Satchi
Venkataraman, Ph. D.Assistant
Professor
Aerospace
Engineering & Engineering Mechanics
San Diego, CA 92182-1308
e-mail: satchi@mail.sdsu.edu
Tel:
619-644-3457
Fax:
619-594-0933
|
Institution |
Year |
Degree |
Major Field |
|
|
1999 |
Ph.D. |
Engineering
Mechanics |
|
|
1993 |
M.S. |
Mechanical
Engineering |
|
|
1991 |
B.E. |
Mechanical
Engineering |
Modeling, Analysis and Optimization of Cylindrical
Stiffened Panels for RLV Structures
Advisor: Dr. Raphael T. Haftka
Assistant Professor, Dept. of
Aerospace Engineering, San Diego State University (SDSU), (August 2002 to
present). Aerospace Structures, Composite
Materials, Design Optimization, Reliability and Biomechanics.
Research Engineer, AeroChem
Corporation,
Visiting Assistant Professor,
Dept of Aerospace Engineering, Mechanics and Engineering Science,
Postdoctoral Research
Associate,
Visiting Researcher,
Graduate Research Assistant, University
of Florida, Gainesville, FL (January 1995 to December 1999), Structural Analysis and Optimization,
Approximation and Surrogate Modelings for Design Optimization, Reusable Launch
Vehicle Design.
Summer Intern, Ford Research
Labs,
Graduate Teaching and
Research Assistant, Clemson University, Clemson, SC, (May 1993 to April 1994), Fabrication and testing of composite
specimens, Creep testing, taught FORTRAN programming to freshman engineering
students.
Research Assistant,
|
Course Name |
Term |
Institution |
|
Introduction to FORTRAN
Programming |
F93 & S94. |
|
|
Statics (EM 200) |
S04, F04, S05, F05, Su06 |
SDSU |
|
Mechanics of Materials (EGM
3520) |
S02 |
|
|
Aerospace Structural
Dynamics (AE410) |
F06 |
SDSU |
|
Aerospace Structural
Analysis (AE 310) |
S03, S04, S05 & S 06 |
SDSU |
|
Finite Element Methods (ME
610, EM 510) |
F03, F05 |
SDSU |
|
Theory of Elasticity (EM
621) |
F02, F03, F04, & S06 |
SDSU |
|
Theory of Elastic
Stability (EM 724) |
F 04, F06 |
SDSU |
|
Engr. Design: Analytical
Methods (ME 614) |
S03 and S05 |
SDSU |
|
Structural Optimization (EM
600) |
S03, & S05 |
SDSU |
S – Spring semester, F – Fall
semester, Su – Summer semester
JP 1. Salas,
P. and Venkataraman, S., Controlling Failure Using Optimum Structural Fuses for
Robust and Predictable Progressive Failure,” submitted for review to Structural &Multidisciplinary
Optimization, Sep 2006.
JP 2. Venkataraman, S., and Salas, P.,
Optimization of Composite Laminates for Robust and Predictable Progressive
Failure Response,” in print AIAA Journal,
Dec 2005.
JP 3. Venkataraman
S., “Reliability optimization using probabilistic sufficiency factor and
correction response surface,” Engineering
Optimization, Vol. 38, No. 6, pp. 671-685, 2006.
JP 4. Venkataraman
S. and Haftka R. T., “Structural Optimization: What has
JP 5. Zhu,
H., Sankar, B. V., Haftka, R. T., Venkataraman, S., Blosser, M. L.,
“Optimization of Functionally Graded Metallic Foam Insulation under Transient
Heat Transfer Conditions,” Structural
& Multidisciplinary Optimization, Vol. 28, No. 5, November, pp 349-355,
2004.
JP 6. Venkataraman,
S., Zhu, H., Haftka, R. T., Sankar, B. V. and Blosser, M., “Optimum Design of a
Functionally Graded Metallic Foam Thermal Insulation,” AIAA Journal, Vol. 42, No. 11, pp 2355-2363, 2004.
JP 7. Zhu,
H., Sankar, B. V., Haftka, R. T., Venkataraman, S., and Blosser, M., Minimum
Mass Design of Insulation Made of Functionally Graded Material,” Journal of Spacecraft and Rockets, Vol.
40, No. 2, 2004, pp. 467-469
JP 8. Venkataraman,
S., and Sankar, B.V., “Analysis of
JP 9. Qu,
X., Venkataraman, S., Haftka, R. T. and Johnson, T. F., “Reliability, Weight,
and Cost Tradeoffs in the Design of Composite Laminates for Cryogenic
Environments,” AIAA Journal, Vol. 41,
No. 10, 2003, pp. 2029-2036.
