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All Publications

2023

  1. Ahmed S., Kopsaftopoulos F.P.. "Active Sensing Acousto-Ultrasound SHM via Stochastic Non-stationary Time Series Models," European Workshop on Structural Health Monitoring, pp. 256-266, Springer, Cham, 2023 [Publication, Abstract]
  2. Fan Y., , Kopsaftopoulos F.P.. "Damage State Estimation via Multi-fidelity Gaussian Process Regression Models for Active-Sensing Structure Health Monitoring," European Workshop on Structural Health Monitoring, pp. 267-276, Springer, Cham, 2023 [Publication, Abstract]

2022

  1. Drakoulas, G., Gortsas T., Kokkinos C., Kopsaftopoulos, F.P.. "A Machine Learning Framework for Reduced Order Modeling of Guided Waves Propagation," 13th International Congress on Mechanics HSTAM, 2022 [Publication, Abstract]
  2. Ahmed S., Kopsaftopoulos F.P.. "Statistical Active-Sensing Structural Health Monitoring via Stochastic Time-Varying Time Series Models," 2022 American Control Conference (ACC), pp. 3599-3606,  IEEE, 2022. [Publication, Abstract]
  3. Amer A., Kopsaftopoulos F.P.. "Statistical guided-waves-based structural health monitoring via stochastic non-parametric time series models," Structural Health Monitoring, Vol. 21(3), pp. 1139-1166, 2022 [Publication, Abstract]
  4. Ahmed S., Kopsaftopoulos F.P.. "Active sensing acousto-ultrasound SHM via stochastic time series models," Health Monitoring of Structural and Biological Systems XVI, Vol. 12048, pp. 358-366, SPIE, 2022. [Publication, Abstract]
  5. Dutta A., Wang J., Kopsaftopoulos F.P., Gandhi F. . "Rotor Fault Detection and Identification on Multicopter based on Statistical Data-driven Methods: Experimental Assessment via Flight Tests," Presented at the Vertical Flight Society’s 78th Annual Forum & Technology Display, Ft. Worth, Texas, USA, May, 2022. [Publication, Abstract]
  6. Ahmed S., Zhou P., Zager S., Kopsaftopoulos F.P.. "Stochastic State Awareness for Composite Aerostructures via Integrated Time-Series-based Local and Global Diagnostics," AIAA AVIATION 2022 Forum, pp. 4001, 2022 [Publication, Abstract]
  7. Kopsaftopoulos F.P., Chang F.-K. . "A dynamic data-driven stochastic state-awareness framework for the next generation of bio-inspired fly-by-feel aerospace vehicles," Handbook of Dynamic Data Driven Applications Systems. Springer, Cham, pp. 713-738, 2022. [Publication, Abstract]
  8. Dutta A., McKay ME., Kopsaftopoulos F.P., Gandhi F.. "Multicopter Fault Detection and Identification via Data-Driven Statistical Learning Methods," AIAA Journal, Vol. 60 (1), pp. 160-175, 2022. [Publication, Abstract]
  9. Dutta A., Niemiec R., Gandhi F., Kopsaftopoulos F.P.. "Time-series Assisted Machine Learning Framework for Probabilistic Rotor Fault Diagnosis on Multicopters under Varying Operating Conditions," AIAA SCITECH 2022 Forum, pp. 2083, January 2022. [Publication, Abstract]
  10. Ahmed S., Kopsaftopoulos F.P.. "Time-varying Identification of Guided Wave Propagation under Varying Temperature via Non-Stationary Time Series Models," arXiv preprint arXiv:2201.04721, 2022 [Publication, Abstract]
  11. Ahmed S., Kopsaftopoulos F.P.. "Stochastic Identification-based Active Sensing Acousto-Ultrasound SHM Using Stationary Time Series Models," arXiv preprint arXiv:2201.11233, 2022 [Publication, Abstract]

