Trosolwyg
My main research area is the characterisation of lightning, electrical discharges and related phenomena primarily via the development of optical and spectral techniques and other non-contact methods. My research is cross-disciplinary across physics, electrical engineering, mechanical engineering and material science. I am primarily based in the Morgan-Botti Lightning Laboratory within the Advanced High Voltage Engineering Research Centre.
Cyhoeddiad
2024
- Hills, M., Lugg-Widger, P., Stone, C., Peretto, N., Haddad, A. and Mitchard, D. 2024. Spectroscopic measurements of light emissions from high current arcs. Presented at: Cardiff University Engineering Research Conference 2023, Cardiff, UK, 12-14 July 2023 Presented at Spezi, E. and Bray, M. eds.Proceedings of the Cardiff University Engineering Research Conference 2023. Cardiff: Cardiff University Press pp. 158-162., (10.18573/conf1.aj)
2023
- Xu, X., Millen, S. L. J., Lee, J., Abdelal, G., Mitchard, D., Wisnom, M. R. and Murphy, A. 2023. Developing test methods for compression after lightning strikes. Applied Composite Materials (10.1007/s10443-022-10100-w)
2021
- Mitchard, D., Widger, P. and Haddad, A. 2021. Analysis of light emission and Schlieren from short gap high voltage streamers representing lightning impulses. Scientific Reports 11(1), article number: 24324. (10.1038/s41598-021-03839-y)
2020
- Widger, P., Hills, M. and Mitchard, D. 2020. Schlieren images of negative streamer and leader formations in CO2 and a CF3I-CO2 electronegative gas mixture. Applied Sciences 10(22), article number: 8006. (10.3390/app10228006)
2019
- Mitchard, D., Widger, P., Clark, D., Carr, D. and Haddad, A. 2019. Optical emission spectra of high current and high voltage generated arcs representing lightning. Applied Physics Letters 114(16), article number: 164103. (10.1063/1.5092875)
2017
- Mitchard, D., Clark, D., Carr, D., Stone, C. and Haddad, A. 2017. Method for recording broadband high resolution emission spectra of laboratory lightning arcs. Journal of Visualized Experiments 150, article number: e56336. (10.3791/56336)
- Mitchard, D., Jamoshid, N. S., Clark, D., Carr, D. and Haddad, A. 2017. Investigation of lightning direct effects on aircraft materials. Presented at: 2016 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC), Toulouse, France, 2-4 November 20162016 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). IEEE, (10.1109/ESARS-ITEC.2016.7841393)
- Mitchard, D., Clark, D., Carr, D. and Haddad, A. 2017. Investigation of the effect of initiation wires on lighting arcs using spectral and high-speed imaging techniques. Presented at: International Symposium on High Voltage Engineering, Winc Aichi, Nagoya, Aichi, Japan, 13 - 15 September 2017.
- Mitchard, D., Jamoshid, N. S., Stone, C. and Haddad, A. 2017. Experimental and theoretical evaluation of aluminium deflection due to lightning strikes. Presented at: 19th International Conference on Lightning Protection, Dubai, UAE, 30 - 31 January 2017.
- Clark, D., Carr, D., Mitchard, D., Stone, C. and Haddad, A. 2017. Spectroscopic techniques for temperature measurement of laboratory generated lightning arcs. Presented at: 20th International Symposium on High Voltage Engineering, Buenos Aires, Argentina, 28 August - 1 September 2017.
2016
- Mitchard, D., Jamoshid, N. S., Stone, C. and Haddad, A. 2016. Experimental and theoretical evaluation of aluminium deflection due to lightning strikes. Presented at: Lightning Protection (ICLP), 2016 33rd International Conference, Estoril, Portugal, 25-30 Sept. 20162016 33rd International Conference on Lightning Protection (ICLP). IEEE, (10.1109/ICLP.2016.7791428)
- Mitchard, D., Clark, D., Carr, D. and Haddad, A. 2016. Technique for the comparison of light spectra from natural and laboratory generated lightning current arcs. Applied Physics Letters 109(9), article number: 93502. (10.1063/1.4962205)
- Crivelli, D., Vinestock, T., Eaton, M. J., Mitchard, D. and Pullin, R. 2016. Acoustic emission for assessment of impact and lightning damage to woven carbon fibre laminates. Presented at: 8th European Workshop On Structural Health Monitoring (EWSHM 2016), Bilbao, Spain, 5-8 July 20168th European Workshop On Structural Health Monitoring (EWSHM 2016).