JP 10. Huang
J., Venkataraman S., Haftka R.T. and Rapoff A.J., “Optimization of Axisymmetric
Distribution of Elastic Modulus Around a Hole for Increased Strength,” Structural
& Multidisciplinary Optimization, Vol. 26, pp 1-12, 2003.
JP 11. Rapoff,
A. J., Johnson, W. and Venkataraman, “Transverse Plane Shear Test Fixture for
Total Knee Systems,” Experimental
Techniques. Vol. 27, Iss. 3, pp. 37-39, 2003.
JP 12. Venkataraman,
S., Lamberti, L., Haftka, R. T., and Johnson, T. F., “Challenges in comparing
numerical solutions for optimum weights of stiffened shells,” Journal of Spacecraft and Rockets, Vol.
40 (2), pp. 183-192, 2003.
JP 13. Venkataraman,
S., Haftka, R.T., and Rapoff, A.J.," Structural Optimization Using
Biological Variables to Understand How Bones Design Holes,” Structural &
Multidisciplinary Optimization,
Vol. 25, pp. 19-34, 2003.
JP 14. Lamberti,
L., Venkataraman, S., Haftka, R. T., and Johnson, T. F., “Preliminary Design
Optimization of Stiffened Panels Using Approximate Analysis Models,” International
Journal of Numerical Methods in Engineering, Vol. 57, pp. 1351-1380, 2003.
JP 15. Venkataraman,
Haftka, R. T., and Johnson, T. F., “Maximal Errors due to Use of Equivalent
Properties for Sublaminates,” AIAA Journal, Vol. 39, No. 2, Feb. 2001.
IP 1. Marhadi,
K. and Venkataraman, S., Effect of Competing Failures and Load Redistributions
on Progressive Failure Predictability in Truss Structures,” in preparation for Computers and Structures, Oct 2006.
IP 2. Salas,
P., and Venkataraman, S., “Optimization of Laminates for Predictable Failure in
the Presence Model Uncertainties and Variability,” in preparation for Composites
Part B (Engineering), Nov 2006.
IP 3. Venkataraman,
S. and Sankar, B. V., “Analysis of a plate with axisymmetric functionally
graded properties around a circular hole,” in preparation for Composites
Part B, Dec 2006.
IP 4. Venkataraman
and Haftka R. T., “Current practices in design optimization of laminated
composites structures: a review,” in preparation for Applied Mechanics
Review, June 2007.
CP 1. Marhadi,
K. and Venkataraman, S., “Tailoring Load Redistributions and Failure Sequences
of Progressive Collapse in Redundant Truss Structures,” Submitted to the 48th AIAA/ ASME/ ASCE/ AHS/ ASC Structures,
Structural Dynamics and Materials Conference, Waikiki, Hawaii, April 2007.
CP 2. Salas,
P., and Venkataraman, S., “Including Model Uncertainties in Design of Composite
Structures for Predictable Progressive Failure,” Submitted to the 48th AIAA/ ASME/ ASCE/ AHS/ ASC Structures,
Structural Dynamics and Materials Conference,
CP 3. Wesley,
R., and Venkataraman, S., “Progressive Sampling for Response Surface Fitting
Using Method of Dividing Rectangles (DIRECT),” Submitted
to the 48th AIAA/ ASME/ ASCE/ AHS/ ASC
Structures, Structural Dynamics and Materials Conference, Waikiki, Hawaii,
April 2007.
CP 4. Venkataraman,
S., Mahadevan, S., Strack, W. C., Nagpal. V., and Pai, S. S., “Calculating
Confidence Intervals for Reliability to Quantify Effect of Distribution
Parameter Uncertainty,” Submitted to the
48th AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics and Materials
Conference, Waikiki, Hawaii, April 2007.
CP 5. Venkataraman, S., Strack, W. C., Nagpal. V., and Pai, S. S., “Incorporating
Distribution Parameter Uncertainty in Reliability Calculation,” Proceedings of the Annual Reliability &
Maintainability Symposium 2007,
CP 6. Salas,
P., and Venkataraman, S., “Incorporating Model Uncertainties and Variability in
Optimization of Laminates for Predictable Failure,” AIAA-2006-7040, Proceedings of the 11th AIAA/ ISSMO
Multidisciplinary Analysis and Optimization Conference,
CP 7. Marhadi,
K. and Venkataraman, S., Effect of Competing Failures and Load Redistributions
on Progressive Failure Predictability in Truss Structures,” AIAA-2006-7101, Proceedings of the 11th AIAA/ ISSMO
Multidisciplinary Analysis and Optimization Conference, Portsmouth,
Virginia, September 2006.