2021

  1. Bhaumik A., Dutta A., Kopsaftopoulos F.P., Varela C.. "Proving the Correctness of Multicopter Rotor Fault Detection and Identification Software," IEEE/AIAA 40th Digital Avionics Systems Conference (DASC), pp. 1-10, 2021 [Publication, Abstract]
  2. Cherian-Ashe R., Arumbakkam S., Amer A. and Kopsaftopoulos F.P.. "Investigation of damage size and orientation effects in active-sensing SHM via statistical non-parametric time series methods," AIAA 2021-0302.AIAA SciTech 2021 Forum, January 2021. [Publication, Abstract]
  3. Dutta A., Niemiec R., Kopsaftopoulos F.P., Gandhi F.. "Unified statistical framework for rotor fault diagnosis on a hexacopter via functionally pooled stochastic models," in the Proceedings of the Vertical Flight Society’s 77th Annual Forum & Technology Display, Virtual, May 10-14, 2021. [Abstract]
  4. Amer A., Kopsaftopoulos F.P.. "On leveraging network-wide information from hotspot sensor networks using Multi-output Gaussian Process regression models," in the Proceedings of the Vertical Flight Society’s 77th Annual Forum & Technology Display, Virtual, May 10-14, 2021. [Abstract]
  5. Yadav S.K., Mishra S., Kopsaftopoulos F.P., Chang F.-K.. "Reliability of crack quantification via acousto-ultrasound active-sensing structural health monitoring using surface-mounted PZT actuators/sensors," Structural Health Monitoring, Vol. 20(1), pp. 219-239, 2021. [Publication, Abstract]
  6. Amer A., Kopsaftopoulos F.P.. "Gaussian Process Regression for Active Sensing Probabilistic Structural Health Monitoring: Experimental Assessment Across Multiple Damage and Loading Scenarios," arXiv:2106.14841, 2021. [Publication, Abstract]
  7. Paul S., Patterson S., Kopsaftopoulos F.P., Varela C.. "Towards Formal Correctness Envelopes for Dynamic Data-Driven Aerospace Systems," invited chapter, Frederica Darema and Erik Blasch, editors, Handbook of Dynamic Data-Driven Application Systems. Springer, 2021. [Publication, Abstract]
  8. Lois A., Kopsaftopoulos F.P., Giannopoulos D., Polychronopoulou K., Martakis N.. "A two-stage procedure for the automated identification of micro-earthquakes: implementation on single-station 3C passive seismic data," Geophysical Journal International, Vol. 224(3), pp. 1705-1723, 2021. [Publication, Abstract]
  9. Amer A., Roy S., Kopsaftopoulos F.P.. "Probabilistic SHM under varying loads via the integration of Gaussian Process Regression and physics-based guided-wave propagation models," AIAA Scitech 2021 Forum, p. 0434, Virtual Event, January 2021. [Publication, Abstract]
  10. Makkar G., Reddinger JP., Gandhi F., Kopsaftopoulos F.P.. "Machine Learning Based Approach to Improve Low-Fidelity Predictions for a Compound Helicopter," Vertical Flight Society’s 77th Annual Forum & Technology Display, Virtual, May 10–14, 2021 [Publication, Abstract]
  11. Dutta A., McKay M., Kopsaftopoulos F.P., Gandhi F.. "Statistical residual-based time series methods for multicopter fault detection and identification," Aerospace Science and Technology, Vol. 112: 106649, 2021. [Publication, Abstract]
  12. Amer A., Kopsaftopoulos F.P.. "Statistical guided-waves-based structural health monitoring via stochastic non-parametric time series models," Structural Health Monitoring, Vol. 0(0), pp. 1-28, 2021 [Publication, Abstract]
  13. Dutta A., Niemiec R., Kopsaftopoulos F.P., Gandhi F.. "Unified Statistical Framework for Rotor Fault Diagnosis on a Hexacoptervia Functionally Pooled Stochastic Models," Vertical Flight Society’s 77th Annual Forum & Technology Display, Virtual, May 10–14, 2021 [Publication, Abstract]
  14. Makkar G., Reddinger JP., Ground AP., Gandhi F.. "Machine Learning Based Approach to Improve Low-Fidelity Predictions for a Compound Helicopter," Vertical Flight Society’s 77th Annual Forum & Technology Display, Virtual, May 10–14, 2021 [Publication, Abstract]
  15. Belsten A., Kopsaftopoulos F.P.. "Data-Driven Flight State Identification via Time-Series-Informed Features and Convolutional Neural Network," AIAA AVIATION 2021 FORUM, p. 3182, Virtual Event, August 2021. [Publication, Abstract]
  16. Ahmed S., Kopsaftopoulos F.P.. "Stochastic Identification of Guided Wave Propagation under Ambient Temperature via Non-Stationary Time Series Models," Sensors, Vol. 21(16), p. 5672, 2021. [Publication, Abstract]
  17. Dutta A., McKay ME., Kopsaftopoulos F.P., Gandhi F.. "Multicopter Fault Detection and Identification via Data-Driven Statistical Learning Methods," AIAA Journal, Vol. 60(1), pp. 160-175, 2022. [Publication, Abstract]

