Selected Publications

  1. Zhao, W., Harrach, M., Kapania, R. K., Acar, P., "Thermo-Mechanical Analysis of Residual Stresses and Distortions of Models Fabricated Using Additive Manufacturing," AIAA SciTech forum 2022, San Diego & Virtual, AIAA 2022-1631, DOI: 10.2514/6.2022-1631

  2. Singh, K., Zhao, W., Kapania, R. K., “An Optimization Framework for Curvilinearly Stiffened Composite Pressure Vessels and Pipes,” Advances in Computational Design, An International Journal, Vol. 6, No.1, 2021, DOI: 10.12989/acd.2021.6.1.15

  3. Zhao, W. and Kapania, R. K. “Skin-Stringers Assembly using Radial Basis Functions for Curvilinearly Stiffened Panels,” AIAA Journal, Vol. 59, No. 3, pp. 1125-1133, 2021, DOI: 10.2514/1.J059364

  4. Zhao, W., Miglani, J., Desai, S., Kapania, R. K., Schetz, J. A., Aris, A. and Panwar, S. S., “Structural and Aeroelastic Design, Analysis, and Experiments of Inflatable Airborne Wings,” AIAA SciTech 2021, January, 2021, Virtual Event, AIAA 2021-1817, [DOI:10.2514/6.2021-1817]

  5. Zhao, W., Gupta, R., Kapania, R. K. and Schmidt, D. K., "Fuel Weight Minimization for Large N+3 Composite Transports with Multiple Control Surfaces," 2020 AIAA SciTech Forum, Jan 07-10, 2020, AIAA 2020-0663 [DOI: 10.2514/6.2020-0663]

Journal Papers

2022

[J14] Zhao, W. and Kapania, R. K., “Buckling Analysis and Optimization of Stiffened Variable Angle Tow Laminates with A Cut-out Considering Manufacturing Constraints,” Journal of Composite Science, Vol. 6, No. 3, pp. 80, 2022, DOI: 10.3390/jcs6030080

[J13] Borwankar, P., Zhao, W., Kapania, R. K. and Bansal, M., “Two-level Weight Optimization of Composite Laminates using Integer Programming,” AIAA Journal, 2022, DOI: 10.2514/1.J061560

2021

[J12] Singh, K., Zhao, W., Kapania, R. K., “An Optimization Framework for Curvilinearly Stiffened Composite Pressure Vessels and Pipes,” Advances in Computational Design, An International Journal, Vol. 6, No.1, 2021, DOI: 10.12989/acd.2021.6.1.15

[J11] Zhao, W. and Kapania, R. K. “Skin-Stringers Assembly using Radial Basis Functions for Curvilinearly Stiffened Panels,” AIAA Journal, Vol. 59, No. 3, pp. 1125-1133, 2021, DOI: 10.2514/1.J059364

2020

[J10] Gupta, R., Zhao, W. and Kapania, R. K., “Controllability Gramian as the Control Design Objective in Aircraft MDAO using Curvilinear Spars and Ribs,” AIAA Journal, 2020, DOI: 10.2514/1.J059102

[J9] Zhao, W. and Kapania, R. K., "Actuator Energy and Drag Minimizations of Blended-Wing-Body with Variable Camber Continuous Trailing-edge Flaps'', Engineering Optimization, Vol. 52, No. 9, pp. 1561-1587, 2020, DOI:10.1080/0305215X.2019.1660776 [preprint][code][PDF]

2019

[J8] Zhao, W., Gupta, A., Miglani, J., Regan, C. D., Kapania, R. K. and Seiler, P. J., "Component Data Assisted Finite Element Model Updating of Composite Flying-wing Aircraft using Multi-level Optimization,'' Aerospace Science and Technology, 2019, DOI: 10.1016/j.ast.2019.105486

