2014 Publications
Aeronautical Sciences
B.S. Beck, “Grazing Incidence Modeling of a Metamaterial-Inspired Dual-Resonance Acoustic Liner,” in Proceedings of SPIE 9064, Health Monitoring of Structural and Biological Systems 2014, 9-13 March 2014, San Diego, CA, doi: 10.1117/12.2059834
P.D. Dunning, B.K. Stanford, and H.A. Kim, “Aerostructural Topology Optimization of the Internal Structure of a Common Research Model Wing,” Paper AIAA 2014-0634, in Proceedings of the 10th AIAA Multidisciplinary Design Optimization Conference, AIAA SciTech 2014, 13-17 January 2014, National Harbor, MD, doi: 10.2514/6.2014-0634
P.D. Dunning, B.K. Stanford, H.A. Kim, and C. Jutte, “A Study on the Application of Functionally Graded Materials for Aeroelastic Tailoring of a Plate-like Wing,” Paper AIAA 2014-0344, in Proceedings of the 55th AIAA/ASME/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech 2014, 13-17 January 2014, National Harbor, MD, doi: 10.2514/6.2014-0344
Li and S.K. Rallabhandi, “Inverse Design of Low-Boom Supersonic Concepts Using Reversed Equivalent Area Targets,” J. Aircraft, 51 (2014): 29-36, doi=10.2514/1.C031551
S.K. Rallabhandi, E.J. Nielsen, and B. Diskin, “Sonic Boom Mitigation through Aircraft Design and Adjoint Methodology,” J. Aircraft, 51 (2014): 502-510, doi: 10.2514/1.C032189
Spalt, T. Brooks, C. Bahr, L. Becker, D. Stead, and G. Plassman, “Calibrations of the NASA Langley 14- by 22-Foot Subsonic Tunnel in Acoustic Configuration,” Paper AIAA 2014-2344, in Proceedings of the 20th AIAA/CEAS Aeroacoustics Conference, AIAA Aviation 2014, 16-20 June 2014, Atlanta, GA, doi: 10.2514/6.2014-2344)
B. Stanford and P.D. Dunning, “Optimal Topology of Aircraft Rib and Spar Structures under Aeroelastic Loads,” Paper AIAA 2014-0633, in Proceedings of the 10th AIAA Multidisciplinary Design Optimization Conference, AIAA SciTech 2014, 13-17 January 2014, National Harbor, MD, doi: 10.2514/6.2014-0633
Aerospace Systems
L.G. Crespo, S.P. Kenny, and D. Giesy, “The NASA Langley Multidisciplinary Uncertainty Quantification Challenge,” Paper AIAA 2014-1347, in Proceedings of 16th AIAA Non-Deterministic Approaches Conference, AIAA SciTech 2014, 13-17 January 2014, National Harbor, MD, doi: 10.2514/mnda14
Dhanasar, W. Edmonson, F. Ferguson, and I.M. Blankson, “Small Satellite Solar Thermal Propulsion System Design: An Engineering Model,” Paper AIAA 2014-1729, in Proceedings of the 13th International Conference on Space Operations, AIAA SpaceOps 2014, 5-9 May 2014, Pasadena, CA, doi: 10.2514/6.2014-1729
Edmonson, J. Chenou, H. Herencia-Zapana, and N. Neogi, “Small Satellite Systems Design Methodology: A Formal and Agile Design Process,” in Proceedings of the 8th IEEE International Systems Conference, 31 March-3 April 2014, Ontario, Canada, doi: 10.1109/SysCon.2014.6819305
Glidden and A. Wilhite, “Performance of Existing Launch Vehicle Stages for Earth Departure with Refuel from Orbital Propellant Depot,”Paper AIAA 2014-4272, in Proceedings of the AIAA Space 2014 Conference and Exposition, AIAA Space 2014, 4-7 August 2014, San Diego, CA, doi: 10.2514/6.2014-4272
J.R. Skuza, Y. Park, H.J. Kim, S.T. Seaman, G.C. King, S.H. Choi, K.D. Song, H. Yoon, and K. Lee, “Feasibility study of green energy-powered dirigible transportation,” NASA/TM-2014-218241, May 2014