2020

  1. Dutta A., McKay M., Kopsaftopoulos F.P., Gandhi F.. "Statistical time series methods for multicopter fault detection and identification," Vertical Flight Society International Powered Lift Conference, San Jose, CA, USA, January 2020. [Publication, Abstract]
  2. Lois A., Kopsaftopoulos F.P., Giannopoulos D., Polychronopoulou K., Martakis N.. "Remarks on the micro-earthquake detection problem: Refining the outcome using stochastic modeling," 22nd EGU General Assembly, id.9095, held online 4-8 May, 2020. [Publication, Abstract]
  3. Amer A., Kopsaftopoulos F.P.. "Towards unified probabilistic rotorcraft damage detection and quantification via non-parametric time series and Gaussian process regression models," Proceedings of the Vertical Flight Society 76th Annual Forum & Technology Display, October 6-8, 2020. [Publication, Abstract]
  4. Dutta A., McKay M., Kopsaftopoulos F.P., Gandhi F.. "Rotor fault detection and identification for a hexacopter based on control and state signals via statistical learning methods," Proceedings of the Vertical Flight Society 76th Annual Forum & Technology Display, October 6-8, 2020. [Publication, Abstract]
  5. Dutta A., McKay M., Kopsaftopoulos F.P., Gandhi F.. "Rotor Fault Detection and Identification on a Hexacopter under Varying Flight States Based on Global Stochastic Models," Proceedings of the Vertical Flight Society 76th Annual Forum & Technology Display, October 6-8, 2020. [Publication, Abstract]
  6. Amer A., Ahmed S., Kopsaftopoulos F.P.. "Active-sensing structural health monitoring via statistical learning: an experimental study under varying damage and loading states," In: Rizzo P., Milazzo A. (eds) European Workshop on Structural Health Monitoring. EWSHM 2020. Lecture Notes in Civil Engineering, vol. 128. Springer, Cham. [Publication, Abstract]
  7. Cruz-Camacho E., Paul S., Kopsaftopoulos F.P.. "Towards Provably Correct Probabilistic Flight Systems," International Conference on Dynamic Data Driven Application Systems, Vol. 12312, pp. 236-244, Springer, Cham, November 2020. [Publication, Abstract]
  8. Paul S., Kopsaftopoulos F.P., Patterson S., Varela C.. "Dynamic Data-Driven Formal Progress Envelopes for Distributed Algorithms," International Conference on Dynamic Data Driven Application Systems (pp. 245-252), Springer, Cham, November 2020. [Publication, Abstract]
  9. Ahmed S., Amer A., Varela C., Kopsaftopoulos F.P.. "Data-Driven State Awareness for Fly-by-Feel Aerial Vehicles via Adaptive Time Series and Gaussian Process Regression Models," International Conference on Dynamic Data Driven Application Systems (pp. 57-65), Springer, Cham, November, 2020 [Publication, Abstract]

