Professor Hui Long

BEng, MSc, PhD, CEng, FIMechE, SFHEA.

School of Mechanical, Aerospace and Civil Engineering

Professor of Mechanics of Materials

Departmental Director of Research and Innovation

h.long@sheffield.ac.uk
+44 114 222 7759

Sir Frederick Mappin Building

Full contact details

Professor Hui Long
School of Mechanical, Aerospace and Civil Engineering
Sir Frederick Mappin Building
Mappin Street
Sheffield
S1 3JD

Profile

Hui Long is Professor of Mechanics of Materials in the Department of Mechanical Engineering. She joined the Department as a Reader in 2012. Prior to this from 2003 to 2012, she was a Senior Lecturer and a Lecturer in the School of Engineering, Durham University. From 1996 to 2003, she worked as a research associate / fellow in the University of Strathclyde, Swansea University and Brunel University London. Before moving to the UK, she was an Associate Professor in the State Key Laboratory of Mechanical Transmissions, Chongqing University, China. She received her BEng, MSc and PhD degrees in Mechanical Engineering from Chongqing University in China.

Professor Hui Long is a Chartered Engineer, a Fellow of the Institution of Mechanical Engineers, and a Senior Fellow of Higher Education Academy. She acts as an Associate Editor of ASME Journal of Tribology and IMechE Proceedings Part B: Journal of Engineering Manufacture. She is a member of EPSRC Peer Review College and an expert reviewer of EU research proposals.

Professor Hui Long leads the Flexible Forming Research Group. She is also a member of the Leonardo Tribology Centre and the Structural Integrity Research Team.

Research interests

Professor Hui Long specialises in mechanics of materials, plasticity, contact mechanics and engineering failures and her current research activities centre on two broad fields of applications, in wind energy and manufacturing technology.

In wind energy, the current research areas include:

Wind turbine blade pitching bearing failures due to false Brinelling and fretting corrosion
Wind turbine gearbox bearing premature failures due to white etching cracking
Wind turbine drivetrain system dynamic load modelling under transient loading
Failure analysis and prediction using SCADA (Supervisory Control & Data Acquisition) data

In manufacturing, the research activities centre on flexible metal forming technologies:

Metal spinning process development and optimisation for material processing failure prevention
Incremental sheet forming process development for improved formability and precision
Non-linear finite element analysis and damage modelling of metal forming processes