CP 8. Venkataraman,
S. and Salas, P., “Optimum Design of Structural Fuses for Tailoring Robust and
Predictable Progressive Failure,” submitted
to 47th AIAA/ASME/ASCE/AHS/ASC
Structures, Structural Dynamics, and Materials Conference, Newport, Rhode
Island, April 2006.
CP 9. Venkataraman,
S. and Salas, P., “Optimization of Performance and Failure Predictability in
Composite Laminates Undergoing Progressive Failure,” AIAA-2005-2225 Proceedings of the 46th AIAA/ ASME/
ASCE/ AHS/ ASC Structures, Structural Dynamics, and Materials Conference,
CP 10. S. Venkataraman, “Reliability Optimization of
Structures Using Probabilistic Sufficiency Factor and Correction Response
Surface, AIAA Paper 2004-2033,
Proceedings of the 45th AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural
Dynamics, and Materials Conference, Palm Springs, California, April 2004.
CP 11. S.
Venkataraman, and B. Sankar, “Elasticity Analysis and Optimization of a
Functionally Graded Plate with Hole,” AIAA
Paper 2003-1466, Proceedings of the 44th AIAA/ASME/ASCE/AHS/ASC Structures,
Structural Dynamics, and Materials Conference, Norfolk Virginia, April
2003.
CP 12. W.
Wang and A. Kurdila, and Venkataraman,
S., “Shape Optimization of Electrodes for Piezoelectric Actuators – Static
Analysis,” AIAA Paper 2003-1806, Proceedings
of the 44th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and
Materials Conference, Norfolk, Virginia, April 2003.
CP 13. Zhu, H., Sankar B. V., Venkataraman,
S., and Haftka, R. T., “Optimization of a Functionally Graded Metallic Foam
Insulation Under Transient Heat Transfer Conditions,” AIAA Paper 2003-1531, Proceedings of 44th AIAA/ASME/ASCE/AHS/ASC
Structures, Structural Dynamics, and Materials Conference, Norfolk,
Virginia, April 2003.
CP 14. Venkataraman
S. and Haftka R. T., “Structural Optimization: What has
CP 15. B.
Sankar, N. Apetre and S. Venkataraman , Indentation of a Sandwich Beam with
Functionally Graded Core, AIAA Paper
2002-1683, Proceedings of the 43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural
Dynamics, and Materials Conference, Denver Colorado, April 2002, 11 pages.
CP 16. S.
Buskirk,
CP 17. J.
Huang, S. Venkataraman, A. Rapoff and R. Haftka, , “Optimization Design of
Inhomogeneous Isotropic Plates with Holes by Mimicking Bones,” AIAA Paper 2002-1236, Proceedings of the
43rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials
Conference, Denver Colorado, April, 2002.
CP 18. Zhu,
H, Sankar, B. V., Haftka R. T., and Venkataraman, S. “Minimum Mass Design of
Insulation Made of Functionally Graded Material,” AIAA Paper 2002-1425 Proceedings of
43rd AIAA/ ASME/ ASCE/ AHS/ASC Structures, Structural Dynamics, and
Materials Conference, Denver Colorado, April, 2002.
CP 19. Grosset,
L., Venkataraman, S., and Haftka, R. T., “Probability-based genetic algorithm
for composite laminate optimization,” Proceedings
of the 43rd AIAA/ASME ASCE/AHS/ASC Structures, Structural Dynamics
and Materials Conference,
CP 20. Venkataraman,
S., Zhu, Z., Sankar, B. V., and Haftka, R. T., “Optimum Design of a
Functionally Graded Metallic Foam Thermal Insulation,” Proceedings of the American Society of Composites-16th Annual Technical
Conference, September, 2001,
CP 21. Venkataraman,
S., Haftka, R. T., and Rapoff, A. J.," Structural Optimization Using
Biological Variables to Understand How Bones Design Holes,” Proceedings of the
CP 22. Venkataraman,
S., and Sankar, B. V., “Analysis of Sandwich Beams with a Functionally Graded
Core, AIAA Paper 2001-1281, Proceedings
of the 42nd AIAA/ASME ASCE/AHS/ASC Structures, Structural Dynamics
and Materials Conference, Seattle, WA, Apr. 16-19, 2001.
CP 23. Qu,
X., Venkataraman, S., Haftka, R. T., and Johnson, T. F., “Reliability, Weight,
and Cost Tradeoffs in the Design of Composite Laminates for Cryogenic
Environments,” AIAA Paper 2001-1327,
Proceedings of the 42nd AIAA/ ASME/ ASCE/ AHS/ ASC Structures,
Structural Dynamics, and Materials Conference, Seattle, WA, Apr. 16-19,
2001.