[J7] Zhao, W. and Kapania, R. K., "Bilevel Programming Optimization of Composite Flying-wing with Curvilinear Spars and Ribs,'' AIAA Journal, Vol. 57, No. 6, pp.2594–2608, 2019, DOI: 10.2514/1.J057892 [preprint][code][PDF]

[J6] Zhao, W. and Kapania, R. K., "Prestressed Vibration of Stiffened Variable Angle Tow Laminated Plate,'' AIAA Journal, Vol. 57, No. 6, pp.2575–2593, 2019, DOI: 10.2514/1.J057719 [preprint][code][PDF]

2018

[J5] Zhao,W., Singh, K. A, and Kapania, R. K., "Thermal Buckling Analysis and Optimization of Curvilinearly Stiffened Plates with Variable Angle Tow Laminates," AIAA Journal of Spacecraft and Rockets , DOI: 10.2514/1.A34378, 2018 [preprint][code][PDF]

[J4] Singh, K., Zhao, W. , Jrad, M. and Kapania, R. K., "Hybrid Optimization of Curvilinearly Stiffened Shells using Parallel Processing, '' AIAA Journal of Aircraft, Vol. 56, No. 3, pp. 1068–1079, 2018, DOI:10.2514/1.C035069 [preprint][code][PDF]

2017

[J3] Zhao, W. and Kapania, R. K. "Vibrational Analysis of Curvilinearly Stiffened Composite Panels Subjected to In-plane Loads'' AIAA Journal, Vol. 55, No. 3, pp. 981-997, 2017, DOI: 10.2514/1.J055047 [preprint][code][PDF]

2016

[J2] Sheets, K., Wang, J., Zhao,W., Kapania, R. K. and Nain, A. S., "Nanonet Force Microscopy for Measuring Cell Forces,'' Biophysical Journal , Vol. 111, No. 1, 2016, pp. 197-207,[preprint][code][PDF]

[J1] Zhao, W. and Kapania, R. K. "Buckling Analysis of Unitized Curvilinearly Stiffened Composite Panels, '' Composite Structures, Vol. 135, 2016, pp. 365-382, DOI:10.1016/j.compstruct.2015.09.041 [preprint][code][PDF]

Conference Proceedings

2022

[C27] Zhao, W., Harrach, M., Kapania, R. K., Acar, P., "Thermo-Mechanical Analysis of Residual Stresses and Distortions of Models Fabricated Using Additive Manufacturing," AIAA SciTech forum 2022, San Diego & Virtual, AIAA 2022-1631, DOI: 10.2514/6.2022-1631

[C26] Panwar, S.S., Gupta, R., Aris, A., Nam, T., Miglani, J., Zhao, W., Kapania, R. K., "3D-Photogrammetric Modal Testing and Data Analysis of a Cantilevered Inflatable Wing," AIAA SciTech forum 2022, San Diego & Virtual, AIAA 2022-1513, DOI: 10.2514/6.2022-1513

2021

[C25] Miglani, J., Zhao, W., Kapania, R. K., Panwar, S., Gupta, R. and Aris, A., "System Identification for Modal and Flutter Analysis of an Inflatable Wing, " 13th International Workshop on Structural Health Monitoring, Standford, CA, 2021

[C24] Sanmugadas, V., Gupta, R., Zhao, W., Kapania, R. and Schmidt, D., “Effect of Aeroelastic Tailoring of Composite Wing Skin Laminates on Controllability of Aircraft,” 2021 AIAA AVIATION Forum, Virtual Event, AIAA 2021-3084, DOI:10.2514/6.2021-3084

[C23] Zhao, W., Miglani, J., Desai, S., Kapania, R. K., Schetz, J. A., Aris, A. and Panwar, S. S., “Structural and Aeroelastic Design, Analysis, and Experiments of Inflatable Airborne Wings,” AIAA SciTech 2021, January, 2021, Virtual Event, AIAA 2021-1817, DOI:10.2514/6.2021-1817

