Professor Matthew Marshall

MEng (Hons), PhD

Department of Mechanical Engineering

Professor

+44 114 222 7737

Sir Frederick Mappin Building

Full contact details

Professor Matthew Marshall
Department of Mechanical Engineering
Sir Frederick Mappin Building
Mappin Street
Sheffield
S1 3JD

Profile

Matthew Marshall is a lecturer in tribology in the Department of Mechanical Engineering. He has a first class degree in Mechanical Engineering from the University of Sheffield and a PhD in Tribology.

Upon completion of his PhD, Matthew worked for the Advanced Manufacturing Research Centre (AMRC), undertaking research work on behalf of Rolls-Royce investigating the manufacture of aero-engine casings in heat resistant super-alloys.

He joined the department in December 2008, and works within a tribology group that specialises in industrial wear and lubrication problems, as well as in the development of metrology tools for tribology. Matthew teaches Tribology of Machine Elements to undergraduate and postgraduate students.

Research interests

Matthew's research work covers a range of industrial friction, wear, and contact mechanics problems. This work involves a range of experimental as well as analytical techniques, and in many cases includes the testing of full scale engineering components.

One research theme has focused on tribology in aero-engines, with specific work undertaken investigating the contact mechanics and wear of abradable linings in compressors. This work has been performed in conjunction with Rolls-Royce, and has involved the development of a novel test platform capable of accelerating compressor blades to velocities in excess of 100 m/s.

Recently, this work has been extended to consider the use of composite materials as linings in certain shaft based applications.

Another activity is concerned with manufacturing tribology, and the measurement of friction from cutting tools. At present this work has focused on the development of a novel lathe based friction test device; where testing is performed at high speeds in order to replicate actual cutting conditions.

The information gather through this type of testing is useful in the selection of coatings for cutting tool inserts, as well as in determining appropriate cutting fluids for a given application.

During his post-graduate study Matthew researched the use of ultrasound as a non-intrusive technique for quantifying the contact pressure distribution in a variety of machine tool contacts. To date contact mechanics and ultrasound remains an area within which he is an active researcher.

His work has focused on a range of contacts including; the rail / wheel contact in railway applications, interfacial pressure distributions in bolted joints, and stresses developed at the interface in simple interference fits.

This work culminated in the application of the technique to a full size railway wheel-set, where the contact pressures in the interface between the wheel and the axel were quantified for both a new and existing wheel-set, in order to validate FE modelling results. Recently, Matthew has been involved in applying this technique to dynamic contacts.

Research projects

Wear of abradable linings in aero-engine compressors.
Wear of wind turbine rotor bearings
Measurement of cutting tool friction
The application of standard features in the design and manufacture of aero-engine components
The use of ultrasound in the measurement of contact pressures in machine tool contacts
Determination of contact pressures in dynamic contact situations
Determination of the effect of washers on clamping pressure relaxation in bolted joints
Interference fit design in shrink fit tool holders

