Research outputs
2026
1D-CNN for Automated Characterisation of Thermal Fatigue Cracks
Beckingham, T., Gaffney, J., Colquitt, D., Ralph, J. F., Haslinger, S. G., Huthwaite, P., & Lowe, M. J. S. (2026). 1D-CNN for Automated Characterisation of Thermal Fatigue Cracks. e-Journal of Nondestructive Testing, 31(7). doi:10.58286/33573
Optimising Synthetic Data for Machine Learning Applications on Surface Breaking Thermal Fatigue Cracks
Gaffney, J., Beckingham, T., Colquitt, D., Daniels, W., & Haslinger, S. G. (2026). Optimising Synthetic Data for Machine Learning Applications on Surface Breaking Thermal Fatigue Cracks. e-Journal of Nondestructive Testing, 31(7). doi:10.58286/33339
2025
Roadmap on metamaterial theory, modelling and design
Davies, B., Szyniszewski, S., Dias, M. A., de Waal, L., Kisil, A., Smyshlyaev, V., . . . Zadpoor, A. (2025). Roadmap on metamaterial theory, modelling and design. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 58(20), 45 pages. doi:10.1088/1361-6463/adc271
Discrete Euler-Bernoulli beam lattices with beyond nearest connections
Edge, R. G., Paul, E., Madine, K. H., Colquitt, D. J., Starkey, T. A., & Chaplain, G. J. (2025). Discrete Euler-Bernoulli beam lattices with beyond nearest connections. NEW JOURNAL OF PHYSICS, 27(2), 11 pages. doi:10.1088/1367-2630/adaf50
Source Detection in Broadband Passive SONAR with Vision Transformers and Poisson RFS Loss
Shaw, W., Fontana, M., Uney, M., Colquitt, D., Riches, S., & Jones, C. (2025). Source Detection in Broadband Passive SONAR with Vision Transformers and Poisson RFS Loss. In 2025 28TH INTERNATIONAL CONFERENCE ON INFORMATION FUSION, FUSION (pp. 563-571). Retrieved from https://www.webofscience.com/
Source Detection in Broadband Passive SONAR with Vision Transformers and Poisson RFS Loss
Shaw, W., Fontana, M., Üney, M., Colquitt, D., Riches, S., & Jones, C. (2025). Source Detection in Broadband Passive SONAR with Vision Transformers and Poisson RFS Loss. In Proceedings of the 2025 28th International Conference on Information Fusion Fusion 2025. doi:10.23919/FUSION65864.2025.11124186
2024
Current developments in elastic and acoustic metamaterials science
Failla, G., Marzani, A., Palermo, A., Russillo, A. F., & Colquitt, D. (2024). Current developments in elastic and acoustic metamaterials science. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 382(2279), 9 pages. doi:10.1098/rsta.2024.0038
The perpendicular gyroscope: modal analysis of plate, beam and gyroscope multistructures
Madine, K., & Colquitt, D. (2024). The perpendicular gyroscope: modal analysis of plate, beam and gyroscope multistructures. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 382(2279). doi:10.1098/rsta.2023.0358
Current developments in elastic and acoustic metamaterials science.
Failla, G., Marzani, A., Palermo, A., Russillo, A. F., & Colquitt, D. (2024). Current developments in elastic and acoustic metamaterials science.. Philosophical transactions. Series A, Mathematical, physical, and engineering sciences, 382(2278), 20230369. doi:10.1098/rsta.2023.0369
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Colquitt, D., Faillia, G., Marzani, A., Palermo, A., & Russillo, A. (Eds.) (2024). Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences (Vol. 382). The Royal Society.