Publications

Journal articles

Dai R & Long H (2024) Predicting subsurface inclusion initiated butterfly-wing cracking under rolling contact fatigue. International Journal of Fatigue, 188, 108533-108533.
Long H, Peng WX, Chang ZD, Zhu H, Jiang YJ & Li ZH (2024) New Rosette Tools for Developing Rotational Vibration-assisted Incremental Sheet Forming. Journal of Materials Processing Technology, 118311-118311.
Clarke BP, Nicholas G, Hart E, Long H & Dwyer-Joyce RS (2023) Loading on a wind turbine high-speed shaft gearbox bearing: ultrasonic field measurements and predictions from a multi-body simulation. Tribology International, 181.
Li ZH & Long H (2021) An analytical model integrated with toolpath design for wrinkling prediction in conventional spinning. Journal of Materials Processing Technology.
Nicholas G, Howard T, Long H, Wheals J & Dwyer-Joyce RS (2020) Measurement of roller load, load variation, and lubrication in a wind turbine gearbox high speed shaft bearing in the field. Tribology International, 148. View this article in WRRO
Al-Tameemi HA & Long H (2020) Finite element simulation of subsurface initiated damage from non-metallic inclusions in wind turbine gearbox bearings. International Journal of Fatigue, 131, 105347-105347. View this article in WRRO
Al-Tameemi HA, Long H & Dwyer-Joyce RS (2019) Damage characterisation of white etching cracks in a black oxide coated wind turbine gearbox bearing. Wear, 432-433, 102923-102923. View this article in WRRO
Ai S, Dai R & Long H (2019) Investigating formability enhancement in double side incremental forming by developing a new test method of tension under cyclic bending and compression. Journal of Materials Processing Technology. View this article in WRRO
Ai S & Long H (2019) A review on material fracture mechanism in incremental sheet forming. International Journal of Advanced Manufacturing Technology, 104(1-4), 33-61. View this article in WRRO
Childerhouse T & Long H (2019) Processing maps for wrinkle free and quality enhanced parts by shear spinning. Procedia Manufacturing, 29, 137-144. View this article in WRRO
Wilson S, Long H & Garter G (2018) Non-axisymmetric tube spinning by offset rotation. Procedia Manufacturing, 15, 1247-1254. View this article in WRRO
Bruce T, Long H & Dwyer-Joyce RS (2018) Threshold Maps for Inclusion-Initiated Micro-Cracks and White Etching Areas in Bearing Steel: The Role of Impact Loading and Surface Sliding. TRIBOLOGY LETTERS, 66(3). View this article in WRRO
Al-Tameemi HA, Long H & Dwyer-Joyce RS (2018) Initiation of sub-surface micro-cracks and white etching areas from debonding at non-metallic inclusions in wind turbine gearbox bearing. Wear, 406-407, 22-32. View this article in WRRO
Zhan M, Guo J, Fu MW, Gao PF, Long H & Ma F (2018) Formability limits and process window based on fracture analysis of 5A02-O aluminium alloy in splitting spinning. Journal of Materials Processing Technology, 257, 15-32. View this article in WRRO
Zhan M, Guo J, Fu MW, Li R, Gao PF, Long H & Ma F (2018) Formation mechanism and control of flaring in forward tube spinning. International Journal of Advanced Manufacturing Technology, 94(1-4), 59-72. View this article in WRRO
Feng W, Qin F & Long H (2018) Hot workability analysis and processing parameters optimisation for 20CrMnTiH steel by combining processing map with microstructure. Ironmaking and Steelmaking, 45(4), 317-324. View this article in WRRO
Gatea S, Chen F, Long H & Ou H (2017) Deformation and fracture of AMC under different heat treatment conditions and its suitability for incremental sheet forming. Procedia Engineering, 207, 848-853. View this article in WRRO
Feng W, Lv J, Hua L, Long H & Wang F (2017) Effect of Relief-hole Diameter on Die Elastic Deformation during Cold Precision Forging of Helical Gears. Procedia Engineering, 207, 627-632. View this article in WRRO
Lu B, Li Z, Long H, Chen F, Chen J & Ou H (2017) Microstructure refinement by tool rotation-induced vibration in incremental sheet forming. Procedia Engineering, 207, 795-800. View this article in WRRO
Ai S, Lu B & Long H (2017) An analytical study of new material test method for tension under bending and compression in double side incremental forming. Procedia Engineering, 207, 1982-1987. View this article in WRRO
Al-Hamadani H, An T, King M & Long H (2017) System dynamic modelling of three different wind turbine gearbox designs under transient loading conditions. International Journal of Precision Engineering and Manufacturing, 18(11), 1659-1668. View this article in WRRO