Publications

Journal articles

Fukagai S, Marshall M & Lewis R (2022) Transition of the friction behaviour and contact stiffness due to repeated high-pressure contact and slip. Tribology International. View this article in WRRO
Rahimov E, Watson M, Hadjisoteriou A & Marshall M (2022) Investigation of wear mechanisms in AlSi-polyester abradable - Ti(6Al4V) blade contacts using stroboscopic imaging. Wear, 494-495.
Mesaritis M, Shamsa M, Cuervo P, Santa J, Toro A, Marshall M & Lewis R (2020) A laboratory demonstration of rail grinding and analysis of running roughness and wear. Wear, 456-457. View this article in WRRO
Reid A, Marshall M, Martinez I, Moorby S, Connolley T, Mostafavi M & Kabra S (2020) Measurement of strain evolution in overloaded roller bearings using time-of-flight neutron diffraction. Materials and Design, 190. View this article in WRRO
Tang N, Zhang B, Lord C & Marshall M (2020) Identification of blade operational mode shapes during wear of abradable coating. Journal of Sound and Vibration, 472. View this article in WRRO
Fuentes R, Dwyer-Joyce RS, Marshall MB, Wheals J & Cross EJ (2020) Detection of sub-surface damage in wind turbine bearings using acoustic emissions and probabilistic modelling. Renewable Energy, 147(1), 776-797. View this article in WRRO
Reid A, Simpson C, Martinez I, Kabra S, Connolley T, Magdysyuk O, Charlesworth C, Marshall M & Mostafavi M (2019) Measurement of strain evolution in overloaded roller bearings using energy dispersive X-ray diffraction. Tribology International, 140. View this article in WRRO
Alhadeff L, Marshall M & Slatter T (2019) The influence of tool coating on the length of the normal operating region (steady-state wear) for micro end mills. Precision Engineering, 60, 306-319. View this article in WRRO
Reid A, Marshall M, Kabra S, Minniti T, Kockelmann W, Connolley T, James A, Marrow TJ & Mostafavi M (2019) Application of neutron imaging to detect and quantify fatigue cracking. International Journal of Mechanical Sciences, 159, 182-194. View this article in WRRO
Zhang B & Marshall MB (2019) Investigating material removal mechanism of Al-Si base abradable coating in labyrinth seal system. Wear, 426-427(Part A), 239-249. View this article in WRRO
Watson M, Christoforou P, Herrera P, Preece D, Carrell J, Harmon M, Krier P, Lewis S, Maiti R, Skipper W , Taylor E et al (2019) An analysis of the quality of experimental design and reliability of results in tribology research. Wear, 426-427(Part B), 1712-1718. View this article in WRRO
Stephen TJ, Lewis R, Marshall MB, Beaty P & Hardwick C (2019) Ultrasonic monitoring of insulated block joints. Proceedings of the Institution of Mechanical Engineers. Part F: Journal of Rail and Rapid Transit, 233(3), 251-261. View this article in WRRO
Alhadeff L, Marshall M, Curtis D & Slatter T (2019) Protocol for tool wear measurement in micro-milling. Wear, 420-421, 54-67. View this article in WRRO
Alhadeff LL, Marshall MB & Slatter T (2019) Wear data for trials machining brass, titanium grade 2 and Hastelloy in order to characterize wear of micro-tools. Data in Brief, 22, 574-577. View this article in WRRO
Zhang B & Marshall MB (2018) Investigating the application of a honeycomb abradable lining in the turbine stage of an aero-engine. Tribology International, 125, 66-74. View this article in WRRO
Reid A, Martinez I, Marshall MB, Minniti T, Kabra S, Kockelmann W, Connolley T & Mostafavi M (2018) Mapping of axial plastic zone for roller bearing overloads using neutron transmission imaging. Materials and Design, 156, 103-112. View this article in WRRO
Watson M & Marshall MB (2018) Wear mechanisms at the blade tip seal interface. Wear, 404-405, 176-193. View this article in WRRO
Watson M & Marshall MB (2017) A Novel Image Segmentation Approach for Microstructure Modelling. Coatings, 7(10). View this article in WRRO