CP 24. Qu, X.,
Venkataraman, S., Haftka, R. T., and Johnson, T. F., "Reliability based
Optimization of Composite Laminates for Cryogenic Environments," AIAA Paper 2000-4760, Proceedings of 8th
AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization,
Long Beach, CA, Sept. 6-8, 2000.
CP 25. Qu,
X., Venkataraman, S., Haftka, R. T., and Johnson, T. F., "Response Surface
Options for Reliability based Optimization of Composite Laminates" Proceedings of the 8th ASCE Special
Conference on Probabilistic Mechanics and Structural Reliability, June
2000.
CP 26. Lamberti,
L., Venkataraman, S., and Haftka, R. T., “Comparison of Preliminary Designs of
Stiffened Panels Optimized Using PANDA2 for Reusable Launch Vehicle Propellant
Tanks,” AIAA Paper 2000-1657, Proceedings
of 41st AIAA/ ASME/ ASCE/ AHS/ ASC Structures, Structural Dynamics,
and Materials Conference, Atlanta, GA, Apr. 3-6, 2000.
CP 27. Venkataraman,
S., and Haftka, R.T., " Optimization of Composite Panels - a review,
" Proceedings of the American
Society of Composites- 14th Annual Technical Conference, Fairborn, OH, pp.
479-488, 1999.
CP 28. Venkataraman,
S., Haftka, R. T. and Johnson, T. F., "Design of Shell Structures for
Buckling Using Correction Response Surface Approximations,” AIAA Paper 98-4855, Proceedings of the 7th
AIAA/USAF/NASA/ISSMO Symposium on Multidisciplinary Analysis and Optimization
(Part. 2),
CP 29. Venkataraman,
S., Haftka, R. T. and Johnson, T. F., "Use of Equivalent Laminate
Properties in the Optimization of Stiffened Composite Panels," Proceedings of the 12th Annual Technical
Conference, American Society of Composites,
CP 30. Venkataraman,
S., and Haftka, R. T., "Integration of Finite Element Analysis and Panel
Design Program," AIAA Paper 97-1052.
Proceedings of the 38th AIAA/ ASME/ ASCE/ AHS/ ASC Structures,
Structural Dynamics, and Materials Conference,
1.
Rapoff AJ, Rinaldi RG, Johnson WM,
Venkataraman S, Daegling DJ. Heterogeneous anisotropic elastic properties in a
Macaca fascicularis mandible. Proceedings
of the 72nd Annual Meeting of the American Association of Physical
Anthropologists, Tempe, Arizona, 23-26 April 2003.
2.
Daegling DJ, Marinescu R,
Venkataraman S, Rapoff AJ. Effects of structural heterogeneity and anisotropy
on finite element model predictions for a mandible of Macaca fascicularis. Proceedings of the 72nd Annual Meeting of
the American Association of Physical Anthropologists, Tempe, Arizona, 23-26
April 2003. (published in the American Journal of Physical Anthropology:
83-83, Suppl. 36.)
3.
Rapoff AJ, Fontanel O, Venkataraman
S. Heterogeneous orthotropic elasticity about a nutrient foramen via
microindentation. Proceedings of the ASME
Summer Bioengineering Conference,
4.
Venkataraman, S., Zu, H., Haftka, R.
T. and Sankar, B.V., Optimum Design of functionally graded metallic foam
insulation for reentry vehicle thermal protection systems, Proceedings of the Ninth International Conference on Composites in
Engineering,
5.
Venkataraman, S., and Haftka, R.T.,
“Response Surfaces for Predicting Load Redistribution in Multi-level Structural
Optimizations,” Proceedings of the 20th
International Congress of the International Union of Theoretical and Applied
Mechanics (IUTAM), Chicago, Illinois, August 27 – September 2, 2000.
6.
Venkataraman, S., Haftka, R. T.,
Roux, W. and Harrison, P., "Comparison of NASTRAN and PANDA2 for the
Optimization of Stiffened Panels,” Proceedings
of the Second International Conference on Composites in Engineering,
Reliability Estimation and Optimization with
Statistical Uncertainty, NASA SBIR
2004 Phase-II proposal in collaboration with N&R Engineering, Dec
2005-Dec2007.
Calculating confidence bounds for probability of
failure using statistical data obtained from limited testing, NASA Glenn Research Center (through N& R
Engineering), Jun 2005 – Aug 2005.