Wilhite and P. Chai, “Plan B for U.S. Human Space Exploration Program,”Paper AIAA 2014-4237, in Proceedings of the AIAA Space 2014 Conference and Exposition, AIAA Space 2014, 4-7 August 2014, San Diego, CA, doi: 10.2514/6.2014-4237
F.J. Xu, F.G. Yuan, J.Z. Hu, and Y.P. Qiu, “Miniature Horizontal Axis Wind Turbine System for Multipurpose Application,” Energy, 75 (2014): 216-224, doi: 10.1016/j.energy.2014.07.046
Airspace Management & Systems
E. Ancel, A.T. Shih, S.M. Jones, M.S. Reveley, J.T. Luxhøj, and J.K. Evans, “Predictive Safety Analytics: Inferring Aviation Accident Shaping Factors and Causation,” J. Risk Research, 18 (2014): 428-451, doi: 10.1080/13669877.2014.896402
Atmospheric Science
T.A. Blyakharchuk, N.M. Tchebakova, E.I. Parfenova, and A.J. Soja, “Potential Influence of the Late Holocene Climate on Settled Farming Versus Nomadic Cattle Herding in the Minusinsk Hollow, South-Central Siberia,” Environ. Res. Lett., 9 (2014): 065004, doi:10.1088/1748-9326/9/6/065004
Computational Sciences, Modeling, & Simulation
Arney and A. Wilhite, “Modeling Space System Architectures with Graph Theory,” J. Spacecraft and Rockets, 51 (2014): 1413-1429, doi: 10.2514/1.A32578
B.Y. Chen, S.T. Pinho, N.V. de Carvalho, P.M. Baiz, and T.E. Tay. “Floating Node Method for the Modeling of Discontinuities in Composites,” Engineering Fracture Mechanics, 127 (2014): 104-134, doi: 10.1016/j.engfracmech.2014.05.018
L.G. Crespo, E. Morelli, S.P. Kenny, and D. Giesy, “A Formal Approach to the Identification and Validation of Empirical Dynamic Models,” Paper AIAA 2014-0608, in Proceedings of the AIAA Guidance, Navigation, and Control Conference, AIAA SciTech 2014, 13–17 January 2014, National Harbor, MD, doi: 10.2514/6.2014-0608
N.V. de Carvalho, J.G. Ratcliffe, B.Y. Chen, S.T. Pinho, P.M. Baiz, and T.E. Tay. “Modeling Quasi-Static and Fatigue-Driven Delamination Migration,” Paper 661, in Proceedings of the American Society for Composites – 29th Technical Conference, 8-10 September 2014, San Diego, CA
N.V. de Carvalho and R. Krueger, “Combining the eXtended Finite Element Method with Virtual Crack Closure Technique and Cohesive Surface Modeling to Simulate Delamination Migration in Cross-ply Laminates,” in Proceedings of SIMULIA Community Conference, 19-22 May 2014, Providence, RI
E.L. Fasanella, K.E. Jackson, J.D. Littell, and M.D. Seal, “Simulating the Impact Response of Full-Scale Composite Airframe Structures,” in Proceedings of the 13th LS-DYNA Users Conference, 8-10 June 2014, Dearborn, MI
E.L. Fasanella, M.S. Annett, K.E. Jackson, and M.A. Polanco, “Simulating the Response of a Composite Honeycomb Energy Absorber: Part 2. Full-Scale Impact Testing,” J. Aerospace Engineering, 27 (2014): 437-441, doi: 10.1061/(ASCE)AS.1943-5525.0000358
K.E. Jackson, J.D. Littell, and E.L. Fasanella, “Simulating the Impact Response of Composite Airframe Components,” in Proceedings of the 13th LS-DYNA Users Conference, 3-5 June 2014, Dearborn, MI
K.E. Jackson, J.D. Littell, E.L. Fasanella, M.D. Seal, and M.S. Annett, “Impact Testing and Simulation of Composite Airframe Structures,” NASA/TM-2014-218169, February 2014.