Stephen J, Marshall M & Lewis R (2017) Relaxation of contact pressure and self-loosening in dynamic bolted joints. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 231(18), 3462-3475. View this article in WRRO
Gill WS, Marshall MB, Lewis R, Hall B & Bolton S (2017) Failure Analysis of Pipeline Indents using Steel Precision Balls under Subsea Conditions. Tribology International. View this article in WRRO
Mostafavi M, Collins DM, Peel MJ, Reinhard C, Barhli SM, Mills R, Marshall MB, Dwyer-Joyce RS & Connolley T (2017) Dynamic contact strain measurement by time-resolved stroboscopic energy dispersive synchrotron X-ray diffraction. Strain, 53(2). View this article in WRRO
Fois N, Watson M & Marshall MB (2017) The influence of material properties on the wear of abradable materials. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 231(2), 240-253. View this article in WRRO
Fuentes R, Howard TP, Marshall MB, Cross EJ & Dwyer-Joyce RS (2016) Observations on acoustic emissions from a line contact compressed into the plastic region. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 230(11), 1371-1376. View this article in WRRO
Tronci G & Marshall MB (2016) Understanding the behaviour of silver as a low friction coating in aerospace fasteners. Tribology International, 100, 162-170. View this article in WRRO
Beaty P, Temple B, Marshall MB & Lewis R (2016) Experimental modelling of lipping in insulated rail joints and investigation of rail head material improvements. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 230(4), 1375-1387. View this article in WRRO
Merino Perez JL, Royer R, Merson E, Lockwood A, Ayvar-Soberanis S & Marshall MB (2016) Influence of workpiece constituents and cutting speed on the cutting forces developed in the conventional drilling of CFRP composites. Composite Structures, 140, 621-629. View this article in WRRO
Suzuki H, Marshall MB, Sims ND & Dwyer-Joyce RS (2016) Design and implementation of a non-resonant vibration-assisted machining device to create bespoke surface textures. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 231(5), 860-875. View this article in WRRO
Watson M, Fois N & Marshall MB (2015) Effects of blade surface treatments in tip–shroud abradable contacts. Wear, 338-339, 268-281. View this article in WRRO
Mohammed A, Marshall MB & Lewis R (2015) Development of a method for assessing erosive wear damage on dies used in aluminium casting. Wear, 332-333, 1215-1224. View this article in WRRO
Fois N, Watson M, Stringer J & Marshall MB (2015) An investigation of the relationship between wear and contact force for abradable materials. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 229(2), 136-150. View this article in WRRO
Singleton RI, Marshall MB, Lewis R & Evans G (2014) Rail Grinding for the 21st Century – Taking a Lead from the Aerospace Industry. Proc. IMechE Part F: Journal of Rail and Rapid Transit. View this article in WRRO
Stephen TJ, Marshall MB & Lewis R (2014) An Investigation into Contact Pressure Distribution in Bolted Joints. Proc. IMechE Part C: Journal of Mechanical Engineering Sciences.
Antoniadou I, Howard TP, Dwyer-Joyce RS, Marshall MB, Naumann J, Dervilis N & Worden K (2014) Envelope analysis using the Teager-Kaiser Energy operator for condition monitoring of a wind turbine bearing. Applied Mechanics and Materials, 564, 170-175.
Fois N, Stringer J & Marshall MB (2013) Adhesive transfer in aero-engine abradable linings contact. Wear, 304(1-2), 202-210.
Vail JR, Mills RS, Stephen JT, Marshall MB & Dwyer-Joyce RS (2013) An ultrasonic method for measuring fluid penetration rate into threaded contacts. Tribology International, 67, 21-26. View this article in WRRO
Stringer J & Marshall MB (2012) High speed wear testing of an abradable coating. Wear, 294-295, 257-263.
Rovira A, Roda A, Lewis R & Marshall MB (2012) Application of Fastsim with variable coefficient of friction using twin disc experimental measurements. Wear, 274-275, 109-126.