2015
- Evans, P. R., Featherston, C. A., Eaton, M. J., McCrory, J. and Mitchard, D. 2015. Mechanical forces due to lightning strikes to aircraft: a pseudo-stereo DIC technique for measuring full-field displacement. Presented at: 10th International Conference on Experimental Mechanics, Heriot-Watt University, Edinburgh, UK, 1-3 September 2015.
- Mitchard, D., Clark, D., Stone, C. and Haddad, A. 2015. Preliminary results for spectrographic lightning arc measurements. Presented at: ICOLSE 2015 - International Conference on Lightning and Static Electricity, Toulouse, France, 9-11 September 2015Proceedings of the 2015 International Conference on Lightning and Static Electricity. ICOLSE pp. 50-55., (10.1049/ic.2015.0197)
- Clark, D., Mitchard, D., Stone, C. and Haddad, A. 2015. Spectrographic characterisation of high-current arcs for a lightning direct-effects laboratory. Presented at: ISH2015 - 19th International Symposium on High Voltage Engineering, Pilsen, Czech Republic, 23-28 August 2015. Proceedings of the 19th International Symposium on High Voltage Engineering: ISH
- Jamoshid, N. S., Griffiths, H., Haddad, A. and Mitchard, D. 2015. Modelling the deflection of carbon fibre reinforced polymer materials under lightning strikes. Presented at: [International Conference on Lightning & Static Electricity (ICOLSE 2015), Toulouse, 9-11 September 2015International Conference on Lightning & Static Electricity (ICOLSE 2015), Vol. 6. pp. 42., (10.1049/ic.2015.0189)
Articles
- Xu, X., Millen, S. L. J., Lee, J., Abdelal, G., Mitchard, D., Wisnom, M. R. and Murphy, A. 2023. Developing test methods for compression after lightning strikes. Applied Composite Materials (10.1007/s10443-022-10100-w)
- Mitchard, D., Widger, P. and Haddad, A. 2021. Analysis of light emission and Schlieren from short gap high voltage streamers representing lightning impulses. Scientific Reports 11(1), article number: 24324. (10.1038/s41598-021-03839-y)
- Widger, P., Hills, M. and Mitchard, D. 2020. Schlieren images of negative streamer and leader formations in CO2 and a CF3I-CO2 electronegative gas mixture. Applied Sciences 10(22), article number: 8006. (10.3390/app10228006)
- Mitchard, D., Widger, P., Clark, D., Carr, D. and Haddad, A. 2019. Optical emission spectra of high current and high voltage generated arcs representing lightning. Applied Physics Letters 114(16), article number: 164103. (10.1063/1.5092875)
- Mitchard, D., Clark, D., Carr, D., Stone, C. and Haddad, A. 2017. Method for recording broadband high resolution emission spectra of laboratory lightning arcs. Journal of Visualized Experiments 150, article number: e56336. (10.3791/56336)
- Mitchard, D., Clark, D., Carr, D. and Haddad, A. 2016. Technique for the comparison of light spectra from natural and laboratory generated lightning current arcs. Applied Physics Letters 109(9), article number: 93502. (10.1063/1.4962205)
Conferences
- Hills, M., Lugg-Widger, P., Stone, C., Peretto, N., Haddad, A. and Mitchard, D. 2024. Spectroscopic measurements of light emissions from high current arcs. Presented at: Cardiff University Engineering Research Conference 2023, Cardiff, UK, 12-14 July 2023 Presented at Spezi, E. and Bray, M. eds.Proceedings of the Cardiff University Engineering Research Conference 2023. Cardiff: Cardiff University Press pp. 158-162., (10.18573/conf1.aj)
- Mitchard, D., Jamoshid, N. S., Clark, D., Carr, D. and Haddad, A. 2017. Investigation of lightning direct effects on aircraft materials. Presented at: 2016 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC), Toulouse, France, 2-4 November 20162016 International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC). IEEE, (10.1109/ESARS-ITEC.2016.7841393)
- Mitchard, D., Clark, D., Carr, D. and Haddad, A. 2017. Investigation of the effect of initiation wires on lighting arcs using spectral and high-speed imaging techniques. Presented at: International Symposium on High Voltage Engineering, Winc Aichi, Nagoya, Aichi, Japan, 13 - 15 September 2017.
