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OptiSens—Convex optimization of sensor and actuator placement for ultrasonic guided-wave based structural health monitoring (2020)
Journal Article
Cantero-Chinchilla, S., Beck, J. L., Chiachío, J., Chiachío, M., & Chronopoulos, D. (2021). OptiSens—Convex optimization of sensor and actuator placement for ultrasonic guided-wave based structural health monitoring. SoftwareX, 13, Article 100643. https://doi.org/10.1016/j.softx.2020.100643

This paper presents OptiSens, a computational platform in Python and Matlab, that provides optimal sensor and actuator configurations for structural health monitoring applications using ultrasonic guided-waves. This software formulates a convex entro... Read More about OptiSens—Convex optimization of sensor and actuator placement for ultrasonic guided-wave based structural health monitoring.

Optimal sensor and actuator placement for structural health monitoring via an efficient convex cost-benefit optimization (2020)
Journal Article
Cantero-Chinchilla, S., Beck, J. L., Chiachío, M., Chiachío, J., Chronopoulos, D., & Jones, A. (2020). Optimal sensor and actuator placement for structural health monitoring via an efficient convex cost-benefit optimization. Mechanical Systems and Signal Processing, 144, Article 106901. https://doi.org/10.1016/j.ymssp.2020.106901

© 2020 Elsevier Ltd The number and position of sensors and actuators are key decision variables that dictate the performance of any structural health monitoring system. This paper proposes choosing them optimally by using an objective function that c... Read More about Optimal sensor and actuator placement for structural health monitoring via an efficient convex cost-benefit optimization.

A fast Bayesian inference scheme for identification of local structural properties of layered composites based on wave and finite element-assisted metamodeling strategy and ultrasound measurements (2020)
Journal Article
Yan, W. J., Chronopoulos, D., Cantero-Chinchilla, S., Yuen, K. V., & Papadimitriou, C. (2020). A fast Bayesian inference scheme for identification of local structural properties of layered composites based on wave and finite element-assisted metamodeling strategy and ultrasound measurements. Mechanical Systems and Signal Processing, 143, Article 106802. https://doi.org/10.1016/j.ymssp.2020.106802

© 2020 Elsevier Ltd Reliable verification and evaluation of the mechanical properties of a layered composite ensemble are critical for industrially relevant applications, however it still remains an open engineering challenge. In this study, a fast B... Read More about A fast Bayesian inference scheme for identification of local structural properties of layered composites based on wave and finite element-assisted metamodeling strategy and ultrasound measurements.

An empirical study on transmission beamforming for ultrasonic guided-wave based structural health monitoring (2020)
Journal Article
Cantero-Chinchilla, S., Aranguren, G., Malik, M. K., Etxaniz, J., & de la Escalera, F. M. (2020). An empirical study on transmission beamforming for ultrasonic guided-wave based structural health monitoring. Sensors, 20(5), https://doi.org/10.3390/s20051445

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. The development of reliable structural health monitoring techniques is enabling a healthy transition from preventive to condition-based maintenance, hence leading to safer and more efficient o... Read More about An empirical study on transmission beamforming for ultrasonic guided-wave based structural health monitoring.

Bayesian inference for damage identification based on analytical probabilistic model of scattering coefficient estimators and ultrafast wave scattering simulation scheme (2019)
Journal Article
Yan, W. J., Chronopoulos, D., Papadimitriou, C., Cantero-Chinchilla, S., & Zhu, G. S. (2020). Bayesian inference for damage identification based on analytical probabilistic model of scattering coefficient estimators and ultrafast wave scattering simulation scheme. Journal of Sound and Vibration, 468, Article 115083. https://doi.org/10.1016/j.jsv.2019.115083

Ultrasonic Guided Waves (GW) actuated by piezoelectric transducers installed on structures have proven to be sensitive to small structural defects, with acquired scattering signatures being dependent on the damage type. This study presents a generic... Read More about Bayesian inference for damage identification based on analytical probabilistic model of scattering coefficient estimators and ultrafast wave scattering simulation scheme.

Optimal sensor configuration for ultrasonic guided-wave inspection based on value of information (2019)
Journal Article
Cantero-Chinchilla, S., Chiachío, J., Chiachío, M., Chronopoulos, D., & Jones, A. (2020). Optimal sensor configuration for ultrasonic guided-wave inspection based on value of information. Mechanical Systems and Signal Processing, 135, Article 106377. https://doi.org/10.1016/j.ymssp.2019.106377

Condition-based maintenance critically relies on efficient and reliable structural health monitoring systems, where the number, position and type of sensors are determined according to rational and principled criteria. This paper proposes the use of... Read More about Optimal sensor configuration for ultrasonic guided-wave inspection based on value of information.

Wave interaction with nonlinear damage and generation of harmonics in composite structures (2019)
Journal Article
Apalowo, R. K., Chronopoulos, D., & Cantero-Chinchilla, S. (2019). Wave interaction with nonlinear damage and generation of harmonics in composite structures. Composite Structures, 230, https://doi.org/10.1016/j.compstruct.2019.111495

© 2019 Elsevier Ltd This work presents a generic Finite Element (FE) based computational scheme for quantifying guided wave interaction with Localised Nonlinear Structural Damage (LNSD) within structures of arbitrary layering and geometric complexity... Read More about Wave interaction with nonlinear damage and generation of harmonics in composite structures.

A robust Bayesian methodology for damage localization in plate-like structures using ultrasonic guided-waves (2018)
Journal Article
Cantero-Chinchilla, S., Chiachío, M., Chiachío, J., Chronopoulos, D., & Jones, A. (2019). A robust Bayesian methodology for damage localization in plate-like structures using ultrasonic guided-waves. Mechanical Systems and Signal Processing, 122, 192-205. https://doi.org/10.1016/j.ymssp.2018.12.021

SHM methods for damage detection and localization in plate-like structures have typically relied on signal post-processing techniques applied to ultrasonic guided-waves. The time of flight is one of these signals features which has been extensively u... Read More about A robust Bayesian methodology for damage localization in plate-like structures using ultrasonic guided-waves.

Lamb wave-based damage indicator for plate-like structures (2018)
Journal Article
Cantero-Chinchilla, S., Chiachío-Ruano, J., Chiachío-Ruano, M., Etxaniz, J., Aranguren, G., Jones, A., …Martin De La Escalera, F. (2018). Lamb wave-based damage indicator for plate-like structures. European Conference of the Prognostics and Health Management Society, 4(1),

Structural health monitoring based on ultrasonics typically involves complex data analysis. Ultrasound monitoring based on Lamb waves techniques are extensively used nowadays due to their efficiency in exploring large areas with relatively small atte... Read More about Lamb wave-based damage indicator for plate-like structures.