2019

  1. Blasch E., Ashdown J., Kopsaftopoulos F.P., Varela C., and Newkirk R.. "Dynamic data driven analytics for multi-domain environments," Proc. SPIE 11006, Artificial Intelligence and Machine Learning for Multi-Domain Operations Applications, 1100604, Baltimore, MD, USA, April 2019. [Publication, Abstract]
  2. Ahmed S. and Kopsaftopoulos F.P.. "Uncertainty quantification of guided waves propagation for active sensing structural health monitoring," in the Proceedings of the Vertical Flight Society 75th Annual Forum & Technology Display, Philadelphia, PA, USA, May 2019. [Publication, Abstract]
  3. Amer A. and Kopsaftopoulos F.P.. "Probabilistic active sensing acousto-ultrasound SHM based on non-parametric stochastic representations," in the Proceedings of the Vertical Flight Society 75th Annual Forum & Technology Display, Philadelphia, PA, USA, May 2019. [Publication, Abstract]
  4. Dutta A., McKay M., Kopsaftopoulos F.P., Gandhi F.. "Rotor fault detection and identification on a hexacopter based on statistical time series methods," in the Proceedings of the Vertical Flight Society 75th Annual Forum & Technology Display, Philadelphia, PA, USA, May 2019. [Publication, Abstract]
  5. Dutta A., McKay M., Kopsaftopoulos F.P., Gandhi F.. "Fault detection and identification for multirotor aircraft by data-driven statistical learning methods," AIAA/IEEE Electric Aircraft Technologies Symposium, Indianapolis, IN, USA, August 2019. [Publication, Abstract]
  6. Huang Z., Zhao H., Liu C., Chen X., Kopsaftopoulos F.P., Chang F.-K.. "High accuracy flight state identification of a self-sensing wing via machine learning approaches," in the Proceedings of the 12th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2019. [Publication, Abstract]
  7. Ladpli P., Liu C., Kopsaftopoulos F.P., Chang F.-K.. "Health prognostics of Lithium-ion batteries and battery-integrated structures," 12th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2019. [Publication, Abstract]
  8. Breese S. Kopsaftopoulos F.P., Varela C.. "Towards proving runtime properties of data-driven systems using safety envelopes," 12th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2019. [Publication, Abstract]
  9. Ahmed S. and Kopsaftopoulos F.P.. "Investigation of broadband high-frequency stochastic actuation for active-sensing SHM under varying temperature," 12th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2019. [Publication, Abstract]
  10. Amer A. and Kopsaftopoulos F.P.. "Probabilistic damage quantification via the integration of non-parametric time-series and Gaussian process regression models," 12th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2019. [Publication, Abstract]
  11. James A. and Kopsaftopoulos F.P.. "Data-driven stochastic identification of a UAV under varying flight and structural health states," 12th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2019. [Publication, Abstract]
  12. Chen X., Kopsaftopoulos F.P., Wu Q., Ren H., Chang F.-K.. "A self-adaptive 1D convolutional neural network for flight-state identification," Sensors, Vol. 19(2), pp. 275, 2019. [Publication, Abstract]
  13. F.-K. Chang and F. Kopsaftopoulos (Eds.). "Structural Health Monitoring 2019: Enabling Intelligent Life-cycle Health Management for Industry Internet of Things (IIOT)," Two Volumes, 3576 pages, 978-1-60595-601-5, DEStech Publications Inc., 2019. [Publication, Abstract]
  14. Ladpli P., Nardari R., Kopsaftopoulos F.P., Chang F.-K.. "Multifunctional Energy Storage Composite Structures with Embedded Lithium-ion Batteries," Journal of Power Sources, Vol. 414, pp. 517-529, 2019. [Publication, Abstract]
  15. Arumbakkam S., Casey P., Fahey L., Yang S., Zhou P., Kopsaftopoulos F.P.. "Design of an intelligent self-aware solar-powered unmanned aerial vehicle: Conventional and unconventional design approaches," AIAA SciTech Forum, San Diego, CA, USA, January 2019. [Publication, Abstract]
  16. Kopsaftopoulos F.P.. "Data-driven stochastic identification for fly-by-feel aerospace structures: Critical assessment of non-parametric and parametric approaches," AIAA SciTech Forum, San Diego, CA, USA, January 2019. [Publication, Abstract]
  17. Rojas Carvajal T., James A., Kopsaftopoulos F.P.. "An intelligent morphing wing with data-driven state awareness capabilities under varying flight and morphing states," to appear in the 2019 AIAA SciTech Forum, San Diego, CA, USA, January 2019. [Abstract]