Chen F, Ou H, Gatea S & Long H (2017) Hot tensile fracture characteristics and constitutive modelling of polyether-ether-ketone (PEEK). Polymer Testing, 63, 168-179. View this article in WRRO
Lu B, Mohamed Bazeer MW, Cao JF, Ai S, Chen J, Ou H & Long H (2017) A study of incremental sheet forming by using water jet. International Journal of Advanced Manufacturing Technology, 91(5-8), 2291-2301. View this article in WRRO
Ai S, Lu B, Chen J, Long H & Ou H (2017) Evaluation of deformation stability and fracture mechanism in incremental sheet forming. International Journal of Mechanical Sciences, 124-125, 174-184. View this article in WRRO
Zhang H, Lu B, Chen J, Feng S, Li Z & Long H (2017) Thickness control in a new flexible hybrid incremental sheet forming process. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 231(5), 779-791. View this article in WRRO
Cao T, Lu B, Ou H, Long H & Chen J (2016) Investigation on a new hole-flanging approach by incremental sheet forming through a featured tool. International Journal of Machine Tools and Manufacture, 110, 1-17. View this article in WRRO
Zhan M, Wang X & Long H (2016) Mechanism of grain refinement of aluminium alloy in shear spinning under different deviation ratios. Materials and Design, 108, 207-216. View this article in WRRO
Xiao GF, Xia QX, Cheng XQ & Long H (2016) New forming method of manufacturing cylindrical parts with nano/ultrafine grained structures by power spinning based on small plastic strains. Science China Technological Sciences, 59(11), 1656-1665. View this article in WRRO
Bruce T, Long H, Slatter T & Dwyer-Joyce RS (2016) Formation of white etching cracks at manganese sulfide (MnS) inclusions in bearing steel due to hammering impact loading. Wind Energy, 19(10), 1903-1915. View this article in WRRO
Chen F, Cui Z, Ou H & Long H (2016) Mesoscale modeling and simulation of microstructure evolution during dynamic recrystallization of a Ni-based superalloy. Applied Physics A: Materials Science and Processing, 122(10). View this article in WRRO
Hua L, Deng J, Qian D, Lan J & Long H (2016) Modeling and application of ring stiffness condition for radial-axial ring rolling. International Journal of Machine Tools and Manufacture, 110, 66-79. View this article in WRRO
Shao Y, Lu B, Xu DK, Chen J, Ou H, Long H & Guo PY (2016) Topology-based preform design optimization for blade forging. International Journal of Advanced Manufacturing Technology, 86(5-8), 1593-1605.
Chen F, Gatea S, Ou H, Lu B & Long H (2016) Fracture characteristics of PEEK at various stress triaxialities.. J Mech Behav Biomed Mater, 64, 173-186. View this article in WRRO
Zhan M, Wang Y, Yang H & Long H (2016) An analytic model for tube bending springback considering different parameter variations of Ti-alloy tubes. Journal of Materials Processing Technology, 236, 123-137. View this article in WRRO
Xu DK, Lu B, Cao TT, Zhang H, Chen J, Long H & Cao J (2016) Enhancement of process capabilities in electrically-assisted double sided incremental forming. Materials & Design, 92, 268-280. View this article in WRRO
Chen F, Ou H, Lu B & Long H (2016) A constitutive model of polyether-ether-ketone (PEEK). Journal of the Mechanical Behavior of Biomedical Materials, 53, 427-433. View this article in WRRO
Liu R, Lu B, Xu D, Chen J, Chen F, Ou H & Long H (2016) Development of novel tools for electricity-assisted incremental sheet forming of titanium alloy. The International Journal of Advanced Manufacturing Technology, 85(5-8), 1137-1144. View this article in WRRO
Lu B, Ou H, Shi SQ, Long H & Chen J (2016) Titanium based cranial reconstruction using incremental sheet forming. International Journal of Material Forming, 9(3), 361-370. View this article in WRRO
Chen F, Liu J, Ou H, Lu B, Cui Z & Long H (2015) Flow characteristics and intrinsic workability of IN718 superalloy. Materials Science and Engineering: A, 642, 279-287. View this article in WRRO
Bruce T, Rounding E, Long H & Dwyer-Joyce RS (2015) Characterisation of white etching crack damage in wind turbine gearbox bearings. Wear, 338-339, 164-177. View this article in WRRO
Lu B, Fang Y, Xu DK, Chen J, Ai S, Long H, Ou H & Cao J (2015) Investigation of material deformation mechanism in double side incremental sheet forming. International Journal of Machine Tools and Manufacture, 93, 37-48. View this article in WRRO
