Numerical Simulations of Extensional Ultrasonic Edge Waves for Detecting Impact Damage to the Edges of CFRP Composite Laminates

Autor: C. R. P. Courtney, Jun Yu Harry Chu

Publikováno v: 2021 IEEE International Ultrasonics Symposium (IUS).

An inspection technique has been demonstrated, by experimentation and numerical modelling that extensional edge waves can be used to detect and assess damage in composite laminates. Tuned piezoelectric transducers are attached to the plate edge to ge

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1ff68411711507296fd8fcd803870e45
https://doi.org/10.1109/ius52206.2021.9593520

In situ fabrication of carbon fibre–reinforced polymer composites with embedded piezoelectrics for inspection and energy harvesting applications

Autor: Christopher R. Bowen, Tao Wen, N. Gathercole, Xue Yan, C. R. P. Courtney, Yu Shi, Yu Jia

Publikováno v: Yan, X, Courtney, C R P, Bowen, C R, Gathercole, N, Wen, T, Jia, Y & Shi, Y 2020, ' In situ fabrication of carbon fibre–reinforced polymer composites with embedded piezoelectrics for inspection and energy harvesting applications ', Journal of Intelligent Material Systems and Structures, vol. 31, no. 16, pp. 1910-1919 . https://doi.org/10.1177/1045389X20942315

Current in situ damage detection of fibre-reinforced composites typically uses sensors which are attached to the structure. This may make periodic inspection difficult for complex part geometries or in locations which are difficult to reach. To overc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8a5d17d3e7e1d3439ba05f2f1806bbb
https://purehost.bath.ac.uk/ws/files/211126761/embedded_sensor_20200423.pdf

Proof of principle study of ultrasonic particle manipulation by a circular array device

Autor: C. R. P. Courtney, Paul D. Wilcox, Bruce W. Drinkwater, A. Grinenko

Publikováno v: Proceedings. Mathematical, Physical, and Engineering Sciences / The Royal Society

A feasibility study of a circular ultrasonic array device for acoustic particle manipulation is presented. A general approach based on Green's function is developed to analyse the underlying properties of a circular acoustic array. It allows the size

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f45b893fbae68fb4b573816d8a65a3c
https://doi.org/10.1098/rspa.2012.0232

Structural health monitoring of fixed offshore structures using the bicoherence function of ambient vibration measurements

Autor: C. R. P. Courtney, Andrew Hillis

Publikováno v: Journal of Sound and Vibration. 330:1141-1152

This paper investigates the use of the bicoherence function of measured structural acceleration to provide automatic early detection of damage in an offshore structure. A detailed simulation model is developed, including realistic wave loading, and i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b496c3df64ec72ac2a4b44540b5fe8b
https://doi.org/10.1016/j.jsv.2010.09.019

Coulomb imaging of H2+ nuclear wavefunctions using the pilot-wave theory of quantum mechanics

Autor: C. R. P. Courtney, Leszek J. Frasinski

Publikováno v: Physics Letters A. 318:30-35

The molecular hydrogen ion in intense (>10 15 W/cm 2 ) laser fields is modelled assuming instant ionization followed by Coulomb explosion. The initial vibrational state is reconstructed from the final proton energy spectrum. A semi-classical iterativ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b05a56efd25de31171a1eb1287000e5b
https://doi.org/10.1016/j.physleta.2003.09.022