Marshall MB, Lewis R, Howard T & Brunskill H (2011) Ultrasonic Measurement of Self Loosening in Bolted Joints. Journal of Mechanical Engineering Sciences, Proceedings of the IMechE Part C.
Rovira A, Roda A , Marshall MB, Brunskill HB & Lewis R (2011) Experimental and numerical modelling of wheel–rail contact and wear. Wear, 271(5-6), 911-924.
Rovira A, Roda A, Lewis R & Marshall MB (2011) Application of Fastsim with variable coefficient of friction using twin disc experimental measurements. Wear.
Marshall MB, Zainal I & Lewis R (2011) Influence of the interfacial pressure distribution on loosening of bolted joints. Strain, 47(SUPPL. 2), 65-78.
Lewis R, Yoxall A & Marshall MB (2008) Comparison of numerical and ultrasonic techniques for quantifying interference fit pressures. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 222(7), 1125-1130.
Lewis R, Yoxall A, Marshall MB & Canty LA (2008) Characterising pressure and bruising in apple fruit. Wear, 264(1-2), 37-46. View this article in WRRO
Marshall MB, Lewis R, Dwyer-Joyce RS, Olofsson U & Björklund S (2006) Experimental characterization of wheel-rail contact patch evolution. Journal of Tribology, 128(3), 493-504. View this article in WRRO
Marshall MB, Lewis R & Dwyer-Joyce RS (2006) Characterisation of contact pressure distribution in bolted joints. Strain, 42(1), 31-43. View this article in WRRO
Green DA, Lewis R, Marshall MB & Dwyer-Joyce RS (2006) Ultrasonic measurement of contact pressures in automotive component contacts. SAE Technical Papers.
Lewis R, Marshall MB & Dwyer-Joyce RS (2005) Measurement of interface pressure in interference fits. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 219(2), 127-139. View this article in WRRO
Marshall MB, Lewis R & Drinkwater W (2004) An ultrasonic approach for contact stress mapping in machine joints and concentrated contacts. The Journal of Strain Analysis for Engineering Design, 39(6), 745-750.
Marshall MB, Lewis R, Drinkwater BW & Dwyer-Joyce RS (2004) An ultrasonic approach for contact stress mapping in machine joints and concentrated contacts. Journal of Strain Analysis for Engineering Design, 39(4), 339-350. View this article in WRRO
Baillieu A, Parody A, Rahimov E, Garcia Panizo J & Marshall M () In-Situ Measurements of Thermal-Mechanical Wear in Blade-Abradable Liner Contacts. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science.
Zhang B, Lewis R & Marshall M () Investigating Al-Si base Abradable Material Removal Mechanism with Axial Movement in Labyrinth Seal System. Wear.
Marshall MB, Lewis R, Dwyer-Joyce RS, Demilly F & Flament Y () Ultrasonic Measurement of Railway Wheel Hub/Axle Press-Fit Contact Pressures. Journal of Rail and Rapid Transit, Proceedings of the IMechE Part F.
Alhadeff L, Marshall M, Curtis D & Slatter T () Applying Experimental Micro-tool wear Measurement techniques to Industrial Environments. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture.
Duboust N, Watson M, Marshall M, O’Donnel GE & Kerrigan K () Towards intelligent CFRP composite machining: Surface analysis methods and statistical data analysis of machined fibre laminate surfaces. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 095440542096092-095440542096092.
Zhang B, Lewis R & Marshall M () An Investigation into the Role of Specimen Geometry when Undertaking Tribological Testing on Seal Fin Components. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science.
Liu A, Marshall M, Rahimov E & Panizo J () Investigation of Wear Mechanics and Behaviour of NiCr Metallic Foam Abradables. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science.
Fukagai S, Watson M, Brunskill H, Hunter A, Marshall M & Lewis R () In-situ Evaluation of Contact Stiffness in a Slip Interface with different Roughness Conditions using Ultrasound Reflectometry. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences.