K.E. Jackson, E.L. Fasanella, and M.A. Polanco, “Simulating the Response of a Composite Honeycomb Energy Absorber: Part 1. Dynamic Crushing of DEA Components and Multi-Terrain Impacts,” J. Aerospace Engineering, 27 (2014): 424-436, doi: 10.1061/(ASCE)AS.1943-5525.0000357
Jeyapaul, G. Coleman, and C. Rumsey, “Assessment of Higher-order RANS Closures in a Decelerated Planar Wall-bounded Turbulent Flow,” Paper AIAA 2014-2088, in Proceedings of the 44th AIAA Fluid Dynamics Conference, AIAA Aviation 2014, 16-20 June 2014, Atlanta, GA, doi: 10.2514/6.2014-208
Krueger, “Finite Element Analysis of Composite Joint Configurations with Gaps and Overlaps,” NASA/CR-2014-218284, June 2014
Krueger, “Create your own of benchmark examples and learn about delamination propagation prediction capabilities in commercial finite element codes and assess their performance,” Benchmark Magazine, pp. 10-18, April 2014
Mazaheri and H. Nishikawa, “First-Order Hyperbolic System Method for Time-Dependent Advection-Diffusion Problems,” NASA/TM-2014-218175, March 2014
Mazaheri and H. Nishikawa, “High-Order Residual-Distribution Hyperbolic Advection-Diffusion Schemes: 3rd, 4th, and 6th Order,” Paper AIAA-2014-2090, in Proceedings of the 7th AIAA Theoretical Fluid Mechanics Conference, AIAA Aviation 2014, 16-20 June 2014, Atlanta, GA, doi: 10.2514/6.2014-2090
Mazaheri and H. Nishikawa, “Very Efficient High-order Hyperbolic Schemes for Time-dependent Advection-Diffusion Problems: Third-, Fourth-, and Sixth-order,” Computers and Fluids, 102 (2014): 131-147, doi: 10.1016/j.compfluid.2014.06.020
H. Nishikawa and B. Diskin, “Evaluation of Multigrid Solutions for Turbulent Flows,” Paper AIAA 2014-0082, in Proceedings of the 52nd Aerospace Sciences Meeting, AIAA SciTech 2014, 13-17 January 2014, National Harbor, MD, doi: 10.2514/6.2014-0082
Nishikawa, “First, Second, and Third Order Finite-Volume Schemes for Navier-Stokes Equations,” Paper AIAA 2014-2091, in Proceedings of the 7th AIAA Theoretical Fluid Mechanics Conference, AIAA Aviation 2014, 16-20 June 2014, Atlanta, GA, 2014, doi: 10.2514/6.2014-2091
Nishikawa, “First, Second, and Third Order Finite-Volume Schemes for Advection-Diffusion,” J. Computational Physics, 273 (2014): 287-309, doi: 10.1016/j.jcp.2014.05.021
Nishikawa, P.L. Roe, and T.A. Eymann, “Active Flux for Diffusion,” Paper AIAA 2014-2092, in Proceedings of the 7th AIAA Theoretical Fluid Mechanics Conference, AIAA Aviation 2014, 16-20 June 2014, Atlanta, GA, doi: 10.2514/6.2014-2092
S.K. Rallabhandi, “Application of Adjoint Methodology to Supersonic Aircraft Design Using Reversed Equivalent Areas,” J. Aircraft, 51 (2014): 1873-1882, doi: 10.2514/1.C032518
Yamakov, D.H. Warner, R.J. Zamora, E. Saether, W.A. Curtin, and E.H. Glaessgen, “Investigation of Crack Tip Dislocation Emission in Aluminum using Multiscale Molecular Dynamics Simulation and Continuum Modeling,” J. Mech. Phys. Solids, 65 (2014): 35-53, doi:10.1016/j.jmps.2013.12.009
Materials Science & Structures
Bao K. Sun, N. Dhar, and M.C. Gupta, “Germanium p-n Junctions by Laser Doping for Photonics/Microelectronic Devices,” IEEE Photonics Technology Letters, 26 (2014): 1422-1425, doi: 10.1109/LPT.2014.2321500
C.A. Brice, J.A. Newman, V.K. Gupta, R.N. Shenoy, J.M. Baughman, and R.K. Bird, “Electron Beam Freeform Fabrication of Titanium Alloy Gradient Structures,” NASA/TM-2014-218508, July 2014
Z.X. Cao, F.G. Yuan, and L.H. Li, “A Super-Compact Metamaterial Absorber Cell in L-Band,” J. App. Phys., 115 (2014): 184904, doi: 10.1063/1.4875835