2018

  1. Chen X., Kopsaftopoulos F.P., Wu Q., Ren H., Chang F.-K.. "Flight State Identification of a Self-Sensing Wing via an Improved Feature Selection Method and Machine Learning Approaches," Invited paper in the Special Issue “Selected Papers from IWSHM 2017”, Sensors, Vol. 18(5), pp. 1379, 2018. [Publication, Abstract]
  2. Ladpli P., Kopsaftopoulos F.P., Chang F.-K.. "Estimating State of Charge and Health of Lithium-ion Batteries with Guided Waves Using Built-in Piezoelectric Sensors/Actuators," Journal of Power Sources, Vol. 384, pp. 342-354, 2018. [Publication, Abstract]
  3. Kopsaftopoulos F.P. and Chang F.-K.. "A Dynamic Data-driven Stochastic State-awareness Framework for the Next Generation of Bio-inspired Flyby-feel Aerospace Vehicles," invited chapter, Handbook of Dynamic Data Driven Applications Systems, Erik Blasch, Sai Ravela and Alex Aved (Eds.), 2018. Hardcover ISBN: 978-3-319-95503-2, eBook ISBN: 978-3-319-95504-9. [Publication, Abstract]
  4. Wilson C., Lonkar K., Roy S., Kopsaftopoulos F.P., Chang F.-K.. "Structural Health Monitoring of Composites," invited chapter, Reference Module in Materials Science and Materials Engineering, Comprehensive Composite Materials II, C. Zweben and Dr. P. Beaumont (Eds.), Vol. 7, pp. 382-407, Elsevier, 2018. [Publication, Abstract]
  5. Zhuang Y., Kopsaftopoulos F.P., Dugnani R., Chang F.-K.. "A self-diagnostic adhesive for bondline integrity monitoring of aerospace structures," invited paper, Structural Health Monitoring, in press. [Publication, Abstract]
  6. Kopsaftopoulos F.P., Nardari R., Li Y.-H., Chang F.-K.. "A stochastic global identification for aerospace structures operating under varying flight states," Mechanical Systems and Signal Processing, Vol. 98, pp. 425–447, 2018. [Publication, Abstract]
  7. Ladpli P., Liu C., Kopsaftopoulos F.P., Chang F.-K.. "Estimating lithium-ion battery state of charge and health with ultrasonic guided waves using an efficient matching pursuit technique," in the IEEE Transportation Electrification Conference & EXPO Asia-Pacific (ITEC Asia-Pacific 2018), Bangkok, Thailand, June 2018. [Abstract]
  8. Ladpli P., Kopsaftopoulos F.P., Chang F.-K.. "Multifunctional energy storage composites: electrochemical and mechanical cycling characterization," to appear in the Conference on Behavior and Mechanics of Multifunctional Materials and Composites XII, part of SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, Denver, CO, USA, March 2018. [Abstract]
  9. Kopsaftopoulos F.P. and Chang F.-K.. "Self-sensing self-diagnostic structures for next generation intelligent aerospace systems," in the Proceedings of the AHS Airworthiness and HUMS Technical Meeting, Huntsville, Alabama, USA, February 21- 22, 2018. [Abstract]

2017

  1. Purim Ladpli, Fotis Kopsaftopoulos, Raphael Nardari, Fu-Kuo Chang. "ultrasonic guided-wave-based methods using built-in piezoelectric transducers," Smart Materials and Nondestructive Evaluation for Energy Systems 2017, Vol. 10171, p. 1017108. International Society for Optics and Photonics. 2017 [Publication, Abstract]
  2. Ladpli P., Kopsaftopoulos F.P., Chang F.-K.. "Novel guided-wave-based in-situ characterization technique for electrochemical and structural dynamics in lithium-ion batteries," in the Proceedings of ASME’s International Mechanical Engineering Congress and Exposition (IMECE), Tampa, FL, USA, November 2017. [Abstract]
  3. Kopsaftopoulos F.P., Nardari R., Li Y.-H., Chang F.-K.. "Data-driven state awareness for fly-by-feel aerial vehicles: experimental assessment of a nonparametric probabilistic stall detection approach," Proceedings of the 11th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2017. [Publication, Abstract]
  4. Ladpli P., Kopsaftopoulos F.P., Chang F.-K.. "Battery state of charge estimation using guided waves – Numerical validation and statistical analysis," Proceedings of the 11th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2017. [Publication, Abstract]
  5. Yadav S., Chung H., Kopsaftopoulos F.P., Chang F.-K.. "Damage quantification of active-sensing acousto-ultrasound-based SHM via a multi-path unit-cell approach," Proceedings of the 11th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2017. [Publication, Abstract]
  6. Wang Y., Bombik A., Ladpli P., Kopsaftopoulos F.P., Chang F.-K.. "Numerical model for characterization of multifunctional energy storage composite cells, modules, and systems," Proceedings of the 11th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2017. [Publication, Abstract]
  7. Chen X., Kopsaftopoulos F.P., Cao H., Chang F.-K.. "Intelligent flight state identification of a self-sensing wing through neural network modeling," Proceedings of the 11th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2017. [Publication, Abstract]
  8. Cao H., Tian Y., Lei J., Tan X., Gao D., Kopsaftopoulos F.P., ChangF.-K.. "Deformation data recovery based on compressed sensing in bridge structural health monitoring," Proceedings of the 11th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2017. [Publication, Abstract]
  9. Salowitz N., Kim S.-J., Kopsaftopoulos F.P., Li Y.-H., Chang F.-K.. "Design and analysis of radially polarized screen-printed piezoelectric transducers," Journal of Intelligent Material Systems and Structures, Vol. 28(7), pp. 934–947, 2017. [Publication, Abstract]
  10. Ladpli P., Kopsaftopoulos F.P., Nardari R., Chang F.-K.. "Battery charge and health state monitoring via ultrasonic-guided-wave-based methods using built-in piezoelectric transducers," Smart Materials and Nondestructive Evaluation for Energy Systems III, part of SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, Portland, OR, USA, March 2017. [Publication, Abstract]
  11. F.-K. Chang and F. Kopsaftopoulos (Eds.). "Structural Health Monitoring 2017: Real-time Material State Awareness and Data-driven Safety Assurance," Two Volumes, 3338 pages, 978-1-60595-330-4, DEStech Publications, Inc, 2017. [Publication, Abstract]