- Mitchard, D., Jamoshid, N. S., Stone, C. and Haddad, A. 2017. Experimental and theoretical evaluation of aluminium deflection due to lightning strikes. Presented at: 19th International Conference on Lightning Protection, Dubai, UAE, 30 - 31 January 2017.
- Clark, D., Carr, D., Mitchard, D., Stone, C. and Haddad, A. 2017. Spectroscopic techniques for temperature measurement of laboratory generated lightning arcs. Presented at: 20th International Symposium on High Voltage Engineering, Buenos Aires, Argentina, 28 August - 1 September 2017.
- Mitchard, D., Jamoshid, N. S., Stone, C. and Haddad, A. 2016. Experimental and theoretical evaluation of aluminium deflection due to lightning strikes. Presented at: Lightning Protection (ICLP), 2016 33rd International Conference, Estoril, Portugal, 25-30 Sept. 20162016 33rd International Conference on Lightning Protection (ICLP). IEEE, (10.1109/ICLP.2016.7791428)
- Crivelli, D., Vinestock, T., Eaton, M. J., Mitchard, D. and Pullin, R. 2016. Acoustic emission for assessment of impact and lightning damage to woven carbon fibre laminates. Presented at: 8th European Workshop On Structural Health Monitoring (EWSHM 2016), Bilbao, Spain, 5-8 July 20168th European Workshop On Structural Health Monitoring (EWSHM 2016).
- Evans, P. R., Featherston, C. A., Eaton, M. J., McCrory, J. and Mitchard, D. 2015. Mechanical forces due to lightning strikes to aircraft: a pseudo-stereo DIC technique for measuring full-field displacement. Presented at: 10th International Conference on Experimental Mechanics, Heriot-Watt University, Edinburgh, UK, 1-3 September 2015.
- Mitchard, D., Clark, D., Stone, C. and Haddad, A. 2015. Preliminary results for spectrographic lightning arc measurements. Presented at: ICOLSE 2015 - International Conference on Lightning and Static Electricity, Toulouse, France, 9-11 September 2015Proceedings of the 2015 International Conference on Lightning and Static Electricity. ICOLSE pp. 50-55., (10.1049/ic.2015.0197)
- Clark, D., Mitchard, D., Stone, C. and Haddad, A. 2015. Spectrographic characterisation of high-current arcs for a lightning direct-effects laboratory. Presented at: ISH2015 - 19th International Symposium on High Voltage Engineering, Pilsen, Czech Republic, 23-28 August 2015. Proceedings of the 19th International Symposium on High Voltage Engineering: ISH
- Jamoshid, N. S., Griffiths, H., Haddad, A. and Mitchard, D. 2015. Modelling the deflection of carbon fibre reinforced polymer materials under lightning strikes. Presented at: [International Conference on Lightning & Static Electricity (ICOLSE 2015), Toulouse, 9-11 September 2015International Conference on Lightning & Static Electricity (ICOLSE 2015), Vol. 6. pp. 42., (10.1049/ic.2015.0189)
Ymchwil
Summary
My main research area is the characterisation of lightning, electrical discharges and related phenomena primarily via the development of optical and spectral techniques and other non-contact methods. My research is cross-disciplinary across physics, electrical engineering, mechanical engineering and material science. I am primarily based in the Morgan-Botti Lightning Laboratory within the Advanced High Voltage Engineering Research Centre.
