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Optimal Rainbow Metamaterials for Extended Vibrational Stopbands (2019)
Presentation / Conference
Meng, H., & Chronopoulos, D. (2019, December). Optimal Rainbow Metamaterials for Extended Vibrational Stopbands. Paper presented at ICADO 2019: 13. International Conference on Aerospace Design and Optimization, London, UK

Nonperiodic metamaterials can have better vibration attenuation than periodic metamaterials with properly designed resonator distributions. In this study, we propose optimal design routes for rainbow metamaterials. The rainbow metamaterials are nonpe... Read More about Optimal Rainbow Metamaterials for Extended Vibrational Stopbands.

Numerical simulation data for the dynamic properties of rainbow metamaterials (2019)
Journal Article
Meng, H., Chronopoulos, D., & Fabro, A. T. (2020). Numerical simulation data for the dynamic properties of rainbow metamaterials. Data in Brief, 28, Article 104772. https://doi.org/10.1016/j.dib.2019.104772

Simulation data are presented for identifying and analysing the dynamic properties of the rainbow metamaterials as presented in the articles “Rainbow metamaterials for broadband multi-frequency vibration attenuation: numerical analysis and experiment... Read More about Numerical simulation data for the dynamic properties of rainbow metamaterials.

A FE-based scheme for computing wave interaction with nonlinear damage and generation of harmonics in layered composite structures (2019)
Presentation / Conference
Apalowo, R., & Chronopoulos, D. (2019, November). A FE-based scheme for computing wave interaction with nonlinear damage and generation of harmonics in layered composite structures. Paper presented at ICMAT 2020: 14. International Conference on Mechanical Analysis and Testing, London, UK

A Finite Element (FE) based scheme is presented for quantifying guided wave interaction with Localised Nonlinear Structural Damage (LNSD) within structures of arbitrary layering and geometric complexity. The through-thickness mode-shape of the struct... Read More about A FE-based scheme for computing wave interaction with nonlinear damage and generation of harmonics in layered composite structures.

Structural identification for layered composite structures through a wave and finite element methodology (2019)
Presentation / Conference
Apalowo, R., & Chronopoulos, D. (2019, November). Structural identification for layered composite structures through a wave and finite element methodology. Paper presented at ICMAT 2020: 14. International Conference on Mechanical Analysis and Testing, London, UK

A novel approach for identifying the geometric and material characteristics of layered composite structures through an inverse wave and finite element methodology is proposed. These characteristics are obtained through multi-frequency single shot mea... Read More about Structural identification for layered composite structures through a wave and finite element methodology.

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.

Bayesian damage characterization based on probabilistic model of scattering coefficients and hybrid wave finite element model scheme (2019)
Conference Proceeding
Yan, W., Chronopoulos, D., Papadimitriou, C., Cantero-Chinchilla, S., & Zhu, G. (2019). Bayesian damage characterization based on probabilistic model of scattering coefficients and hybrid wave finite element model scheme. In COMPDYN 2019 : Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. Volume 2 (2952-2958)

Ultrasonic Guided Wave(GW) has been proven to be sensitive to small damage. Motivated by the fact that the quantitative relationship between wave scattering and damage intensity can be described by scattering properties, this study aims at proposing... Read More about Bayesian damage characterization based on probabilistic model of scattering coefficients and hybrid wave finite element model scheme.

Rainbow metamaterials for broadband multi-frequency vibration attenuation: Numerical analysis and experimental validation (2019)
Journal Article
Chronopoulos, D., Meng, H., Elmadih, W., Fabro, A., & Maskery, I. (2020). Rainbow metamaterials for broadband multi-frequency vibration attenuation: Numerical analysis and experimental validation. Journal of Sound and Vibration, 465, Article 115005. https://doi.org/10.1016/j.jsv.2019.115005

In this study, we propose a ‘rainbow’ metamaterial to achieve broadband multi-frequency vibration attenuation. The rainbow metamaterial is constituted of a Π-shaped beam partitioned into substructures by parallel plates insertions with two attached c... Read More about Rainbow metamaterials for broadband multi-frequency vibration attenuation: Numerical analysis and experimental validation.

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.

An analytical perspective on Bayesian uncertainty quantification and propagation in mode shape assembly (2019)
Journal Article
Yan, W., Papadimitriou, C., Katafygiotis, L. S., & Chronopoulos, D. (2020). An analytical perspective on Bayesian uncertainty quantification and propagation in mode shape assembly. Mechanical Systems and Signal Processing, 135, Article 106376. https://doi.org/10.1016/j.ymssp.2019.106376

Assembling local mode shapes identified from multiple setups to form global mode shapes is of practical importance when the degrees of freedom (dofs) of interest are measured separately in individual setups or when one expects to exploit the computat... Read More about An analytical perspective on Bayesian uncertainty quantification and propagation in mode shape assembly.

A Rainbow Metamaterial For Broadband Multi-frequency Vibration Suppression (2019)
Conference Proceeding
Meng, H., Chronopoulos, D., & Fabro, A. T. (2019). A Rainbow Metamaterial For Broadband Multi-frequency Vibration Suppression

In this study, we propose a rainbow metamaterial to achieve multi-frequency broadband vibration suppression. A U-shaped beam is partitioned into subspace by parallel baffle plates. Cantilever-mass microstructures are then attached to the each subspac... Read More about A Rainbow Metamaterial For Broadband Multi-frequency Vibration Suppression.