Z.X. Cao, F.G. Yuan, and L.H. Li, “An Automated Phase Correction Algorithm for Retrieving Permittivity and Permeability of Electromagnetic Metamaterials,” AIP Advances, 4 (2014): 067115, doi: 10.1063/1.4882155
Fletcher and M.C. Gupta, “Mechanical Properties of Elastomer Nanocomposites for Electromagnetic Interference Shielding Applications,” J. Composite Materials, 48 (2014): 1261-1276, doi: 10.1177/0021998313484952
J.D. Hochhalter, W.P. Lesser, J.A. Newman, E.H. Glaessgen, V.K. Gupta, V. Yamakov, S.R. Cornell, S.A. Willard, and G. Heber, “Coupling Damage-Sensing Particles to the Digital Twin Concept,” NASA/TM-2014-218257, June 2014
W.B. Huang, N. Zhang, F.G. Yuan, and X.N. Jiang, “Direct Measurement of Opening Mode Stress Intensity Factors Using Flexoelectric Strain Gradient Sensors,” Experimental Mechanics, 55 (2014): 313-320, doi: 10.1007/s11340-014-9914-y
S.R. Kwon, W. Huang, L. Shu, F.G. Yuan, J.P. Maria, X. Jiang, “Flexoelectricity in Barium Strontium Titanate Thin Film,” Appl. Phys. Letters, 105 (2014): 142904, http://dx.doi.org/10.1063/1.4898139
A. Noevere, “Methodology for Lightweight Design of Stiffened Skin in Advanced Aerospace Structures,” Paper 3616, in Proceedings of the 73rd Annual Society of Allied Weight Engineers International Conference on Mass Properties Engineering, 17-21 May 2014, Long Beach, CA
M.F. Pernice, J.G. Ratcliffe, N.V. de Carvalho, and S.R. Hallett, “Investigating delamination migration in multidirectional tape laminates,” in Proceedings of the 16th European Conference on Composite Materials, 22-26- June 2014, Seville, Spain
J.G. Ratcliffe and N.V. de Carvalho, “Investigating Delamination Migration in Composite Tape Laminates,” NASA/TM–2014-218289, October 2014
Scudiero, Y. Shen and M.C. Gupta, “Effect of Light Illumination and Temperature on P3HT Films, n-type Si, and ITO,” Appl. Surf. Sci., 292 (2014): 100-1006, doi: 10.1016/j.apsusc.2013.11.085
K. Sun, Y. Bao, and M.C. Gupta, “Laser Doping of Germanium for Photodetector Applications,” Proc. SPIE 9180, Laser Processing and Fabrication for Solar, Displays, and Optoelectronic Devices III, SPIE Optics+Photonics 2014, 17 – 21 August 2014, San Diego, CA, doi: 10.1117/12.2064283
Ungaro, G. Stephen, and M.C. Gupta, “Graded-index Structures for High-efficiency Solar Thermophotovoltaic Emitting Surfaces,” Optics Letters, 39 (2014): 5259-5262, doi: 10.1364/OL.39.005259
V.K. Varadan, L. Chen, J. Lee, N. Mathur, H.J. Kim, and S.H. Choi, “Thermoelectric Materials and Generators, Research and Applications,” Chapter 13 in High Temperature Materials and Mechanisms” Ed. Yoseph Bar-Cohen, CRC Press, 2014, London, ISBN 9781466566453
S.P. Wilkinson, E. Siochi, G. Sauti, T.B. Xu, M. Meador, and H. Guo, “Evaluation of Dielectric-Barrier-Discharge Actuator Substrate Materials,” Paper AIAA 2014-2810, in Proceedings of the 45th AIAA Plasmadynamics and Lasers Conference, AIAA Aviation 2014, 16-20 June 2014, Atlanta, GA, doi: 10.2514/6.2014-2810
C.J. Wohl, L.L. Foster, S. Applin, and J.W. Connell, “Synthesis and Surface Characterization of Copoly(imide alkyl ether)s Containing Pendant Fluoroalkyl Groups,” J. Appl. Polymer Sci., 132 (2014), doi: 10.1002/app.41538
Nanotechnology
P.O. Caffrey and M.C. Gupta, “Electrically Conducting Superhydrophobic Microtextured Carbon Nanotube Nanocomposite,” Appl. Surf. Sci., 314 (2014): 40-45, doi: 10.1016/j.apsusc.2014.06.055
Han, M.R. Funk, F. Shen, Y.C. Chen, Y. Li, C.J. Campbell, J. Dai, X. Yang, J.W. Kim, Y. Liao, J.W. Connell, V. Barone, Z. Chen, Y. Lin, and L. Hu, “Scalable Holey Graphene Synthesis and Dense Electrode Fabrication Toward High Performance Ultracapacitors,” ACS Nano, 8 (2014): 8255-8265, doi: 10.1021/nn502635y