[C22] Miglani, J., Zhao, W., Sanmugadas, V., Desai, S., Schetz, J. A. and Kapania, R. K., “Design and Experiments of Aluminum Flat Plate and Expanded Polystyrene Foam Airfoil Flutter Test Articles,” AIAA SciTech 2021, January, 2021, Virtual Event, AIAA 2021-14977, DOI:10.2514/6.2021-1497

[C21] Borwankar, P., Zhao, W., Kapania, R. K. and Bansal, M. “Two-level Weight Optimization of Composite Laminates using Integer Programming,” AIAA SciTech 2021, January, 2021, Virtual Event, AIAA 2021-1966, DOI:10.2514/6.2021-1966

2020

[C20] Zhao, W., Gupta, R., Kapania, R. K. and Schmidt, D. K., "Fuel Weight Minimization for Large N+3 Composite Transports with Multiple Control Surfaces ," 2020 AIAA SciTech Forum , Jan 07-10, 2020, AIAA 2020-0663, DOI: 10.2514/6.2020-0663

[C19] Gupta, R., Zhao, W., Kapania, R. K. and Schmidt, D. K., "Incorporating Flight Dynamics and Control Criteria into MDAO of Composite Aircraft," 2020 AIAA SciTech Forum , Jan 07-10, 2020, AIAA 2020-1966, DOI: 10.2514/6.2020-1966

2019

[C18] Zhao, W. and Kapania, R. K., “Buckling Analysis and Optimization of Stiffened Varying-Angle-Tow Laminates with Manufacturing Constraints,” Proceedings of the American Society for Composites Thirty-fourth (34th) Technical Conference, GA, Sept., 2019, DOI: 10.12783/asc34/31329

[C17] Gupta, R., Zhao, W. and Kapania, R. K., "Investigation of Controllability Gramian as Control Objective in MDAO Framework," AIAA Aviation 2019, June 17-21, Dallas, TX, 2019, AIAA 2019-3550, DOI: 10.2514/6.2019-3550

[C16] Deshpande, R., Zhao, W., Jrad, M., and Kapania, R. K., "Effect of Centrifugal Stiffening on the Natural Frequencies of a Flexible Drone in Roll Maneuvers," AIAA SciTech 2019, Jan 7-11, 2019, San Diego, CA, AIAA 2019-0761, DOI: 10.2514/6.2019-0761

[C15] Zhao, W., Gupta, A., Miglani, J., Regan, D. C., Kapania, R. K., and Seiler, P. J., "Finite Element Model Updating of Composite Flying-wing Aircraft using Global/Local Optimization," AIAA Atmosphere Flight Mechanics Conference, AIAA SciTech 2019, Jan 7-11, 2019, San Diego, CA, AIAA 2019-1814, DOI: 10.2514/6.2019-1814 (Invited paper)

2018

[C14] Zhao, W., Singh, K. and Kapania, R. K., "Thermal-mechanical Buckling of Curvilinearly Stiffened Variable Angle Tow Laminated Panels,'' AIAA Space Forum 2018, Sept 17-19, 2018, Orlando, FL, AIAA 2018-5165, DOI: 10.2514/6.2018-5165

[C13] Jrad, M., Zhao, W., Kapania, R. K. and Schmidt, D. K., "Elastic Axis Determination and Extraction of Vibration Mode Shapes of a Light Weight Composite Aircraft, '' Multidisciplinary Analysis and Optimization Conference, AIAA Aviation 2018, June, 2018, AIAA 2018-5165, DOI: 10.2514/6.2018-3429

[C12] Zhao, W. and Kapania, R. K., “Multiobjective Optimization of Composite Flying-wings with SpaRibs and Multiple Control Surfaces,” 2018 Multidisciplinary Analysis and Optimization Conference, 2018 AIAA Aviation and Aeronautics Forum and Exposition, 2018, Atlanta, Georgia, AIAA 2018-3434, DOI: 10.2514/6.2018-3424