High temperature ultrasonic sensors
Daniels, W., Atkinson, I., Bugg, C., Colquitt, D., & Haslinger, S. (2024). High temperature ultrasonic sensors. NUCLEAR ENGINEERING INTERNATIONAL, 69(840), 20-23. Retrieved from https://www.webofscience.com/
GAUSSIAN PROCESSES FOR MERGING WATER COLUMN PARAMETERS
Boulton, F., Colquitt, D. J., Timme, S., & Williams, D. P. (2024). GAUSSIAN PROCESSES FOR MERGING WATER COLUMN PARAMETERS. In Proceedings of the Institute of Acoustics Vol. 46. doi:10.25144/22219
2023
Comparison of semi-analytical and numerical methods for the scattering of acoustic waves by rough, sloped seabed geometries
Whitchelo, Y., Haslinger, S., Colquitt, D., & Williams, D. (2023). Comparison of semi-analytical and numerical methods for the scattering of acoustic waves by rough, sloped seabed geometries. In JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA Vol. 153. doi:10.1121/10.0018710
Scattering of acoustic waves from rough seabeds: a comparison of two- and three-dimensional models
Whitchelo, Y., Haslinger, S. G., Colquitt, D. J., & Williams, D. P. (2023). Scattering of acoustic waves from rough seabeds: a comparison of two- and three-dimensional models. In Proceedings of Meetings on Acoustics. ASA. doi:10.1121/2.0001801
2022
Negative refraction and mode trapping of flexural–torsional waves in elastic lattices
Madine, K. H., & Colquitt, D. J. (2022). Negative refraction and mode trapping of flexural-torsional waves in elastic lattices. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 380(2237), 16 pages. doi:10.1098/rsta.2021.0379
2021
Dynamic Green's functions in discrete flexural systems
Madine, K. H., & Colquitt, D. J. (2021). DYNAMIC GREEN'S FUNCTIONS IN DISCRETE FLEXURAL SYSTEMS. QUARTERLY JOURNAL OF MECHANICS AND APPLIED MATHEMATICS, 74(3), 323-350. doi:10.1093/qjmam/hbab006
Design of a resonant Luneburg lens for surface acoustic waves
Fuentes-Domínguez, R., Yao, M., Colombi, A., Dryburgh, P., Pieris, D., Jackson-Crisp, A., . . . Clark, M. (2021). Design of a resonant Luneburg lens for surface acoustic waves. Ultrasonics, 111, 106306. doi:10.1016/j.ultras.2020.106306
Negative index metamaterial through multi-wave interactions: numerical proof of the concept of low-frequency Lamb-wave multiplexing
Lott, M., Roux, P., Rupin, M., Colquitt, D., & Colombi, A. (2021). Negative index metamaterial through multi-wave interactions: numerical proof of the concept of low-frequency Lamb-wave multiplexing. Scientific Reports, 11(1). doi:10.1038/s41598-020-79572-9
2020
Dynamic Green's functions in discrete flexural systems
One-way interfacial waves in a flexural plate with chiral double resonators.
Carta, G., Colquitt, D. J., Movchan, A. B., Movchan, N. V., & Jones, I. S. (2020). One-way interfacial waves in a flexural plate with chiral double resonators.. Philosophical transactions. Series A, Mathematical, physical, and engineering sciences, 378(2162), 20190350. doi:10.1098/rsta.2019.0350
Chiral flexural waves in structured plates: directional localisation and control
Carta, G., Colquitt, D. J., Movchan, A. B., Movchan, N. V., & Jones, I. S. (2020). Chiral flexural waves in structured plates: directional localisation and control. Journal of the Mechanics and Physics of Solids, 137. doi:10.1016/j.jmps.2020.103866
2019
An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces
Wootton, P. T., Kaplunov, J., & Colquitt, D. J. (2019). An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces. PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 475(2227), 21 pages. doi:10.1098/rspa.2019.0079
An asymptotic hyperbolic-elliptic model for flexural-seismic metasurfaces
2018
