1. Jung, D. and Gea, H. C., 2006, Design of Energy
Absorbing Structure using Topology Optimization with a Multi-material
Model, Structural and Multidisciplinary Optimization, 32, 3, pp.
251-257.

2. Gea, H. C. and Oza, K., 2006, Two-Level Approximation
Method for Reliability Based Design Optimization, International Journal
of Materials and Product Technology, 25, 1-3, pp. 99-111

3. Gea, H. C. and Oza, K., 2006, Prediction of Probabilistic
Design Models for Uncertainty Propagation, The 2006 SAE World
Congress,06M-462

4. Zheng, B. and Gea, H. C., 2006, Topology Optimization
Considering Gravitational and Centrifugal Forces, ASME Design
Engineering Technical Conferences, DETC 2006-99749

5. George, P., Gea, H. C. and Jaluria, Y., 2006,
Optimization of Chemical Vapor Deposition Process, ASME Design
Engineering Technical Conferences, DETC 2006-99748

6. Chang, C.-J. and Gea, H. C., 2006, An Efficient Method
for Detecting Packaging Supporting Space, ASME Design Engineering
Technical Conferences, DETC 2006-99747

7. Chang, C.-J. and Gea, H. C., 2006, Automated Design of
Thin-walled Packaging Structures, The 7th World Congress on
Computational Mechanics

8. Zheng, B. and Gea, H. C., 2006, Topology Optimization
with Design Dependent Body Forces, The 7th World Congress on
Computational Mechanics

9. Gea, H. C. and Kwon, J., 2005, Topology Synthesis for
Linkage Mechanism Design Using the Minimum Potential Energy Principle,
ASME Design Engineering Technical Conferences, DETC 2005-85587

10. Zheng, B. and Gea, H. C., 2005, Structural Topology Optimization
under Design Dependent Loads, ASME Design Engineering Technical
Conferences, DETC 2005-85605

11. Oza, K. and Gea, H. C., 2005, An Efficient Method for
Reliability-Based Design Optimization, SAE Transactions: Journal of
Materials & Manufacturing, 113, 5, pp. 493-499.

12. Jung, D. and Gea, H. C., 2004, Compliant Mechanism Design with
Non-linear Materials Using Topology Optimization, International Journal
of Mechanics and Materials in Design, 1: pp. 157-171.

13. Jung, D. and Gea, H. C., 2004,
*Topology Optimization Based
Design on Negative Poisson's Ratio Materials*, The Third
International Conference on Advances in Structural Engineering and
Mechanics.

14.
Gea, H. C., and Wang, B. P., 2004, *A Quasi-Second Order Method
for Reliability Based Design Optimization Using Complex Method for
Sensitivity Analysis*, The sixth World Congress on Computational
Mechanics, (WCCM VI)

15.
Oza, K, and Gea, H. C., 2004, *Two-Level Approximation Method
For Reliability Based Design Optimization*, ASME Design Engineering
Technical Conference, DETC 2004-57463

16.
Oza, K. and Gea, H. C., 2004, *An Efficient Method for
Reliability Based Design Optimization*, The 2004 SAE World Congress,
Reliability and Robust Design in Automotive Engineering, 2004-01-1125,
pp. 227- 234.

17.
Jung, D., Gea, H. C. and Yang, R.J., 2004, *Design of Negative
Poissons Ratio Materials Using Topology Optimization*, The 45^{th}
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials
Conference, AIAA-2004-1969.

18.
Chen, W., Liu, H., Gea, H. C., and Oza K., 2004,
*Reliability
Assessments Using Two-Level Approximation with Higher Order Derivatives*,
2004 NSF Design and Manufacturing Grantees & Research Conference.

19.
Jung, D. and Gea, H. C., 2003, *Design of Energy Absorbing
Structure Using Topology Optimization with a Multi-Material Model*,
ASME Design Engineering Technical Conference, DETC 2003, DAC-48774.

20.
Gea, H. C., Abramson, S., Knight, D., Kohn, J. and Zhang, D.,
2003, *Design and Modeling of Effective Material Properties of Bimodal
Porous Scaffolds*, Society for Biomaterials, 29^{th} Annual
Meeting.

21.
Liu, H, Chen, W., Sheng, J. and Gea, H. C., 2003, *Application
of The Sequential Optimization and Reliability Assessment Method to
Structural Design Problems*, ASME Design Engineering Technical
Conference, DETC 2003, DAC-48710.