Structural Health Monitoring of Deployed Space
Structures, Grant-in-Aid
Award, SDSU Foundation, Jan 2005- July 2006.
Optimization fpr Predictbale and Robust Failure, Research, Scholarship and Creative Activity Award,
SDSU Foundation, Jan - June 2006.
Load redistribution in multi-level coordination in optimization
of complex aerospace structures,
Northrop Grumman Corporation, Oct 2004- Oct 2005.
Damage Identification in Large Periodic Lattice
Structures Having Local and Global Imperfections- undergraduate student research
grants, Sponsor: California Space
Grant Consortium, Oct 2004 – Sep 2005.
Analysis Models for Calibration of High Emissivity
Coatings, Space Micro Inc,
Development of Design Optimization Methods for Large
Scale Structures, Northrop Grumman
Corporation, Oct 2003- Oct 2004.
Development of Multi-Fidelity Analysis and
High-Accuracy Surrogate Models for Reliability-Based Optimization, Research, Scholarship and Creative
Activity Award 2003. San Diego State University, January – June 2004.
Structural Design for
Performance and Predictability via Optimization of Failure Sequences, Research, Scholarship, and
Creative Activity (RSCA) Award, San Diego State University, 2002-2003.
Structural Design for
Performance and Predictability via Optimization of Failure Sequences, Faculty Grant-In-Aid Award,
San Diego State University Foundation, 2002-2003.
Design for stress
concentrations near holes via biomimetics, Principal Investigator, (CO-PI’s: R. T. Haftka and A. J. Rapoff, University
of Florida), Phase-II Small Business Innovation Research (SBIR) grant funded by
NASA, AeroChem Corporation, January 2001 to January 2003.
Biomimetics Based Design
of Damage Tolerant Airframe Panels, Principal
Investigator (CO-PI’s R. T. Haftka
and A. J. Rapoff), University of Florida, Phase-I Small Business Innovation
Research (SBIR) grant funded by NASA, AeroChem Corporation, Jan 2000 to June
2000.
Combined Thermal and
Structural Optimization of Functionally Graded Tile, Co-Prinicipal Investigator, (CO-PI’s R. T. Haftka and B. V. Sankar, University
of Florida) funded by the Thermal Structures and Metals Branch, NASA Langley Research Center, March 2001-Dec 2001.
Understanding Load Redistributions and Failure
Sequences of Redundant Frame Structures to Tailor Alternate Load Paths that
Provide Robust Progressive Failure, submitted
for SGER (small grant for exploratory research), CMS Division, Structural
Systems and Hazards Mitigation of Structures, National Science Foundation($57821).
Oct 2006-Oct 2007, Status: Pending.
Optimum tailoring of multi-scale failure events and
alternate load paths for robust and predictable failure of fail-safe composite
airframe structures; NASA Aeronautics
Research Mission Directorate, Jan 2007-Dec 2009, ($194,577); Status:
Pending.
Peter Seyforth; BS Mechanical
Engineering – May 2004 2007, (Design Engineer, Vangaurd Composites).
Eduardo Velazquez; BS
Aerospace Engineering 2005, recipient of Aerospace Engineering Speer Scholarship,
2004)- (currently enrolled as doctoral student at UCSD)
Joshua Rivera; BS Aerospace
Engineering 2006, recipient of Aerospace Engineering Speer Scholarship, 2004)
(currently enrolled for a master’s degree at SDSU)
Roya Yazandifar; BS Civil Engineering
2006 (currently enrolled for a master’s degree at SDSU, and working as an Structural
Engineer at CalTrans)
Cecilia Larossa BS Aerospace
Engineering - anticipated in May 2007 (recipient of SAMPE scholarship,
Aerospace Engineering Speer Scholarship, ARCS Scholarship, NASA Summer Research
Internship, NASA Langley Research Center, 2006)..
Eric Lundgren; BS Mechanical
Engineering – anticipated graduation May 2007, (recipient of NASA Summer
Research Internships at
Pablo Salas MS Aerospace Engineering 2005 (Recipient or
runner-up award in the CSU wide Student Research paper Contest, 2006. Currently
enrolled as doctoral student in the SDSU- UCSD Joint Doctoral Program)
Kun Marhadi PhD. in Computational Science (graduation
anticipated 2008-2009) (currently doctoral student in the
Himaja Jani MS Aerospace Engineering 2005 (Engineering, Qualcomm Corp.)
Guy Watanabe MS Aerospace Engineering –anticipated
graduation in Dec 2006 (Design engineer with Northrop Grumman)
Rafay Navaid MS Aerospace Engineering –anticipated
graduation in Dec 2007 (Test Eengineer with Goodrich Aerostructures)