Wave scattering in coupled composite plates (2019)
Conference Proceeding
Aimakov, N., Tanner, G., & Chronopoulos, D. (2019). Wave scattering in coupled composite plates. In Proceedings of Internoise 2019 , The 48th International Congress and Exhibition on Noise Control Engineering

Establishing the wave propagation characteristics at plate junctions is of great importance in the prediction of vibrational energy transmission across complex structures. A hybrid approach combining the finite element (FE) and the wave finite elemen... Read More about Wave scattering in coupled composite plates.

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.

Optimal design of rainbow elastic metamaterials (2019)
Journal Article
Fabro, A. T., Meng, H., Chronopoulos, D., Maskery, I., & Chen, Y. (2020). Optimal design of rainbow elastic metamaterials. International Journal of Mechanical Sciences, 165, https://doi.org/10.1016/j.ijmecsci.2019.105185

In this study, we present an optimization scheme for the resonator distribution in rainbow metamaterials that are constitutive of a ?-shaped beam with parallel plate insertions and two sets of spatially varying cantilever-mass resonators. To improve... Read More about Optimal design of rainbow elastic metamaterials.

Active vibration control of thin constrained composite damping plates with double piezoelectric layers (2019)
Journal Article
Cao, X., Tanner, G., & Chronopoulos, D. (2020). Active vibration control of thin constrained composite damping plates with double piezoelectric layers. Wave Motion, 92, Article 102423. https://doi.org/10.1016/j.wavemoti.2019.102423

Vibrations and the damping behaviour of thin constrained composite plates with double piezoelectric layers are analytically explored by using Fourier transformation and classical laminated plate theory. Electric potential equations in the double piez... Read More about Active vibration control of thin constrained composite damping plates with double piezoelectric layers.

Optimal Ultrasonic Sensor Configuration for Plate-Like Structures Using the Value of Information (2019)
Conference Proceeding
Cantero-Chinchilla, S., Chiachío, J., Chiachío, M., Chronopoulos, D., Jones, A., Essa, Y., & de la Escalera, F. M. (2019). Optimal Ultrasonic Sensor Configuration for Plate-Like Structures Using the Value of Information. In Structural Health Monitoring 2019 Enabling Intelligent Life-cycle Health Management for Industry Internet of Things (IIOT): Proceedings of 12th International Workshop on Structural Health Monitoring (1455-1462). https://doi.org/10.12783/shm2019/32267

Condition-based maintenance is based on reliable and effective structural health monitoring systems able to provide accurate information about the health condition of a structure. Among the factors that influence the accuracy and reliability of such... Read More about Optimal Ultrasonic Sensor Configuration for Plate-Like Structures Using the Value of Information.

Ultrasonic Guided-Wave Based System Identification for Beams (2019)
Conference Proceeding
MALIK, M. K., CHINCHILLA, S. C., CHRONOPOULOS, D., CHIACHIAO, J., & ESSA, Y. (2019). Ultrasonic Guided-Wave Based System Identification for Beams. In Structural Health Monitoring 2019 : Enabling Intelligent Life-cycle Health Management for Industry Internet of Things (IIOT) : Proceedings of the Twelfth International Workshop on Structural Health Monitoring, September 10–12, 2019 (2313-2320). https://doi.org/10.12783/shm2019/32371

© 2019 by DEStech Publications, Inc. All rights reserved. Structural health monitoring (SHM) usually requires several stages of information, starting from damage detection, localisation, and identification. Ultrasonic guided waves can travel long dis... Read More about Ultrasonic Guided-Wave Based System Identification for Beams.

3D printed architected hollow sphere foams with low-frequency phononic band gaps (2019)
Journal Article
McGee, O., Jiang, H., Qian, F., Jia, Z., Wang, L., Meng, H., …Zuo, L. (2019). 3D printed architected hollow sphere foams with low-frequency phononic band gaps. Additive Manufacturing, 30, Article 100842. https://doi.org/10.1016/j.addma.2019.100842

We experimentally and numerically investigate elastic wave propagation in a class of lightweight architected materials composed of hollow spheres and binders. Elastic wave transmission tests demonstrate the existence of vibration mitigation capabilit... Read More about 3D printed architected hollow sphere foams with low-frequency phononic band gaps.

Three-dimensional resonating metamaterials for low-frequency vibration attenuation (2019)
Journal Article
Elmadih, W., Chronopoulos, D., Syam, W., Maskery, I., Meng, H., & Leach, R. (2019). Three-dimensional resonating metamaterials for low-frequency vibration attenuation. Scientific Reports, 9(1), Article 11503. https://doi.org/10.1038/s41598-019-47644-0

Recent advances in additive manufacturing have enabled fabrication of phononic crystals and metamaterials which exhibit spectral gaps, or stopbands, in which the propagation of elastic waves is prohibited by Bragg scattering or local resonance effect... Read More about Three-dimensional resonating metamaterials for low-frequency vibration attenuation.

Response variability of broadband multi- frequency metastructure from additive manufacturing (2019)
Conference Proceeding
Fabro, A. T., Meng, H., & Chronopoulos, D. (2019). Response variability of broadband multi- frequency metastructure from additive manufacturing. In Proceedings of the 26th International Congress on Sound and Vibration (ICSV 2019)

Additive manufacturing has been used to propose several designs of phononic crystals and metamate-rials due to the low cost to produce complex geometrical features. However, like any other manufacturing process, it can introduce material and geometri... Read More about Response variability of broadband multi- frequency metastructure from additive manufacturing.