2016

  1. Zhuang Y., Kopsaftopoulos F.P., Chang F.-K.. "Bondline degradation monitoring and remaining strength estimation via an electromechanical impedancebased method," Proceedings of the 1st International Workshop on Structural Health Monitoring for Railway System (IWSHM-RS), Qingdao, Shandong, China, October 2016. [Publication, Abstract]
  2. Dugnani R., Zhuang Y., Kopsaftopoulos F.P., Chang F.-K.. "Adhesive bondline degradation detection via a cross-correlation EMI-based approach," Structural Health Monitoring, Vol. 15(6), pp. 650–667, 2016. [Publication, Abstract]
  3. Ladpli P., Nardari R., Wang Y., Kopsaftopoulos F.P., Kepler K., Chang F.-K.. "Design of multifunctional structural batteries with health monitoring capabilities," invited keynote paper, Proceedings of the 8th European Workshop on Structural Health Monitoring (EWSHM), Bilbao, Spain, July 2016. [Abstract]
  4. Cot L.D., Gomez C., Gamboa F., Kopsaftopoulos F.P., Chang F.-K.. "SHM-based fatigue damage prognostics in composite structures," Proceedings of the 8th European Workshop on Structural Health Monitoring (EWSHM), Bilbao, Spain, July 2016. [Abstract]
  5. Janapati V., Kopsaftopoulos F.P.⇤, Li F., Lee S.J., Chang F.-K.. "Damage detection sensitivity characterization of acousto-ultrasound-based SHM techniques," Structural Health Monitoring, Vol. 15(2), pp. 143–161, 2016. [Publication, Abstract]
  6. Sotiriou D., Kopsaftopoulos F.P.⇤ and Fassois S.D.. "An adaptive time series probabilistic framework for 4D trajectory conformance monitoring," IEEE Transactions on Intelligent Transportation Systems, Vol. 17(6), pp. 1606–1616, 2016. [Publication, Abstract]
  7. Ladpli P., Nardari R., Wang Y., Rewari R., Kuo H., Kopsaftopoulos F.P., Kepler K., Chang F.-K.. "Multifunctional energy storage composites – Design, fabrication, and experimental characterization," ASME 2016 Power & Energy Conference, Charlotte, NC, USA, June 2016. [Abstract]
  8. Kopsaftopoulos F.P., Nardari R., Li Y.-H., Wang P., Chang F.-K.. "Stochastic global identification of a bio-inspired self-sensing composite UAV wing via wind tunnel experiments," Proceedings of the SPIE 9805, Health Monitoring of Structural and Biological Systems 2016, 98051V, Las Vegas, NV, USA, March 2016. [Publication, Abstract]
  9. Zhuang Y., Kopsaftopoulos F.P., Chang F.-K.. "A self-diagnostic adhesive for monitoring bonded joints in aerospace structures," Proceedings of the SPIE 9803, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2016, 98030I, Las Vegas, NV, USA, March 2016. [Publication, Abstract]