22.
Chen, W. and Gea, H. C., 2003, *
Exploitation of FEM in Robustness and Reliability Assessments*,
2003 NSF Design and Manufacturing Grantees & Research Conference.

23.
Jung, D. and Gea, H. C., 2002, *Compliant Mechanism with
Non-linear Materials Using Topology Optimization*, ASME Design
Engineering Technical Conference, DETC 2002, DAC-34097.

24.
Yim, Soonkyu and Gea, H. C., 2002, *Local Polygon Reduction for
Voxel-Based Modeling*, ASME Design Engineering Technical Conference,
DETC 2002, CIE-34480.

25.
Gea, H. C., 2002, *Application of Regional Strain Energy in
Compliant Structure Design, *2002 NSF Design, Service and
Manufacturing Grantees & Research Conference.

26.
Luo, J. and Gea, H. C., 2001, *On Stress Based and Strain Based
Methods for Prediction of Optimal Orientation of Orthotropic Materials*,
The Sixth U.S. National Congress on Computational Mechanics.

27.
Yim, Soonkyu and Gea, H. C., 2001, *Shape Representation Using
Voxel-based Modeling with Wavelet Transform*, World Multiconference
on Systemics, Cybernetics and Informatics, Vol. VII, Computer Science
and Engineering: Part I, pp. 275-279.

29.
Gea, H. C. and Luo, J., 2001, *Design for Energy Absorption: A
Topology Optimization Approach*, ASME Design Engineering Technical
Conference, DETC2001 / DAC21060.

30.
Yim, Soonkyu and Gea, H. C., 2001, *Voxel-Based Modeling with
Multi-Resolution Wavelet Transform for Layered Manufacturing*, The
12th Annual Solid Freeform Fabrication (SFF) Symposium, August 6-8, 2001

31.
Gea, H. C., 2001, *Topology Optimization with Geometrical
Nonlinearities, *2001 NSF Design, Service and Manufacturing Grantees
& Research Conference.

32.
Gea, H. C. and Yim, Soonkyu, 2000, *Development of an
Image-based CAD using wavelet transform*, ASME Design Engineering
Technical Conference, DETC2000 / DAC-14262.

33.
Gea, H. C. and Luo, J., 2000, *Topology Optimization of
Structures with Geometrical Nonlinarities*, ASME Design Engineering
Technical Conference, DETC2000 / DAC-14266.

34.
Luo, J., Gea, H. C. and Yang, R.J., 2000, *Topology
Optimization for Crush Design*, the 8^{th} AIAA/NASA/USAF/ISSMO
Symposium on Multidisciplinary Analysis and Optimization, 2000-4770

35.
Gea, H. C., 2000, *Compliant Mechanism Design Using Topology
Optimization*, 2000 NSF Design and Manufacturing Research Conference.

36.
Gea, H. C and Kong, Q., 1999, *Non-linear Structural
Sensitivity Analysis of Total Strain Energy*, The Fourth Asia-Pacific
Conference on Computational Mechanics, Vol. 1, pp. 405-510.

37.
Kong, Q. and Gea, H. C., 1999, *Sensitivity Analysis for
Non-linear Structures*, ASME Design Engineering Technical Conference,
DETC99 / DAC-8616.

38.
Kong, Q. and Gea H. C., 1999*, Sensitivity Analysis of Strain
Energy for Non-linear Structures*, The 3^{rd} ISSMO / AIAA
World Congress of Structural and Multidisciplinary Optimization,
29-TOM2-4.

39.
Gea, H. C., 1999, *A Systematic Topology Optimization Approach
for Optimal Stiffener Design,* 1999 NSF Design and Manufacturing
Grantees Conference.

40.
Gea, H. C., 1999, *Topology Optimization Based Compliant
Mechanism Design*, OptiCON 99

41.
Luo, J. and Gea, H. C., 1998, *Optimal Stiffener Design of 3D
Shell/Plate Structures*, 1998 ASME Design Engineering Technical
Conference, DETC98 / DAC-5611.

42.
Gea, H. C. and Luo, J., 1998, *Automated Optimal Stiffener
Pattern Design*,* *7th AIAA/USAF/NASA/ISSMO Symposium on
Multidisciplinary Analysis and Optimization, AIAA-98-4815, Part 2, pp.
861-869.

43.
Chickermane, H., Gea, H. C., Yang, R. and Chuang, C., 1997, *Optimal Fastener Pattern Design Considering Bearing Loads*, 1997 ASME
Design Technical Conferences, DETC97 / DAC3770.

