential flooding consequences for the worst-case pipe breach in the interdiction room, including the residual water height was conducted. Analyzed the internal air-blast from a charge and the resultant gas overpressure in the interdiction room, including survivability of the interdiction team, 2008
UN Curtainwall Assessment-Peer Review, New York, NY., Project Engineer. Performed peer review of curtain wall blast resistant design for the UN-Complex Capital Master Plan, New York. Reviewed designs and calculations for accuracy, consistency, and adequacy in accordance with set criteria, 2008
Shockey Precast NNCF-Warrenton, Virginia, Project Engineer. Performed blast analysis of structure consisting of precast pre-stressed beams, RC flat slab roof, precast concrete columns, shallow foundation on spread footing connected with grade beams. Performed design of precast exterior wall panel, pre-stressed double-tee-beams and pre-stressed inverted girders and determined connection capacities under air-blast loading, 2008
Transamerica Building, San Francisco, CA., Project Engineer. Performed blast analysis of high-rise structure consisting of composite steel and concrete members for a large vehicular threat, 2008.
COPT UFC Compliance Studies, Building Assessments-Group2, Project Engineer. Project involved dynamic studies of roof and façade of existing building (19). The response of members in various pressure zones was analyzed. Recommendations were made for retrofit /upgrade of roofing members and curtain wall.
GSA Omaha Complex, Project Engineer. Project involved dynamic analysis of roof and pre-cast wall panels. Columns were checked for axial capacity and upgrades were recommended.
Determined blast pressure at a facility, for various weapons and weapon locations, using HCE blast.
Junior Consultant, Reynolds Engineering Consultants, Sept. 2000 to Jul. 2001, Hyderabad, India
Design of industrial steel structures and reinforced concrete multistory residential complexes, estimation, preparation of structural drawings and site inspection.
TEACHING EXPERIENCE
Instructor, Statics, ENGR 309, Spring 2010- 2013, Department of Mechanical Engineering, University of Mississippi (approx. 60-110 students/semester).
Topics -vector algebra, resultants, equilibrium, friction, centroids, inertia, trusses, machines and frames, beam shear and moments.
Preparation of dossier ensuring ABET accreditation.
ABET Outcomes Assessed: a, b, f, h
Co-Instructor, ME416, Structures & Dynamics Lab, Fall 2009- 2012, Department of Mechanical Engineering, University of Mississippi (approx. 25 students /semester) (Instructor: Prof. P.R.Mantena)
Delivering lectures, supervision of all graduate TAs assigned to the course, preparation of ABET dossier.
ABET Outcomes Assessed: a, b, c, d, e, h
Guest Lecturer, ME 524, Introduction to Materials Modeling, Fall 2010- 2012, Department of Mechanical Engineering, University of Mississippi. (Instructor: Prof. A.M. Rajendaran)
Topics-continuum mechanics, damage mechanics, and theory of plasticity. Lectured on stress and strain tensors, Eulerian and Lagrangian descriptions.
Guest Lecturer, ENGR 590, FEA-I, Spring 2010, Department of Civil and Environmental Engineering, University of Mississippi. (Instructor: Prof. Chris Mullen)
Lectured on Galerkin formulation of rod, beam and frame elements.
Teaching Assistant, ME416, Structures & Dynamics Lab, Fall 2005 & 2006, Department of Mechanical Engineering, University of Mississippi (25 students /semester) (Instructor: Prof. P.R.Mantena)
Conducted lab for structural and materials testing with data acquisition, including nondestructive testing, modal analysis and photo-elastic analysis.
Prepared and delivered 45 minute pre-lab lectures and exams. Graded assignments and exams.
Mentored and trained students in the use of finite element, vibration DAQ and general-purpose programming software.
Teaching Assistant, ASTR 103, Laboratory Physics and Astronomy, Aug. 2003 to Dec. 2004, Department of Physics and Astronomy, University of Mississippi (100 students /sem.) (Instructor: Prof. Tibor Torma)
Developed laboratory experiments and curriculum.