Bruce T, Long H & Dwyer-Joyce RS (2015) Dynamic modelling of wind turbine gearbox bearing loading during transient events. IET Renewable Power Generation, 9(7), 821-830. View this article in WRRO
Al-Tubi IS, Long H, Zhang J & Shaw B (2015) Experimental and analytical study of gear micropitting initiation and propagation under varying loading conditions. Wear, 328-329, 8-16. View this article in WRRO
Al-Tubi I, Long H, Tavner P, Shaw B & Zhang J (2015) Probabilistic analysis of gear flank micropitting risk in wind turbine gearbox using supervisory control and data acquisition data. IET Renewable Power Generation, 9(6), 610-617. View this article in WRRO
Long H, Al-Tubi IS & Martinza MTM (2015) Analytical and Experimental Study of Gear Surface Micropitting due to Variable Loading. Applied Mechanics and Materials, 750 (2015), 96-103. View this article in WRRO
Lu B, Xu DK, Liu RZ, Ou H, Long H & Chen J (2015) Cranial reconstruction using double side incremental forming. Key Engineering Materials, 639, 535-542. View this article in WRRO
Cao J, Wang T, Long H, Ke S & Xu B (2015) Dynamic loads and wake prediction for large wind turbines based on free wake method. Transactions of Nanjing University of Aeronautics and Astronautics, 32(2), 240-249. View this article in WRRO
Zhang MH, Lu B, Chen J, Long H & Ou H (2015) Selective element fission approach for fast FEM simulation of incremental sheet forming based on dual-mesh system. International Journal of Advanced Manufacturing Technology, 78(5-8), 1147-1160. View this article in WRRO
Cao T, Lu B, Xu D, Zhang H, Chen J, Long H & Cao J (2015) An efficient method for thickness prediction in multi-pass incremental sheet forming. The International Journal of Advanced Manufacturing Technology, 77(1-4), 469-483. View this article in WRRO
Watson M, Long H & Lu B (2014) Investigation of wrinkling failure mechanics in metal spinning by Box-Behnken design of experiments using finite element method. International Journal of Advanced Manufacturing Technology, 78(5 (2015)), 981-995. View this article in WRRO
Watson M & Long H (2014) Wrinkling failure mechanics in metal spinning. Procedia Engineering, 81(C), 2391-2396.
Xu D, Lu B, Cao T, Chen J, Long H & Cao J (2014) A Comparative Study on Process Potentials for Frictional Stir- and Electric Hot-assisted Incremental Sheet Forming. Procedia Engineering, 81, 2324-2329. View this article in WRRO
Xia Q, Xiao G, Long H, Cheng X & Sheng X (2014) A review of process advancement of novel metal spinning. International Journal of Machine Tools and Manufacture, 85, 100-121. View this article in WRRO
Xia Q, Xiao G, Long H, Cheng X & Yang B (2014) A study of manufacturing tubes with nano/ultrafine grain structure by stagger spinning. Materials and Design, 59, 516-523. View this article in WRRO
Shi F, Long H, Zhan M & Ou H (2014) Uncertainty analysis on process responses of conventional spinning using finite element method. Structural and Multidisciplinary Optimization, 49(5), 839-850. View this article in WRRO
Wang L & Long H (2013) Roller path design by tool compensation in multi-pass conventional spinning. Materials and Design, 46, 645-653.
Xia QX, Lai ZY, Long H & Cheng XQ (2013) A study of the spinning force of hollow parts with triangular cross sections. International Journal of Advanced Manufacturing Technology, 1-10.
Al-Tubi IS & Long H (2013) Prediction of wind turbine gear micropitting under variable load and speed conditions using ISO/TR 15144-1: 2010. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE, 227(9), 1898-1914. View this article in WRRO
Pell S & Long H (2012) A Study on Mechanics of Conventional Spinning using a Truncated Hemispherical Dome. Steel Research International, 1359-1362. View this article in WRRO
Feng Y, Qiu Y, Crabtree CJ, Tavner PJ & Long H (2012) Monitoring wind turbine gearboxes. Wind Energy.
Xia Q, Cheng X, Long H & Ruan F (2012) Finite element analysis and experimental investigation on deformation mechanism of non-axisymmetric tube spinning. INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 59(1-4), 263-272.
Ou H, Wang P, Lu B & Long H (2012) Finite element modelling and optimisation of net-shape metal forming processes with uncertainties. Computers and Structures, 90-91(1), 13-27.
Wang L, Long H, Ashley D, Roberts M & White P (2011) Effects of the roller feed ratio on wrinkling failure in conventional spinning of a cylindrical cup. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 225(11), 1991-2006.