Composite dynamic models for periodically heterogeneous media
Colquitt, D. J., Danishevskyy, V. V., & Kaplunov, J. (2018). Composite dynamic models for periodically heterogeneous media. Mathematics and Mechanics of Solids, 108128651877670. doi:10.1177/1081286518776704
The multi-physics metawedge: graded arrays on fluid-loaded elastic plates and the mechanical analogues of rainbow trapping and mode conversion
Skelton, E. A., Craster, R. V., Colombi, A., & Colquitt, D. J. (2018). The multi-physics metawedge: graded arrays on fluid-loaded elastic plates and the mechanical analogues of rainbow trapping and mode conversion. New Journal of Physics, 20, 13 pages. doi:10.1088/1367-2630/aabecf
2017
Bloch waves in a triangular lattice with tilted resonators: applications to focussing
Tallarico, D., Movchan, N. V., Movchan, A. B., & Colquitt, D. J. (2017). Bloch waves in a triangular lattice with tilted resonators: applications to focussing. In 2017 11TH INTERNATIONAL CONGRESS ON ENGINEERED MATERIALS PLATFORMS FOR NOVEL WAVE PHENOMENA (METAMATERIALS) (pp. 340-342). Retrieved from https://www.webofscience.com/
Slow waves, elastic rainbow and dynamic anisotropy with a cluster of resonant rods on an elastic halfspace
Colombi, A., Craster, R., Clark, M., & Colquitt, D. (2017). Slow waves, elastic rainbow and dynamic anisotropy with a cluster of resonant rods on an elastic halfspace. In 2017 11TH INTERNATIONAL CONGRESS ON ENGINEERED MATERIALS PLATFORMS FOR NOVEL WAVE PHENOMENA (METAMATERIALS) (pp. 409-410). Retrieved from https://www.webofscience.com/
Enhanced sensing and conversion of ultrasonic Rayleigh waves by elastic metasurfaces
Colombi, A., Ageeva, V., Smith, R. J., Clare, A., Patel, R., Clark, M., . . . Craster, R. V. (2017). Enhanced sensing and conversion of ultrasonic Rayleigh waves by elastic metasurfaces. SCIENTIFIC REPORTS, 7, 9 pages. doi:10.1038/s41598-017-07151-6
Tilted resonators in a triangular elastic lattice: chirality, Bloch waves and negative refraction
Tallarico, D., Movchan, N. V., Movchan, A. B., & Colquitt, D. J. (2017). Tilted resonators in a triangular elastic lattice: chirality, Bloch waves and negative refraction. Journal of the Mechanics and Physics of Solids, 103, 236-256. doi:10.1016/j.jmps.2017.03.007
Fluid-loaded metasurfaces
Dynamic homogenisation of Maxwell’s equations with applications to photonic crystals and localised waveforms on gratings
Maling, B. J., Colquitt, D. J., & Craster, R. V. (2017). Dynamic homogenisation of Maxwell’s equations with applications to photonic crystals and localised waveforms on gratings. Wave Motion, 69, 35-49. doi:10.1016/j.wavemoti.2016.11.003
Seismic metasurfaces: Sub-wavelength resonators and Rayleigh wave interaction
Colquitt, D. J., Colombi, A., Craster, R. V., Roux, P., & Guenneau, S. R. L. (2017). Seismic metasurfaces: Sub-wavelength resonators and Rayleigh wave interaction. Journal of the Mechanics and Physics of Solids, 99, 379-393. doi:10.1016/j.jmps.2016.12.004
Elastic Wave Control Beyond Band-Gaps: Shaping the Flow of Waves in Plates and Half-Spaces with Subwavelength Resonant Rods
Colombi, A., Craster, R. V., Colquitt, D., Achaoui, Y., Guenneau, S., Roux, P., & Rupin, M. (2017). Elastic Wave Control Beyond Band-Gaps: Shaping the Flow of Waves in Plates and Half-Spaces with Subwavelength Resonant Rods. Frontiers in Mechanical Engineering, 3. doi:10.3389/fmech.2017.00010
Mathematical Modelling of Waves in Multi-Scale Structured Media
Movchan, A. B., Movchan, N. V., Jones, I. S., & Colquitt, D. J. (2017). Mathematical Modelling of Waves in Multi-Scale Structured Media. doi:10.1201/9781315155388
2016