Handled lectures and labs for 4 sections
Maintained optical and image processing equipment for CCD Astronomy.
Held physics tutoring/help sessions twice weekly.
TECHNICAL SKILLS
Computer skills
Programming: MATLAB, FORTRAN
FEA: ABAQUS, PATRAN, SAP2000, AUTODYN
Molecular Dynamics: LAMMPS, VMD, Ovito
MODAL Analysis: ME-SCOPE
Blast Design: ATBLAST, WinGard,
GIS Based: HAZUS-MH, GIS ArcMap,
Solid Modeling: PRO-E, PRO-MECHANICA,
Miscellaneous: CCD-OPS, PCACOL, UNIX, IFs, PROSHAKE, SMSIM
Laboratory skills
Quasi-static Materials testing: EnduraTec SMART system, MTS 810 system
Structural Dynamics: Modal analysis, sinusoidal vibration, prescribed input vibration. Instrumentation including impact hammers (PCB), accelerometers (PCB, B&K), Siglab data acquisition system, dynamic signal analyzers (HP/Agilent), shaker (B&K), shaker controllers (HP), signal generators (HP/Agilent), stroboscope (Monarch), Signal conditioner (Vishay).
High strain rate testing: Compression/tensile Split Hopkinson Bar and Shock tube, photoelastic testing, strain indicator (Vishay Measurements Group).
Optical Data Acquisition: Keyence Optical Microscope, Shimadzu HPV-2 High Speed Camera, CCD Cameras, Astronomical Telescopes.
Training
Certified in Operational and Safety protocols of two-stage shock tube at UM, June, 2011.
Vishay Micro-Measurements, W65 Strain Gage Workshop, Hunstville, AL, Nov. 2010
ATC-20-1, Post Earthquake Safety Evaluation of Buildings, University of Memphis, February, 2007
Structural Design for Blast Effects, Pre-Congress Workshop, SEI 2006, St. Louis, IL , May 2006
Introduction to Arc GIS-II, MARIS Training Center, Jackson, MS, July 2005
Summer workshop program, Grid computing and its application in scientific data analysis, GriPhyN,
iVDGL, UT Brownsville, TX, June 2004
Summer workshop program, Gravitational Wave Detection and Analysis, CGWA, UT Brownsville, TX, June 2004
Basic Arcview Training, ESRI Course, Department of Geology, University of Mississippi, 2002
TECHNICAL PUBLICATIONS
Journal Articles
· M.M.Shahzamanian, T.Tadepalli, A.M.Rajendran, et al., Representative Volume Element Based Modeling Of Cementitious Materials, ASME-Journal of Engineering Materials andTechnology, 136(1),011007, Dec 09, 2013 (16 pages) doi: 10. 1115/1.4025916.
· P. Raju Mantena, Tezeswi Tadepalli, Brahmananda Pramanik, et al., Energy Dissipation and the High-Strain RateDynamic Response of Vertically Aligned Carbon Nanotube Ensembles Grown onSilicon Wafer Substrate, Journal of Nanomaterials, vol. 2013, Article ID259458, 7 pages, 2013. doi:10.1155/2013/259458
· T.Tadepalli, P.R. Mantena, Numerical and Experimental Blast Response Characterization of SandwichComposite Panels, Journal of SandwichStructures & Materials, 15(1)110-133, 2012
· Pramanik, B., Tadepalli, T., Mantena, P.R. Surface Fractal Analysis for Estimating the Fracture Energy Absorption of Nanoparticle Reinforced Composites. Materials 2012, 5, 922-936.