2015

  1. Zhuang Y., Kopsaftopoulos F.P., Chang F.-K.. "A self-diagnostic adhesive for bonded joints in aircraft structures," Proceedings of the Composites and Advanced Materials Expo (CAMX), Dallas, TX, USA, October 2015. [Abstract]
  2. Kopsaftopoulos F.P., Nardari R., Li Y.-H., Chang F.-K.. "Experimental identification of structural dynamics and aeroelastic properties of a self-sensing smart composite wing," Proceedings of the 10th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2015. [Publication, Abstract]
  3. Zhuang Y., Kopsaftopoulos F.P., Chang F.-K.. "Bondline integrity monitoring of adhesively bonded structures via an electromechanical impedance based approach," Proceedings of the 10th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2015. [Publication, Abstract]
  4. Ladpli P., Nardari R., Wang Y., Hernandez-Gallegos P., Rewari R., Kuo H., Kopsaftopoulos F.P., KeplerK., LopezH.,Chang F.-K.. "Multifunctional energy storage composites for SHM distributed sensor networks," Proceedings of the 10th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2015. [Publication, Abstract]
  5. Hajrya R. Kopsaftopoulos F.P., Roy S., Ladpli P., Chang F.-K.. "Decision making for reference-free damage detection," Proceedings of the 10th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2015. [Publication, Abstract]
  6. Kopsaftopoulos F.P. and Fassois S.D.. "A vibration model residual based sequential probability ratio test framework for structural health monitoring," Structural Health Monitoring, Vol. 14(4), pp. 359–381, 2015. [Publication, Abstract]
  7. Kopsaftopoulos F.P., Nardari R., Li Y.-H., Wang, P., Chang F.-K.. "State sensing and awareness for a bio-inspired intelligent composite UAV wing," Proceedings of the 20th International Conference on Composite Materials (ICCM), Copenhagen, Denmark, July 2015. [Abstract]
  8. Dimogianopoulos D., Petratos V., Kopsaftopoulos F.P., and Fassois S.D.. "A GPCbased auto-throttle with robust fuel-efficient operation in 4D flights," Aerospace Science and Technology, Vol. 40, pp. 128–137, 2015. [Publication, Abstract]
  9. Janapati V., Kopsaftopoulos F.P., Lee S.J., Chang F.-K.. "Model-assisted structural health monitoring system reliability quantification," Proceedings of the Technical Specialists’ Meeting on Airworthiness, Condition Based Maintenance (CBM), and Health and Usage Monitoring (HUMS), Huntsville, AL, USA, February 2015. [Abstract]
  10. F.-K. Chang and F. Kopsaftopoulos (Eds.). "Structural Health Monitoring 2015: System Reliability for Verification and Implementation," Two Volumes, 3220 pages, 978-1-60595-275-8, DEStech Publications, Inc, 2015. [Publication, Abstract]

2014

  1. Salowitz N., Guo Z., Roy S., Nardari R., Li Y.-H., Kim S.-J., Kopsaftopoulos F.P., Chang F.-K.. "Recent advancements and vision toward stretchable bio-inspired networks for intelligent structures," Structural Health Monitoring, Vol. 13(6), pp. 609–620, 2014. [Publication, Abstract]

2013

  1. Salowitz N., Guo Z., Roy S., Nardari R., Li Y.-H., Kim S.-J., Kopsaftopoulos F.P., Chang F.-K.. "A vision on stretchable bio-inspired networks for intelligent structures," keynote paper, Proceedings of the 9th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2013. [Abstract]
  2. Janapati V., Kopsaftopoulos F.P., Roy S., Mueller I., Lee S.-J., Ladpli P., Chang F.-K.. "Sensor network configuration e↵ect on detection sensitivity of an acousto-ultrasound-based active SHM system," Proceedings of the 9th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2013. [Abstract]
  3. Kopsaftopoulos F.P. and Fassois S.D.. "A sequential statistical time series framework for vibration based structural health monitoring," Proceedings of the 9th International Workshop on Structural Health Monitoring (IWSHM), Stanford University, USA, September 2013. [Abstract]
  4. Fassois S.D. and Kopsaftopoulos F.P.. "Statistical Time Series Methods for Vibration Based Structural Health Monitoring," invited chapter, New Trends in Structural Health Monitoring, W. Ostachowicz and A. Guemes (Eds.), pp. 209–264, Springer, 2013 (436 p. 284 illus.) ISBN: 978-3-7091-1389-9 (Print); 978-3-7091-1390-5 (Online). [Publication, Abstract]
  5. Kopsaftopoulos F.P. and Fassois S.D.. "A functional model based statistical time series method for vibration based damage detection, localization, and magnitude estimation," Mechanical Systems and Signal Processing, Vol. 39(1–2), pp. 143–161, 2013. [Publication, Abstract]
  6. Kopsaftopoulos F.P. and Fassois S.D.. "An adaptive time series framework for aircraft 4D trajectory conformance monitoring," Proceedings of the European Control Conference (ECC), Zurich, Switzerland, July 2013. [Abstract]
  7. Petratos V., Dimogianopoulos D., Kopsaftopoulos F.P., and Fassois S.D.. "A novel robust MPC based aircraft auto-throttle for performing 4D contract flights," Proceedings of the Asian Control Conference (ASCC), Istanbul, Turkey, June 2013. [Abstract]
  8. Kopsaftopoulos F.P., Vamvoudakis-Stefanou K., and Fassois S.D.. "A model residual based sequential probability ratio test framework for structural damage diagnosis," Proceedings of 5th International Operational Modal Analysis Conference (IOMAC), Guimar˜aes, Portugal, May 2013. [Abstract]