[C11] Zhao, W. and Kapania, R. K., “BLP Optimization of Composite Flying-wing with SpaRibs and Multiple Control Surfaces,” 2018 AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech Forum, Kissimmee, Florida, AIAA 2018-2150, 2018, DOI: 10.2514/6.2018-2150

2017

[C10] Zhao, W. and Kapania, R. K., "Static Aeroelastic Optimization of Aircraft Wings with Multiple Surfaces,'' 18th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference, AIAA Aviation Forum, Denver, Colorado, June, 2017, AIAA 2017-4320, DOI: 10.2514/6.2017-4320

[C9] Zhao, W., Jrad, M., Gupta, R. and Kapania, R. K., “Multidisciplinary Design, Analysis and Optimization of Performance Adaptive Aeroelastic Wings,” AIAA Atmosphere Flight Mechanics Conference, AIAA SciTech, Grapevine, TX, 2017, AIAA 2017-1392, DOI: 10.2514/6.2017-1392 (This work on mAEWing2 design has been featured in AIAA Aerospace America 2017 Year in Review)

[C8] Singh, K., Zhao, W., Kapania, R. K., “An Optimization Framework for Curvilinearly Stiffened Composite Pressure Vessels and Pipes,” Proceedings of ASME 2017 Pressure Vessels and Piping Conference, Waikoloa, Hawaii, USA, 2017, DOI: 10.1115/PVP2017-65469

[C7] Zhao, W., Muthirevula, N., Kapania, R. K., Gupta, A., Regan, D. C. and Seiler, P. J., “A Subcomponent-based Finite Element Model Updating for a Composite Flying-wing Aircraft,” AIAA Atmosphere Flight Mechanics Conference, AIAA SciTech, Grapevine, TX, 2017, AIAA-2017-1393, DOI: 10.2514/6.2017-1393

[C6] Singh, K., Zhao, W. and Kapania, R. K., “Optimal Design of Curvilinearly Stiffened Shells,” 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, Grapevine, TX, 2017, AIAA 2017-1830, DOI: 10.2514/6.2017-1830

[C5] Gupta, A., Zhao, W., Regan, C. D., Seiler, P., and Kapania, R. K., Identification of Symmetrical Structureswith Fabrication and Damage Induced Asymmetry. In: Conte J., Astroza R., Benzoni G., Feltrin G., LohK., Moaveni B. (eds) Experimental Vibration Analysis for Civil Structures. EVACES 2017, pp. 683–693, Vol. 5. Springer, Cham

2016

[C4] Zhao, W. and Kapania, R. K., “Vibrational Analysis of Unitized Curvilinearly Stiffened Composite Panels Subjected to In-plane Loads,” 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA Science and Technology Forum and Exposition, 2016, AIAA 2016-1500, DOI: 10.2514/6.2016-1500

[C3] Schmidt, D., Zhao, W. and Kapania, R. K., “Flight-Dynamics and Flutter Analyses of a Flying-Wing Research Drone – Invited,” AIAA Atmospheric Flight Mechanics Conference, AIAA SciTech 2016, San Diego, CA, AIAA 2016-1748, DOI: 10.2514/6.2016-1748 (Invited paper)

2015

[C2] Zhao, W., Kapania, R. K., Schetz, J. A., Coggin, J. M., Allen, T. J. and Sexton, B. W. “Nonlinear Aeroelastic Analysis of SUGAR Truss-braced Wing Wind-tunnel Model Under In-plane Loads,” 56th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference. AIAA SciTech,2015, Kissimmee, Florida, AIAA 2015-1173, DOI: 10.2514/6.2015-1173

2014

[C1] Coggin, J. M., Kapania, R. K., Zhao, W., Schetz, J. A. and Hodigere-Siddaramaiah, V. “Nonlinear Aeroelastic Analysis of a Truss Braced Wing Wind Tunnel Model,” AIAA SciTech 2014, 55th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, National Harbor, Maryland, AIAA 2014-0335, DOI: 10.2514/6.2014-0335