Asymptotics of dynamic lattice Green's functions
Vanel, A. L., Craster, R. V., Colquitt, D. J., & Makwana, M. (2016). Asymptotics of dynamic lattice Green's functions. WAVE MOTION, 67, 15-31. doi:10.1016/j.wavemoti.2016.05.010
Conversion and reflection of Rayleigh waves with the seismic metawedge
Colombi, A., Roux, P., Colquitt, D., Craster, R., & Guenneau, S. (2016). Conversion and reflection of Rayleigh waves with the seismic metawedge. In 2016 10TH INTERNATIONAL CONGRESS ON ADVANCED ELECTROMAGNETIC MATERIALS IN MICROWAVES AND OPTICS (METAMATERIALS) (pp. 313-315). Retrieved from https://www.webofscience.com/
Dynamic homogenisation of Maxwell’s equations with applications to photonic crystals and localised waveforms on gratings
Maling, B. J., Colquitt, D. J., & Craster, R. V. (2016). Dynamic homogenisation of Maxwell’s equations with applications to photonic crystals and localised waveforms on gratings. Wave Motion. doi:10.1016/j.wavemoti.2016.11.003
New frontiers in elastic metamaterials for controlling surface waves
Colombi, A., Roux, P., Colquitt, D., Guenneau, S., Ageeva, V., Clark, M., & Craster, R. (2016). New frontiers in elastic metamaterials for controlling surface waves. The Journal of the Acoustical Society of America, 140(4), 3103. doi:10.1121/1.4969683
Parabolic metamaterials and Dirac bridges
Colquitt, D. J., Movchan, N. V., & Movchan, A. B. (2016). Parabolic metamaterials and Dirac bridges. Journal of the Mechanics and Physics of Solids, 65, 621-631. doi:10.1016/j.jmps.2016.05.006
Seismic metasurfaces: Sub-wavelength resonators and Rayleigh wave interaction
Tilted resonators in a triangular elastic lattice: chirality, Bloch waves and negative refraction
A seismic metamaterial: The resonant metawedge
Colombi, A., Colquitt, D., Roux, P., Guenneau, S., & Craster, R. V. (2016). A seismic metamaterial: The resonant metawedge. SCIENTIFIC REPORTS, 6, 6 pages. doi:10.1038/srep27717
Cymatics for the cloaking of flexural vibrations in a structured plate
Misseroni, D., Colquitt, D. J., Movchan, A. B., Movchan, N. V., & Jones, I. S. (2016). Cymatics for the cloaking of flexural vibrations in a structured plate. SCIENTIFIC REPORTS, 6, 11 pages. doi:10.1038/srep23929
2015
Transformation elastodynamics and cloaking for flexural waves
Parabolic Metamaterials and Dirac Bridges
Cymatics for the cloaking of flexural vibrations in a structured plate
The homogenisation of Maxwell's equations with applications to photonic crystals and localised waveforms on metafilms
High frequency homogenisation for elastic lattices
Colquitt, D., Craster, R. V., & Makwana, M. (2015). High frequency homogenisation for elastic lattices. The Quarterly Journal of Mechanics and Applied Mathematics, 68(2), 203-230. doi:10.1093/qjmam/hbv005
Rayleigh-Bloch waves along elastic diffraction gratings
Colquitt, D., Craster, R. V., Antonakakis, T., & Guenneau, S. (2015). Rayleigh-Bloch waves along elastic diffraction gratings. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 471(2173). doi:10.1098/rspa.2014.0465
2014
Transformation elastodynamics and cloaking for flexural waves
Colquitt, D. J., Brun, M., Gei, M., Movchan, A. B., Movchan, N. V., & Jones, I. S. (2014). Transformation elastodynamics and cloaking for flexural waves. Journal of the Mechanics and Physics of Solids, 72, 131-143. doi:10.1016/j.jmps.2014.07.014
Transformation cloaking and radial approximations for flexural waves in elastic plates
Brun, M., Colquitt, D. J., Jones, I. S., Movchan, A. B., & Movchan, N. V. (2014). Transformation cloaking and radial approximations for flexural waves in elastic plates. NEW JOURNAL OF PHYSICS, 16, 22 pages. doi:10.1088/1367-2630/16/9/093020