2012

  1. Kopsaftopoulos F.P. and Fassois S.D.. "Vector-dependent Functionally Pooled ARX Models for the identification of systems under multiple operating conditions," IFAC Proceedings Volumes, Vol. 45(16), pp. 310–315, 2012. [Publication, Abstract]

2011

  1. Kopsaftopoulos F.P. and Fassois S.D.. "Scalar and vector time series methods for vibration based damage diagnosis in a scale aircraft skeleton structure," invited paper to Journal of Theoretical and Applied Mechanics, Vol. 49(3), pp. 727–756, 2011. [Publication, Abstract]
  2. Kopsaftopoulos F.P. and Fassois S.D.. "Statistical time series methods for damage diagnosis in a scale aircraft skeleton structure: loosened bolts damage scenarios," Journal of Physics: Conference Series 305 (2011) 012056, Proceedings of the 9th International Conference on Damage Assessment of Structures (DAMAS), St. Anne’s College, Oxford, U.K., July 2011. [Publication, Abstract]
  3. Kopsaftopoulos F.P., Apostolellis P.G., and Fassois S.D.. "Output-only parametric identification of a scale cable-stayed bridge structure: A comparison of vector AR and state space methods," Proceedings of the 4th International Operational Modal Analysis Conference (IOMAC), Istanbul, Turkey, May 2011. [Abstract]

2010

  1. Kopsaftopoulos F.P. and Fassois S.D.. "Vibration based health monitoring for a lightweight truss structure: experimental assessment of several statistical time series methods," Mechanical Systems and Signal Processing, Vol. 24(7), pp. 1977–1997, 2010. [Publication, Abstract]
  2. Kopsaftopoulos F.P. and Fassois S.D.. "Vibration based health monitoring for a thin aluminum plate – A comparative assessment of statistical time series methods," Proceedings of the 5th European Workshop on Structural Health Monitoring (EWSHM), Sorrento, Italy, July 2010. [Abstract]
  3. Kopsaftopoulos F.P., Magripis S.G., Amplianitis A.D., and Fassois S.D.. "Scalar and vector time series methods for vibration based damage diagnosis in an aircraft scale skeleton structure," Proceedings of the ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis (ESDA), Istanbul, Turkey, July 2010. [Abstract]

2008

  1. Kopsaftopoulos F.P. and Fassois S.D.. "Experimental assessment of time series methods for structural health monitoring (SHM)," Proceedings of the 4th European Workshop on Structural Health Monitoring (EWSHM), Cracow, Poland, July 2008. [Abstract]

2007

  1. Kopsaftopoulos F.P. and Fassois S.D.. "Vibration based structural damage detection and precise assessment via stochastic functionally pooled models," Key Engineering Materials, Vol. 347, pp. 127–132, 2007. [Publication, Abstract]
  2. Kopsaftopoulos F.P. and Fassois S.D.. "Vibration based structural damage detection and precise assessment via stochastic functionally pooled models," Proceedings of the 7th International Conference on Damage Assessment of Structures (DAMAS), Torino, Italy, July 2007. [Abstract]

2006

  1. Kopsaftopoulos F.P. and Fassois S.D.. "Vibration-based fault detection and assessment in a scale aircraft structure via stochastic VFP–ARX models," Proceedings of 3rd European Workshop on Structural Health Monitoring (EWSHM), Granada, Spain, July 2006. [Abstract]
  2. Kopsaftopoulos F.P. and Fassois S.D.. "Identification of stochastic systems under multiple operating conditions: the Vector-dependent FP–ARX parametrization," Proceedings of the 14th Mediterranean Conference on Control and Automation (MCCA), Ancona, Italy, June 2006. [Publication, Abstract]