· M.M.Shahzamanian, T.Tadepalli, A.M.Rajendran, Micro-Mechanics Based Multi-Scale Simulation Of Heterogeneous Cementitious Materials, ASME-District F Early Career Technical Journal (ECTC), Vol. 11, 2012, pp-57-61, ISBN 978-1-4675-5170-0, Copyright 2012, The American Society of Mechanical Engineers Southeast District F, Three Park Avenue, New York, NY 10016
· T.Tadepalli, P.R.Mantena, Blast Response of Sandwich Composite Structural Panels, ASME-District F Early Career Technical Journal (ECTC), Vol. 10, 2011, pp-33-38, ISBN 978-1-4507-9223-3, Copyright 2011, The American Society of Mechanical Engineers Southeast District F, Three Park Avenue, New York, NY 10016
· T.Tadepalli, C.L. Mullen, Interactive computational tool for simulation of dynamic response and damage in composite structures, ASME-District F Early Career Technical Journal (ECTC), Vol. 9, 2010
· B.Pramanik, P.R.Mantena, T.Tadepalli, A.M. Rajendran, Indirect tensile characterization of graphite platlet reinforced vinyl ester nanocomposites at high strain-rate, (submitted to Polymer Testing)
· T.Tadepalli, B.Pramanik, P.Raju Mantena, Shock Analysis of Composite Laminates, (in preparation for submission to International Journal of Material Science)
· S. Marjanishvili, T.Tadepalli, Probability of Failure and Risk of Failure as Performance Criteria for Design of Structural Components Subjected to External Air-blast Loads (in preparation for submission to Open Journal of Structures)
Book Chapters
· Tezeswi Tadepalli and Chris Mullen, “Simplified Blast Simulation Procedure for Hazard Mitigation Planning”, Design Against Blast: Load Definition & Structural Response, S. Syngellakis, ed., WIT Press, 2013, 133-142 (ISBN: 978-1-84564-750-6, eISBN: 978-1-84564-751-3)
Patents
· US Patent Pending, UM# 8310, filed 06/1/2011.
International Conference Proceedings
· P. Raju. Mantena and Tezeswi Tadepalli Blast Response of Sandwich Composite Panels: Experiments and Simulations, International Congress on Computational Mechanics and Simulation (ICCMS), IIT Hyderabad, India, 10-12 December 2012.
· T.Tadepalli, P.R.Mantena, Computational Simulation and Experimental Characterization of Sandwich Composite Panels Subjected to Blast and Shock Loads, 26th ASC Technical Conference/ Second Joint US-Canada Conference on Composites (ASC2011), Montreal, Canada, 26-28 Sept. 2011.
· B. Pramanik, T.Tadepalli, and P. R. Mantena, Estimation of Fracture Energy Absorption Based on Fractal Surface Analysis of Nano-Composites Subjected to Low Velocity Impact, Proceedings of the Mid-South Annual Engineering and Science Conference (MAESC) 2011, Memphis, TN, USA, May 2011.
· P. Raju Mantena and Tezeswi Tadepalli, Blast, Shock and Impact Resistant Nano-reinforced Panels and Sandwich Composites, C022, Proceedings of the International Conference on Composites for 21st Century-Current & Future Trends, IISC Bangalore, India, Jan 2011
· Almagableh, S. Gupta, P.R Mantena, T. Tadepalli, Mechanical Response And Finite Element Simulations Of Vinyl Ester Nanocomposite Panels Under Shock And Quasi-Static Flexural Loading, Proceedings of the American Society For Composites 25th Annual Tech. Conference , Dayton, Ohio, USA, 2010
· C.Burchfield, T.Tadepalli, C.L. Mullen, Subsystem Instability Conditions in Steel Frames Associated with Extreme Lateral Loading, Proceedings of the 19th Analysis and Computation Specialty Conference, Structures Congress, Austin, TX, USA, May 2009
· ElGamal, A., Lelli V.E., Krishnan,S., Folwer,K., Tadepalli, T.P., NEESit: An IT Framework for Collaboration in Earthquake Engineering Research, Proceedings of the 12th International Conference on Civil, Structural and Environmental Computing, Madeira, Portugal, Sept. 2009