Conference proceedings papers

Lewis R, Mesaritis M, Taiwo G, Marshall M, Krier P, Ferriday P, Buckley-Johnstone L, Lanigan J, Lewis S, Yildirimli K , Lu P et al (2022) IMPROVING THE WHEEL/RAIL CONTACT PERFORMANCE THROUGH LASER CLADDING OF RAIL, HIGH SPEED RAIL GRINDING AND RAIL CLEANING: CASE STUDIES IN GOING FROM THE LAB TO THE FIELD. CM 2022 - 12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, Conference Proceedings (pp 477-483)
Taiwo G, Marshall M, Mesaritis M & Lewis R (2022) AN EXPERIMENTAL INVESTIGATION INTO THE SUPERABRASIVE GRINDING OF RAIL. CM 2022 - 12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, Conference Proceedings (pp 358-363)
Slatter T, Marshall M, Curtis D & Alhadeff L (2019) Tool Coatings and their Influence on the Length of Steady-State Wear Region for Micro End Mills. Extended Abstracts from the 2019 STLE Tribology Frontiers Conference. Chicago, IL, USA, 21 October 2019 - 23 October 2019.
Taylor C, Hernandez S, Marshall M & Broderick M (2018) Cutting fluid application for titanium alloys Ti-6Al-4V and Ti-10V-2Fe-3Al in a finish turning process. Procedia CIRP, Vol. 77 (pp 441-444), 25 June 2018 - 27 June 2018. View this article in WRRO
Alhadeff LLM, Curtis DT, Marshall MB & Slatter T (2018) The Application of Wire Electrical Discharge Machining (WEDM) in the Prototyping of Miniature Brass Gears. Procedia CIRP, Vol. 77 (pp 642-645), 25 June 2018 - 27 June 2018. View this article in WRRO
Reid A, Marshall M, Kabra S & Mostafavi M (2017) Fatigue crack initiation identification and quantification with Bragg edge strain tomography. ICF 2017 - 14th International Conference on Fracture, Vol. 1 (pp 364-365)
Martinez I, Marshall M & Antoniadou I (2017) PZT sensors benchmarking and a wavelet transform approach for acoustic emission source location. 24th International Congress on Sound and Vibration, ICSV 2017
Beaty P, Lewis R, Temple B & Marshall MB (2014) Experimental modelling of rail end lipping in insulated joints. Civil-Comp Proceedings, Vol. 104
Zhou L, Brunskill HP, Lewis R, Marshall MB & Dwyer-Joyce RS (2014) Dynamic characterisation of the wheel/rail contact using ultrasonic reflectometry. Civil-Comp Proceedings, Vol. 104
Suzuki H, Marshall M & Dwyer-Joyce R (2014) Measurement of lubricant film thickness in a gearbox journal bearing with ultrasonic reflection. 5th World Tribology Congress, WTC 2013, Vol. 3 (pp 2367-2370)
Suzuki H, Marshall M, Sims N & Dwyer-Joyce R (2014) Surface texturing by vibration assisted machining with piezoelectric actuator. Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2014, Vol. 2 (pp 778-780)
Naumann JR, Dwyer-Joyce RS & Marshall MB (2013) Damage detection in rolling element bearings by acoustic emission outlier analysis. 5th World Tribology Congress, WTC 2013, Vol. 2 (pp 1810-1813) View this article in WRRO
Fois N, Stringer J & Marshall MB (2013) Adhesive transfer and cutting wear in aero-engine abradable lining contacts. 5th World Tribology Congress, WTC 2013, Vol. 2 (pp 1574-1577)
Singleton R, Marshall MB, Lewis R & Evans G (2012) Rail Grinding for the 21st Century – Taking a Lead from the Aerospace Industry. CM2012
Wheals JC, Hicks RJ, Guern P, Dwyer-Joyce R & Marshall M (2010) Engineering a 10MW gearbox for reliable offshore operation. European Wind Energy Conference and Exhibition 2010, EWEC 2010, Vol. 5 (pp 3964-3977)
Herbert S, Dwyer-Joyce R, Marshall M & Streatfield A (2010) Monitoring lubrication in wind turbine rolling bearings. European Wind Energy Conference and Exhibition 2010, EWEC 2010, Vol. 4 (pp 2538-2558)
Marshall MB, Lewis R & Dwyer-Joyce RS (2005) The Application of Ultrasound as a Tool for Studying Contact Stresses in Railway Engineering Component Contacts. Joint Rail
Lewis R, Marshall MB, Yoxall A & Canty LA (2005) Measuring pressure in apple contacts. Proceedings of the World Tribology Congress III - 2005 (pp 869-870)