Greaves PG, Dominy RG, Ingram GL, Long H & Court R (2011) Evaluation of dual axis fatigue testing of large wind turbine blades. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 226(7), 1693-1704.
Lu B, Ou H & Long H (2011) Die shape optimisation for net-shape accuracy in metal forming using direct search and localised response surface methods. Structural and Multidisciplinary Optimization, 1-17. View this article in WRRO
Long H, Wu J & Firth A (2011) Improving gearbox design and analysis for offshore wind turbines. Applied Mechanics and Materials, 86, 309-312.
Wang L & Long H (2011) Investigation of material deformation in multi-pass conventional metal spinning. Materials and Design, 32(5), 2891-2899.
Wang L & Long H (2011) A study of effects of roller path profiles on tool forces and part wall thickness variation in conventional metal spinning. Journal of Materials Processing Technology, 211(12), 2140-2151.
Wang L, Long H, Ashley D, Roberts M & White P (2010) Analysis of Single-Pass Conventional Spinning by Taguchi and Finite Element Methods. STEEL RESEARCH INTERNATIONAL, 81(9), 974-977. View this article in WRRO
Feng Y, Tavner PJ & Long H (2010) Early experiences with UK round 1 offshore wind farms. Proceedings of Institution of Civil Engineers: Energy, 163(4), 167-181.
Long H, Gery D, Carlier A & Maropoulos PG (2009) Prediction of welding distortion in butt joint of thin plates. Materials and Design, 30(10), 4126-4135.
Hamilton S & Long H (2008) ANALYSIS OF CONVENTIONAL SPINNING PROCESS OF A CYLINDRICAL PART USING FINITE ELEMENT METHODS. STEEL RESEARCH INTERNATIONAL, 632-639. View this article in WRRO
Long H (2006) Quantitative evaluation of dimensional errors of formed components in cold backward cup extrusion. Journal of Materials Processing Technology, 177(1-3), 591-595.
Lin T, Li R, Long H & Ou H (2006) Three-dimensional transient sealing analysis of the bolted flange connections of reactor pressure vessel. Nuclear Engineering and Design, 236(24), 2599-2607.
Gery D, Long H & Maropoulos P (2005) Effects of welding speed, energy input and heat source distribution on temperature variations in butt joint welding. Journal of Materials Processing Technology, 167(2-3), 393-401.
Long H, Mynors DJ, Holland P & Standring P (2004) Knowledge-based process selection for rotationally symmetric and rotationally non-symmetric components in cold forming. Journal of Materials Processing Technology, 153-154(1-3), 338-345.
Long H, Zhang G & Luo W (2004) Modeling and analysis of transient contact stress and temperature of involute gears. Jixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering, 40(8), 24-29.
Long H (2004) Dimensional errors of cold formed components using FE simulation. Journal of Materials Processing Technology, 151(1-3 SPEC. ISS.), 355-366.
Long H, Lord AA, Gethin DT & Roylance BJ (2003) Operating temperatures of oil-lubricated medium-speed gears: Numerical models and experimental results. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 217(2), 87-106.
Holland P, Standring PM, Long H & Mynors DJ (2002) Feature extraction from STEP (ISO 10303) CAD drawing files for metalforming process selection in an integrated design system. Journal of Materials Processing Technology, 125-126, 446-455.
Long H, Mynors DJ, Holland P & Standring PM (2002) Forming feature representation and process selection in cold extrusion. Journal of Materials Processing Technology, 125-126, 456-463.
Long H & Balendra R (1998) Evaluation of elasticity and temperature effects on the dimensional accuracy of back-extruded components using finite element simulation. Journal of Materials Processing Technology, 80-81, 665-670. View this article in WRRO
Long H & Balendra R (1998) FE simulation of the influence of thermal and elastic effects on the accuracy of cold-extruded components. Journal of Materials Processing Technology, 84(1-3), 247-260. View this article in WRRO
Zhang G, Wang J, Long H & Yang N (1993) Study on the rolling cone enveloping hourglass worm gearing. Chinese Journal of Mechanical Engineering (English Edition), 1993, Vol. 6(4), 293-298.
Hart E, Clarke B, Nicholas G, Kazemi Amiri A, Stirling J, Carroll J, Dwyer-Joyce R, McDonald A & Long H () A review of wind turbine main-bearings: design, operation, modelling, damage mechanisms and fault detection. View this article in WRRO