High frequency homogenisation for elastic lattices
Transformation cloaking and radial approximations for flexural waves in elastic plates
2013
Making waves round a structured cloak: lattices, negative refraction and fringes
Colquitt, D. J., Jones, I. S., Movchan, N. V., Movchan, A. B., Brun, M., & McPhedran, R. C. (2013). Making waves round a structured cloak: lattices, negative refraction and fringes. PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 469(2157), 24 pages. doi:10.1098/rspa.2013.0218
Making Waves Round a Structured Cloak: Lattices, Negative Refraction and Fringes
Localisation for a line defect in an infinite square lattice
Localization for a line defect in an infinite square lattice
Colquitt, D. J., Nieves, M. J., Jones, I. S., Movchan, A. B., & Movchan, N. V. (2013). Localization for a line defect in an infinite square lattice. PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 469(2150), 23 pages. doi:10.1098/rspa.2012.0579
Localization for a line defect in an infinite square lattice
Colquitt, D. J., Nieves, M. J., Jones, I. S., Movchan, A. B., & Movchan, N. V. (2013). Localization for a line defect in an infinite square lattice. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 469(2150), 20120579. doi:10.1098/rspa.2012.0579
Mathematical modelling of the dynamic response of metamaterial structures
Colquitt, D. J. (2013, June 1). Mathematical modelling of the dynamic response of metamaterial structures. (PhD Thesis, University of Liverpool).
2012
Trapping of a crack advancing through an elastic lattice
Colquitt, D. J., Nieves, M. J., Jones, I. S., Movchan, N. V., & Movchan, A. B. (2012). Trapping of a crack advancing through an elastic lattice. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 61, 129-141. doi:10.1016/j.ijengsci.2012.06.016
Dynamic anisotropy and localization in elastic lattice systems
Colquitt, D. J., Jones, I. S., Movchan, N. V., Movchan, A. B., & McPhedran, R. C. (2012). Dynamic anisotropy and localization in elastic lattice systems. WAVES IN RANDOM AND COMPLEX MEDIA, 22(2), 143-159. doi:10.1080/17455030.2011.633940
2011
Dispersion and localization of elastic waves in materials with microstructure
Colquitt, D. J., Jones, I. S., Movchan, N. V., & Movchan, A. B. (2011). Dispersion and localization of elastic waves in materials with microstructure. PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 467(2134), 2874-2895. doi:10.1098/rspa.2011.0126
Elastic Waves and Defect Modes in Micropolar Lattices
Colquitt, D. J., Movchan, A. B., Movchan, N. V., & Jones, I. S. (2011). Elastic Waves and Defect Modes in Micropolar Lattices. In VIBRATION PROBLEMS ICOVP 2011 Vol. 139 (pp. 707-713). doi:10.1007/978-94-007-2069-5_95
Elastic Waves and Defect Modes in Micropolar Lattices
Colquitt, D. J., Movchan, A. B., Movchan, N. V., & Jones, I. S. (2011). Elastic Waves and Defect Modes in Micropolar Lattices. In The 10th International Conference on Vibration Problems (pp. 707-713). Prague: Springer Netherlands. doi:10.1007/978-94-007-2069-5_95
2010
Frequency related localisation of harmonic elastic waves in stratified welds
Colquitt, D. J., Movchan, A. B., Jones, I. S., & Daniels, W. (2010). Frequency related localisation of harmonic elastic waves in stratified welds. ACTA MECHANICA SINICA, 26(4), 567-572. doi:10.1007/s10409-010-0350-7
Frequency related localisation of harmonic elastic waves in stratified welds
Colquitt, D. J., Movchan, A. B., Jones, I. S., & Daniels, W. (2010). Frequency related localisation of harmonic elastic waves in stratified welds. Acta Mechanica Sinica, 26(4), 567-572. doi:10.1007/s10409-010-0350-7