44.
Luo, J. and Gea, H. C., 1997, *Optimal Orientation of
Orthotropic Materials Using an Energy Based Method*, 1997 ASME Design
Technical Conferences, DETC97 / DAC3976.

45.
Gea, H. C., 1997, *Optimal Bead Orientation in Topology
Optimization*, ASME Summer Meeting, McNU 97, AMD-Vol. 227, Design
Optimization with Applications in Industry, pp. 13-22.

46.
Luo, J. and Gea, H. C., 1997, *Optimal Stiffener Design for
Interior Sound Reduction*, The X International Conference on Vehicle
Structural Mechanics and CAE, SAE-P-308, pp. 265 270.

47.
Gea, H. C., 1997, *Structural Design Using a Topology
Optimization Based Approach*, Optimization in Industry, Engineering
Foundation.

48.
Gea, H. C., 1997, Optimal Bead Orientation of Shells, 1997 NSF
Design and Manufacturing Grantees Conference.

49.
Luo, J. and Gea, H. C., 1996, *Modal Sensitivity Analysis of
Coupled Acoustic-Structural Systems*, ASME 1996 Design Engineering
Technical Conferences, 96-DETC / CIE-1629.

50.
Jain, S. and Gea, H. C., 1996, *Two-Dimensional Packing
Problems Using Genetic Algorithms*, ASME 1996 Design Engineering
Technical Conferences, 96-DETC / DAC-1466.

51.
Chickermane, H. and Gea, H. C., 1996, *Design of
Multi-Component Structural Systems for Optimal Layout Topology and Joint
Locations*, ASME 1996 Design Engineering Technical Conferences,
96-DETC / DAC-1467.

52.
Chickermane, H. and Gea, H. C., 1996, *Rivet Bearing Load
Considerations in the Design of Mechanical Repairs for Aging Aircraft*,
Proceedings of the FAA-NASA Symposium on the Continued Airworthiness of
Aircraft Structures, Vol. II, pp. 577 584.

53.
Gea, H. C. and Ramamurthy, R., 1996, *An Optimization Study on
Deep Drawing of Square Shells*, The Fourth International Conference
on Automation Technology, Vol. 1, pp. 465 471.

54.
Gea, H. C., 1996, *Topology Optimization of Shell Stiffeners
Using a Multi-Material Design Domain Method*, 1996 NSF Design and
Manufacturing Grantees Conference.

55.
Jain, S. and Gea, H. C., 1995, *PCB Layout Design Using a
Genetic Algorithm*, ASME Advances in Design Automation, Vol. 1, pp.
529 536.

56.
Fu, Y. and Gea, H. C., 1995, *Optimal Layout of Shell
Stiffeners with Frequency Design Considerations*, ASME Advances in
Design Automation, Vol. 1, pp. 241 248.

57.
Chickermane, H. and Gea, H. C., 1995, *Topology Optimization of
Mechanical Repairs for Aging Aircraft*, Computational Mechanics '95,
Vol. 1, pp. 223 228.

58.
Nagai, K., Igarashi, M., Gea, H. C. and Kikuchi, N., 1995, *Automotive Applications of Integrated Structural Optimization*,
Computational Mechanics '95, Vol. 2, pp. 2171 2176.

59.
Gea, H. C. and Fu, Y., 1995, *3-D Shell Topology Optimization
Using a Design Domain Method*, The IX International Conference on
Vehicle Structural Mechanics and CAE, SAE-P-290, pp. 245 252.

60.
Gea, H. C., 1994, *Topology Optimization: A New Micro-Structure
Based Design Domain Method*, ASME Advances in Design Automation, Vol.
2, pp. 283 290.

61.
Chickermane, H. and Gea, H. C., 1994, *Structural Optimization
Using A Generalized Convex Approximation*, ASME Advances in Design
Automation, Vol. 2, pp. 253 260.

62.
Chickermane, H. and Gea, H. C., 1994, *An Efficient Algorithm
for Structural Optimization Problems*, The 15^{th}
International Symposium on Mathematical Programming.

63.
Chirehdast, M., Gea, H. C., Kikuchi, N. and Papalambros, P.,
1994, *Structural Configuration Examples of an Integrated Optimal
Design Process*, ASME Advances in Design Automation, Vol. 2, pp. 283
290.

64.
Chirehdast, M., Gea, H. C., Kikuchi, N. and Papalambros, P., 1992,
*Further Advances in the Integrated Structural Optimization*, Fourth
Symposium on Multidisciplinary Analysis and Optimization.