Affiliations
Themes: Energy and Environment, Mechanics, Materials and Advanced Manufacturing
Centres and Groups: Advanced High Voltage Engineering Research Centre, Mechanical and Structural Performance Laboratory, Magnetics and Materials Research Group
Cross-Disciplinary Research: Aerospace, Materials
Facilities: Morgan-Botti Lightning Laboratory, Structural Performance Laboratory, Wolfson Centre for Magnetics
Projects
Jan 17 - Dec 20: "Lightning, an Invisible Driver of Background Tree Mortality in the Tropics" (led by Exeter University) Co-Investigator, NERC
Nov 16 – Nov 17: "Streak Camera for High-Speed Spectral Analysis" Co-Investigator, Research Infrastructure Fund
Jan 15 – Dec 16: Combined Travel Grants, Co-Investigator, Sêr Cymru NRN
Jan 15 – Dec 16: "Dynamic Capacitive Sensor for the Measurement of Millimetre Displacement of Carbon Composite Panels: Application to Aircraft Materials Subjected to Lightning Strikes" Co-Investigator, Sêr Cymru NRN
Apr 15 – Mar 17: "Musculoskeletal Research Centre" Co-Investigator, WEFO
Apr 14 – Jul 14: "GW4 Initiator Fund: Lightning" Co-Investigator, GW4 Initiator Fund
Jun 14 – Aug 14: "Optimisation of the Morgan-Botti Lightning Laboratory Control and Data Acquisition System" Co-Investigator, CUROP
Jun 13 – Dec 14: "Lightning Effects on Aerospace Carbon Composite Materials, the Next Generation of Materials and Components" Manager/Specialist, WEFO A4B
Oct 13 – Sep 15: "Develop Autonomous Load Cells through Power Management Electronics, Wireless Communication and Energy Harvesting Technologies for Monitoring Applications" Facilitator, KTP
Jul 12 – Jun 13: "Business Gateway, Knowledge Transfer Centre Extension" Co-Investigator, WEFO A4B
Aug 12 – Aug 12: "Testing of Rucksacks" Co-Investigator, BCB International
Feb 12 – Apr 12: "Impact Strength Testing and Flow Testing" Facilitator, Fuel Defend Global
Jun 09 – Jul 12: "Knowledge Transfer Centre" Manager/Specialist, WEFO A4B
Addysgu
Summary
I teach in the areas of mathematics, physics and design within the Mechanical Engineering and supervise project and PhD students in lightning research across both Electrical Engineering and Mechanical Engineering.
Modules
Sep 17 - Jul 18: Control Theory
Sep 17 - Jul 18: AutoCAD
Sep 17 - Jul 18: Matlab
Laboratories
Sep 17 - Jul 18: Thermodynamics
PhD Students
Jan 15 - Dec 17: Deflection and Vibration of Carbon Composite Materials Struck by Generated Lightning, Co-supervisor
Student Projects
Jan 16 – Jun 16: Simulation of Mechanical Lightning Shock
Jan 15 – Jun 15: Digital Image Correlation of Materials Struck by Generated Lightning
CUROP Students
Jun 14 – Aug 14: CUROP Student, Optimisation of LabView Control Software
Summer Schools
Jun 13 – Jun 13: Headstart Summer School
Jun 11 – Jun 11: Headstart Summer School
Jun 10 – Jun 10: Headstart Summer School
Bywgraffiad
Education and Qualifications
2006: PhD, Particle Physics, Swansea University at CERN, Geneva
2002: MPhys, Master of Physics, Swansea University
Career Overview
Oct 17 onwards: Research Fellow, Morgan-Botti Lightning Laboratory, and Teacher, Mechanical Engineering, School of Engineering, Cardiff University
Apr 17 - Sep 17: Research Fellow, Wolfson Centre for Magnetics, School of Engineering, Cardiff University
Jan 15 - Mar 17: Research Fellow, Morgan-Botti Lightning Laboratory, School of Engineering, Cardiff University
Aelodaethau proffesiynol
MInstP, Aelod o'r Sefydliad Ffiseg, Sefydliad Ffiseg, Llundain.
Safleoedd academaidd blaenorol
Hydref 17 ymlaen: Cymrawd Ymchwil, Labordy Mellt Morgan-Botti, a Darlithydd, Peirianneg Fecanyddol, Ysgol Peirianneg, Prifysgol Caerdydd
Ebrill 17 - Medi 17: Cymrawd Ymchwil, Canolfan Magneteg Wolfson, Ysgol Peirianneg, Prifysgol Caerdydd
Ionawr 15 - Mawrth 17: Cymrawd Ymchwil, Labordy Mellt Morgan-Botti, Ysgol Peirianneg, Prifysgol Caerdydd
Meysydd goruchwyliaeth
Ardaloedd dan oruchwyliaeth
Mellt, ffenomenau mellt a rhyngweithiadau, synwyryddion ysgafn / electromagnetig ac offeryniaeth, delweddu cyflym, foltedd uchel / cerrynt uchel.
Cymdeithion Ymchwil
2023: Phillip Lugg-Widger
Myfyrwyr PhD
2022 - 2026: Bryniau Meirion
Contact Details
+44 29208 74975
Adeiladau'r Frenhines - Adeilad y Dwyrain, Ystafell E3.10, 5 The Parade, Heol Casnewydd, Caerdydd, CF24 3AA