Marshall MB, Lewis R, Dwyer-Joyce RS, Demilly F & Flament Y (2005) Ultrasonic measurement of wheel HUB/AXLE interference fit pressures. Proceedings of the World Tribology Congress III - 2005 (pp 239-240)
Marshall MB, Lewis R & Dwyer-Joyce RS (2005) The application of ultrasound as a tool for studying contact stresses in railway engineering component contacts. Proceedings of the 2005 ASME/IEEE Joint Rail Conference, Vol. 29 (pp 83-88) View this article in WRRO
Marshall MB, Lewis R, Dwyer-Joyce RS, Olofsson U & Bjorklund S (2004) Ultrasonic characterisation of a wheel/rail contact. Transient Processes in Tribology, Vol. 43 (pp 151-158)
Lewis R, Marshall MB & Dwyer-Joyce RS (2003) Ultrasonic characterisation of an interference fit. TRIBOLOGICAL RESEARCH AND DESIGN FOR ENGINEERING SYSTEMS (pp 449-458)
Jackson A, Webster MN, Dowson D, Medley JB, Lewis R, Marshall MB, Dwyer-Joyce RS, Xu H, Lubrecht AA & Hooke CJ (2002) Session XII tribological studies of dry and lubricated surfaces (3) - Lubricated. Tribology Series, Vol. 41 (pp 886-888)
FUENTES R, HOWARD T, MARSHALL M, CROS E, DWYER-JOYCE ROB, HUNTLEY TOM & HESTMO R () Detecting Damage on Wind Turbine Bearings Using Acoustic Emissions and Gaussian Process Latent Variable Models. Structural Health Monitoring 2015 View this article in WRRO
Zhou L, Brunskill HP, Lewis R, Marshall MB & Dwyer-Joyce RS () Dynamic Characterisation of the Wheel/Rail Contact using Ultrasonic Reflectometry. Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance, 8 April 2014 - 11 April 2014.
Marshall MB, Lewis R, Dwyer-Joyce RS, Oloffson U & Bjorklund S () Measuring Wheel/Rail Contact Stresses using Ultrasound. Proceedings of the 14th International Wheelset Congress. Florida, USA, 17 October 2004 - 21 October 2004. View this article in WRRO
Marshall MB, Lewis R, Dwyer-Joyce RS, Demilly F & Flament Y () Ultrasonic Characterisation of Wheel Hub/Axle Interference Fit Pressures. Proceedings of the 14th International Wheelset Congress. Florida, USA, 17 October 2004 - 21 October 2004. View this article in WRRO
Lewis R, Yoxall A, Marshall MB & Dwyer-Joyce RS () Comparison of Numerical and Ultrasonic Techniques for Quantifying Interference Fit Pressures. Proceedings of ICEM12, International Conference on Experimental Mechanics. Bari, Italy, 29 August 2004 - 2 September 2004.
Bjorklund S, Oloffson U, Marshall MB, Lewis R & Dwyer-Joyce RS () Contact Pressure Calculations on Rough Measured Surfaces. Proceedings of the 9th International Conference on the Metrology and Properties of Engineering Surfaces. Halmstad, Sweden, 10 September 2003 - 11 September 2003.
Lewis R, Dwyer-Joyce RS, Marshall MB & Yao C-W () Experimental Techniques for Characterising Wheel/Rail Contact Conditions. Proceedings of CM2006, 7th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, Vol. 2 (pp 83-88). Brisbane Australia, 24 September 2006 - 27 September 2006.
Marshall MB, Lewis R & Dwyer-Joyce RS () Contact Pressure Measurement In Bolted Joints. Proceedings of ICEM12, International Conference on Experimental Mechanics. Bari, Italy, 29 August 2004 - 2 September 2004.

Research group: Matthew is a member of the Leoonardo Tribology Centre.

Grants

Rolls-Royce Plc., Wear Characteristics of Composite Abradable Labyrinth Surfaces, February 2009 (with AMRC), £7,460.
Knowledge Transfer Project Fund, Friction of Cryogenic Materials in Cutting Tool Applications, March 2009, £8,360.
The Royal Society, Ultrasonic Characterisation of Clamping Pressure Relaxation in Vibrating Bolted Joints, July 2009, £14,530.
Rolls-Royce Plc., Wear Testing of Compressor Abradable Linings, November 2009 (with AMRC), £8,120.
Rolls-Royce Plc., Combustion Casing Standard Features for Design and Manufacture, December 2009 (with AMRC), £35,000.
Northern Way Innovation Program, Development and Rig Validation of Multi-life Bearing, December 2009 (R.S. Dwyer-Joyce), £33,040.

Teaching activities: MEC411 Tribology of Machine Elements