· S. Marjanishvili, T.Tadepalli, Probabilistic Failure Model for Structural Components Subjected to Air-blast Loads, Proceedings of the 10th International Conference on Structural Safety and Reliability, Osaka, Japan, 2009
· T.Tadepalli, C.L. Mullen, Vulnerability of Low Rise Buildings to External Blast Events: Collapse Potential Investigation, Proceedings of the Inaugural International Conference of the Engineering Mechanics Institute, Minneapolis, MN, USA, 2008
· T.Tadepalli, C.L. Mullen, Vulnerability of Low Rise Buildings to External Blast Events: Damage Mapping, EM08, Proceedings of the Inaugural International Conference of the Engineering Mechanics Institute, Minneapolis, MN, USA, 2008
· O’Daniel,J., Mullen, C.L.& Tadepalli,T., Blast Effects on Two-Story Concrete Frame Building, Proceedings of the Inaugural International Conference of the Engineering Mechanics Institute, Minneapolis, MN, USA, 2008
· Marjanishvili, S., Montalva, A., Tadepalli,T., Progressive Collapse As Implicit-Explicit Multi-Step Initial Condition Dynamic Analysis, Proceedings of the Inaugural International Conference of the Engineering Mechanics Institute, Minneapolis, MN, 2008
· T.Tadepalli, C.L.Mullen, Design Parameters Governing Post Damage Stability of Low Rise Reinforced Concrete Frame Structures Subjected to Extreme Loadings, Proceedings of the ASCE/SEI Structures Congress, Vancouver, Canada, 2008
· T.Tadepalli, C.L.Mullen, Performance Assessment of Blast Resistance for Multi-Hazard Mitigation of RC Frame Structures in Moderate Seismic Zones, Proceedings of the ASCE/SEI Structures Congress, Long Beach, California, USA, 2007
· T.Tadepalli, C.L.Mullen, Simplified blast simulation procedure for hazard mitigation planning, Proceedings of the Ninth International Conference on Structures Under Shock And Impact, Wessex Institute of Technology, Southampton, UK, 2006
Reports
· T.Tadepalli, Damian Stoddard, Steven Stewart and A.M.Rajendran, High Strain Rate Testing of Polyurea Using A Polycarbonate Compressive Split Hopkinson Pressure Bar System, Internal UM report, April, 2012.
· P.R.Mantena, T.Tadepalli, Shear Properties of Laminated Composite Specimens by ARCAN test method, Internal report submitted to Dr. C. Song (PI), Dept of Civil Engg., University of Mississippi, as part of ongoing DHS-SERRI Project #70023, Feb., 2011.
· P.R.Mantena, T.Tadepalli, Short beam shear behavior of Laminated Composite Specimens, Internal report submitted to Dr. C. Song (PI), Dept of Civil Engg., University of Mississippi, as part of ongoing DHS-SERRI Project #7002, March 2011.
· T.Tadepalli, End-to-End NEEScentral Data Repository: Hands on Tutorial, Online help manual for NEEScentral data repository, UCSD, Updated May 2009.
· T.Tadepalli, BAM: Theory & User’s Manuals, Internal report, Hinman Consulting Engineers, July 2008
FUNDING & GRANT RELATED EXPERIENCE
· Drafted a proposal as Co-PI with Prof. P.R Mantena (PI) and Prof. A.M. Rajendran (Co-PI), submitted to the DURIP-DoD program. The $250,000/- grant was approved and enabled the purchase of high speed camera equipment for the visualization and analysis of blast, shock, ballistic and impact dynamic events, 2013.
· Drafted a proposal as post-doc with Prof. P.R.Mantena (PI), submitted to ERDC-CERL, 2012.The grant was approved and provides $50,000/- over 1 year for conducting nano composite materials testing at high strain rates.
· Drafted a proposal as post-doc with Prof. A.M.Rajendran (PI) and Prof. P.R.Mantena (Co-PI) titled- Atomistic Modeling of Transparent Glass/Ceramic Armor Materials. The grant was approved by TARDEC-ARO and provides $200,000/- over two years, 2012.