J.H. Kang, E. J. Siochi, R.K. Penner, and T.L. Turner, “Enhanced Adhesive Strength between Shape Memory Polymer Nanocomposite and Titanium Alloy,” Composites Science and Technology, 96 (2014), doi: 10.1016/j.compscitech.2014.03.003
J.W. Kim, G. Sauti, E.J. Siochi, J.G. Smith, R.A. Wincheski, R.J. Cano, J.W. Connell, and K.E. Wise, “Toward High Performance Thermoset/Carbon Nanotube Sheet Nanocomposites via Resistive Heating Assisted Infiltration and Cure,” ACS Appl. Mater. & Interfaces, 6 (2014): 18832–18843, doi: 10.1021/am5046718
Liao, Z. Chen, J. W. Connell, C.C. Fay, C. Park, J.W. Kim, and Y. Lin, “Chemical Sharpening, Shortening, and Unzipping of Boron Nitride Nanotubes,” Adv. Func. Mater., 24 (2014), 4497–4506, doi: 10.1002/adfm.201400599
Lin, J. Kim, J.W. Connell, M. Lebrón-Colón, and E.J. Siochi, “Purification of Carbon Nanotube Sheets,” Adv. Eng. Mater., 17 (2014): 674–688, doi: 10.1002/adem.201400306
Thiagarajan, X. Wang, P. Bradford, Y.T. Zhu, and F.G. Yuan, “Stabilizing Carbon Nanotube Yarns using Chemical Vapor Infiltration,” Composites Science and Technology, 90 (2014): 82-87, doi: 10.1016/j.compscitech.2013.10.008
A.L. Tiano, C. Park, J.W. Lee, H.H. Luong, L.J. Gibbons, S.H. Chu, S.I. Applin, P. Gnoffo, S. Lowther, H.J. Kim, P.M. Danehy, J.A. Inman, S.B. Jones, J.H. Kang, G. Sauti, S.A. Thibeault, V. Yamakov, K.E. Wise, J. Su, and C.C. Fay, “Boron Nitride Nanotube: Synthesis and Applications,” in Proc. SPIE 9060, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2014, 10-12 March 2014, San Diego, California, doi: 10.1117/12.2045396
Yamakov, C. Park, J.H. Kang, K.E. Wise, and C. Fay, “Piezoelectric Molecular Dynamics Model for Boron Nitride Nanotubes,” Comp. Mat. Sci., 95 (2014): 362-370, doi:10.1016/j.commatsci.2014.07.047
Planetary & Space Sciences
J.M. Bell, J.H. Waite, J. Westlake, S.W. Bougher, A.J. Ridley, R. Perryman, and K. Mandt, “Developing a Self-Consistent Description of Titan’s Upper Atmosphere without Hydrodynamic Escape,” J. Geophys. Res.-Space Physics, 119 (2014): 4957–4972, doi: 10.1002/2014JA019781
Cohen, J.J. Drake, A. Glocer, C. Garraffo, K. Poppenhager, J.M. Bell, A.J. Ridley, and T.I. Gombosi. “Magnetospheric Structure and Atmospheric Joule Heating of Habitable Planets Orbiting M-dwarf Stars,” Astrophysical J., 790 (2014): 57, doi:10.1088/0004-637X/790/1/57
Gronoff, R. Maggiolo, C.S. Wedlund, C.J. Mertens, R.J. Norman, J.M. Bell, D. Bernard, C.J. Parkinson, and A. Vidal-Madjar, “Theoretical UV Absorption Spectra of Hydrodynamically Escaping O2/CO2-Rich Exoplanetary Atmospheres,” Astrophysical J., 788 (2014): 191, doi: 10.1088/0004-637X/788/2/191
J.H. Westlake, J.H. Waite, J.M. Bell, and R. Perryman, “Observed Decline in Titan’s Thermospheric Methane due to Solar Cycle Drivers,” J. Geophys. Res.-Space Physics (2014): 8586–8599, doi: 10.1002/2014JA020394
Sensors, Actuators, & Photovoltaics
Copp, “In-Flight Rotorcraft Blade Elastic Twist Sensor,” Smart Mater. Struct., 23 (2014): 045021, doi: 10.1088/0964-1726/23/4/045021
W.B. Huang, S.R. Kwon, S. Zhang, F.G. Yuan, and X. Jiang, “A Trapezoid Shape Flexoelectric Accelerometer,” J. Intelligent Material Systems and Structures, 25 (2014): 271-277, doi: 10.1177/1045389X13491021
D.A. McGillivray, R.L. Cravey, K.L. Dudley, E. Vedeler and M.C. Gupta, “Polarization Properties of a One Dimensional Metamaterial Lens,” Microwave and Optical Technology Letters, 56 (2014): 1218-22, doi: 10.1002/mop.28309