· Drafted a proposal as post-doc with Prof. A.M.Rajendran (PI), Prof. .P.R.Mantena (Co-PI) and Prof. A.Al-Ostaz (Co-PI) titled- Nano to Continuum Multi-Scale Modeling Techniques and Analysis for Cementitious Materials under Dynamic Loading. The grant was approved by DoD HBCUs-PIRT and provides $540,000/- over 3 years, 2010.
· Drafted a proposal as post-doc with Prof. A.M. Rajendran (PI) titled- Energy-Governing Interfaces in Materials (EnGIM) for Energy Harvesting Application, part of a multi-university submittal to DOE-EpsCor, 2011.
· Initiated and drafted an NSF-CDI proposal as key personnel with Dr. Sriram Krishnan (PI), Prof. Steve McCabe (Co-PI), Prof. Chris Mullen (Co-PI), Prof. Tara Hutchinson (Co-PI). The proposed research envisioned an open source GIS-based multi-scale disaster planning and management framework that utilized a services oriented architecture and leveraged resources at the San Diego Supercomputing Center, 2009.
· Initiated and drafted a DHS-SBIR proposal as Senior Engineer (PI) with Dr. Shalva Marjanishvilli (Co-PI), Dr. Eve Hinman (Co-PI), Prof. Chris Mullen (Co-PI) and Prof. Al-Ostaz (Co-PI) titled- Engineered Building Materials: Infrastructure Protection and Damage Mitigation. The goal of the proposed research was to identify materials that can be used to construct and protect tunnels from explosive, kinetic or thermal attacks while protecting the structural integrity and improving the resilience of the target, 2008.
PATENTS
· US Patent Granted, UM# 8310, filed 06/1/2011.
PROFESSIONAL SERVICE & ACTIVITIES
Professional society membership
· American Society of Civil Engineers
· American Society of Mechanical Engineers
· American Society of Composites
· NEES
EIT-Michigan (2004). Will obtain P.E. licensure in state of permanent residence.
Honor society membership
Chi Epsilon
Reviewer
Journal of Composites-B
Journal of Composite Materials
Journal of Intelligent Material Systems and Structures
Journal of Vibration and Control
Journal of Sandwich Composites and Materials
ASME District-F ECTC Journal
Service to Institution/Outreach activities
· Track Chair, ASME District-F Early Career Technical Conference, 2012-2013
· Coordinating the upgrade of the ME Departmental website, 2013.
· Associate Editor, ASME District-F ECTC Journal, 2012-2013
· Invited Lecture-Introduction to Matlab, ASME UM Chapter, Oxford, MS , Nov. 2011
· Assistant Chief Proctor, NCEES, FE Exam, Oxford, MS, Oct. 2011-April 2013
· Session moderator, Session 4B, Nano-Technologies-II, MAESC2011, Memphis, TN, May 2011.
· Proctor, NCEES, FE Exam, Oxford, MS, Oct. 2010 & Apr. 2011,
· Mentor, NEESit, Graduate Summer Institute, 2009
· Mentor, UCSD/NEESit, Research Experiences for Undergraduates Program, 2009
· Student attendee, ASCE Committee on Performance of Structures During Construction, May 2006
· Introduction to Engineering, ENGR 100, University of Mississippi, 2005-2007& 2011 (5 semesters)
· Judge, Annual Region VII Science & Engineering Fair, University of Mississippi, 2003-2004/2011-2012
· Contributor, Mississippi Fraternal Order of Police, 2002-2004
· Volunteer, ASCE Adopt A Highway Program, 2001
Leadership positions
· Documentation lead, Hinman Consulting Engineers, 2008
· Graduate Representative, Engineering Advisory Board, University of Mississippi, 2006
· Secretary, India Association, University of Mississippi, 2001-2002
· Student Representative, Department of Civil Engineering, Karnataka University, 1998-1999
HONORS & AWARDS
· Mississippi Academy of Sciences– Best poster presentation award, 2005
· Scholarship & Meritorious Student Award, Center for Gravitational Wave Astronomy, UT Brownsville, June 2004
· Graduate Honors Fellowship, The University of Mississippi, August 2001-December 2003