D.A. McGillivray, R.L. Cravey, K.L. Dudley, E. Vedeler and M.C. Gupta, “Polarization Properties of a 2-D Split Ring Resonator and Rod Type Metamaterial Lens,” Microwave and Optical Technology Letters, 56 (2014): 2146-50, doi: 10.1002/mop.28547
G.N. Szatkowski, K.L. Dudley, L.J. Smith, C. Wang, L.A. Ticatch “Open Circuit Resonant (SansEC) Sensor Technology for Lightning Mitigation and Damage Detection and Diagnosis for Composite Aircraft Applications,” NASA/TP-2014-218554, November 2014
Zhou, H. Li, and F.G. Yuan, “Guided Wave Generation, Sensing and Damage Detection using In-plane Shear Piezoelectric Wafers,” Smart Materials and Structures, 23 (2014): 015014, doi: 10.1088/0964-1726/23/1/015014
Signals, Controls & Adaptive Systems
Calogero, M. Frecker, A. Wissa,and J.E. Hubbard, Jr., “Optimization of a Bend-Twist-and-Sweep Compliant Mechanism,” Paper SMASIS2014-7518, in Proceedings of Smart Materials, Adaptive Structures and Intelligent Systems Conference 2014, 8-10 September 2014, Newport, RI, doi: 10.1115/SMASIS2014-7518
Chenou, A.C. Esterline, and W. Edmonson, “Capturing the Dynamism of Situation in the Flow of Information,” International Review on Computers and Software, 9 (2014): 300-309
S.J. Gill, M.H. Lowenberg, L.G. Crespo, S.A. Neild, B. Krauskopf, and G. Puyou, “Sensitivity of the Generic Transport Model Upset Dynamics to Time Delay,” Paper AIAA 2014-0611, in Proceedings of the AIAA Guidance, Navigation, and Control Conference, AIAA SciTech 2014, 13-17 January 2014, National Harbor, MD, doi: 10.2514/6.2014-0611
R. Radhakrishnan, W.W. Edmonson, F. Afghah, J. Chenou, R. Osorio, and Q. Zeng, “Optimal Multiple Access Protocol for Inter-satellite Communication in Small Satellite Systems,” in Proceedings of the Small Satellites Systems and Services (4S Symposium), 26-30 May 2014, Majorca, Spain
Radhakrishnan, Q. Zeng, and W.W. Edmonson, “The Performance Evaluation of Distributed Inter-satellite Communication Protocols for Cube-satellite Systems,” in Proceedings of the 4th Design, Development and Research Conference, 8-10 September 2014, Cape Town, South Africa
Tateo, B.S. Beck, M. Collet, M. Ouisse, K.A. Cunefare, and M.N. Ichchou, “Vibration Control of Plates Through a Periodic Array of Shunted Piezoelectric Patches with Negative Capacitance Circuits,” in Proceedings of SPIE 9057, Active and Passive Smart Structures and Integrated Systems 2014, 9-13 March 2014, San Diego, CA, doi: 10.1117/12.2046320
Tummala, A. Wissa, M. Frecker, and J.E. Hubbard, Jr., “Design and Optimization of a Contact Aided Compliant Mechanism for Passive Bending” J. Mechanisms Robotics, 6 (2014): 031013-031013-9, doi: 10.1115/1.4027702
Tummala, A. Wissa, M. Frecker, and J.E. Hubbard, Jr., “Design Optimization of a Twist Compliant Mechanism with Nonlinear Stiffness,” Smart Mater. Struct., 23 (2014): 104010, doi: 10.1088/0964-1726/23/10/104010
Unmanned Aerospace Systems
A. Wissa, J.E. Hubbard, Jr., J. Calogero, and M. Frecker, “Stability Analysis of the Wing Leading Edge Spar of a Passively Morphing Ornithopter,” Paper SMASIS2014-7528, in Proceedings of Smart Materials, Adaptive Structures and Intelligent Systems Conference 2014, 8-10 September 2014, Newport, RI, doi: 10.1115/SMASIS2014-7528
Wissa, Y. Tummala, J.E. Hubbard, Jr., M. Frecker, and M. Northrup, “Inertial Effects Due to Passive Wing Morphing in Ornithopters,” Paper AIAA 2014-1123, in Proceedings of 22nd AIAA/ASME/AHS Adaptive Structures Conference, AIAA SciTech 2014, 13-17 January 2014, National Harbor, MD, doi: 10.2514/6.2014-1123