Conference proceedings papers

Dai R & Long H (2024) Investigating Bearing Subsurface Microstructural Damage of White Etching Areas and Butterfly Wing Cracks. The 18th International Conference on Advances in Experimental Mechanics
Wu ZZ, Perez Cervantes V, Hurtado E, Song WY, Lee HJ, Ng C & Long H (2024) Small-scale test of ball-on-curved surface contact to study fretting wear of wind turbine blade pitch bearings. The 18th International Conference on Advances in Experimental Mechanics. https://www.bssm.org/events/conference/18th-conference-liverpool/programme-and-abstracts/, 3 September 2024 - 3 September 2024.
Peng W, Ouyang X, Booth J & Long H (2024) Vibration characterisation in new rotational vibration-assisted incremental sheet forming. MATEC Web of Conferences, Vol. 401 (pp 01009-01009)
Zhu H, Peng W & Long H (2024) Effect of vibration frequency and amplitude on formability in rotational vibration-assisted incremental sheet forming (RV-ISF). Materials Research Proceedings, Vol. 41 (pp 1559-1568)
Peng WX, Hurtado Molina E, Solum FA, Booth J & Long H (2024) Surface and Friction Characterisation of Rotational Vibration-Assisted Incremental Sheet Forming. Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity (pp 756-765)
Chang Z, Booth J & Long H (2024) Vibrating Tool Path Design for New Multi-axial Vibration Assisted Incremental Sheet Forming. Proceedings of the 14th International Conference on the Technology of Plasticity - Current Trends in the Technology of Plasticity (pp 603-612)
Hart E, Raby K, Keller J, Sheng S, Long H, Carroll J, Brasseur J & Tough F (2023) Main Bearing Replacement and Damage - A Field Data Study on 15 Gigawatts of Wind Energy Capacity
Ai S & Long H (2022) Biaxial tension under bending and compression - development of a new formability test for incremental sheet forming. IOP Conference Series: Materials Science and Engineering, Vol. 1270(1). Online, 11 September 2022 - 14 September 2022.
Wiessler O & Long H (2022) Design of single point incremental forming for a motorcycle headlight fairing manufacture. Key Engineering Materials, Vol. 926 (pp 822-833)
Long H, Ai S, Tian F, Lu B, Chen J & Ou H (2021) A new test method for sheet metal deformation subject to tension under cyclic bending and compression (TCBC). Forming the Future : Proceedings of the 13th International Conference on the Technology of Plasticity (pp 441-455). Virtual conference, 25 July 2021 - 30 July 2021.
Ai S & Long H (2019) Finite element modelling of material deformation and damage by tension under cyclic bending and compression test. Proceedings of the 22nd International Esaform Conference on Material Forming: Esaform 2019, Vol. 22. Vitoria-Gasteiz, Spain, 8 May 2019 - 10 May 2019. View this article in WRRO
Al-Bedhany JH & Long H (2018) Microscopic investigation of subsurface initiated damage of wind turbine gearbox bearings. Journal of Physics: Conference Series, Vol. 1106(1), 2 July 2018 - 4 July 2018. View this article in WRRO
Al-Tameemi HA, Long H & Dwyer-Joyce R (2018) The effects of tribological factors and load sequence on surface pitting and cracks in bearing steel. Journal of Physics: Conference Series, Vol. 1106(1) View this article in WRRO
Al-Hamadani H, Long H & Cartmell M (2016) Effects of model complexity on torsional dynamic responses of NREL 750 kw wind turbine drivetrain (pp 203-212)
Al-Tameemi H, Long H & Dwyer-Joyce RS (2016) Investigation of wind turbine gearbox bearing subsurface damage considering transient loading. WindEurope Summit 2016, 27 September 2016 - 29 September 2016. View this article in WRRO
Xiao G, Xia Q, Cheng X & Long H (2015) Investigation on dimensional accuracy and mechanical properties of cylindrical parts by flow forming. MATEC Web of Conferences, Vol. 21 (pp 03007-03007)
Ai S, Lu B, Long H, Chen J & Ou H (2015) Investigation of the deformation stability in the incremental sheet forming process. MATEC Web of Conferences, Vol. 21 (pp 04012-04012)
Cao T, Lu B, Chen J & Long H (2015) Comparative Study of Efficient Thickness Prediction Approaches for Multi-pass Incremental Forming Process. The International Deep Drawing Group Conference ((IDDRG 2015) (pp 767-779), 31 May 2015 - 3 June 2015.
Xia Q, Huang X, Cheng X & Long H (2015) Development of constitutive model of Haynes230 at high temperature based on Johnson-Cook model. The International Deep Drawing Group 2015 (IDDRG2015) (pp 794-802), 31 May 2015 - 3 June 2015.
Chen F, Lu B, Liu R, Ou H, Long H & Xu D (2015) Correlation between formability and initial grain size in incremental sheet metal forming of pure titanium parts. International Deep Drawing Group Conference (IDDRG 2015) (pp 376-381), 31 May 2015 - 3 June 2015.
Bruce T, Long H & Dwyer-Joyce R (2015) White etching crack initiation at manganese sulphide (MnS) inclusions in a wind turbine gearbox bearing. ESIA13: Engineering Structural Integrity Assessment (pp 219-228), 19 May 2015 - 20 May 2015.
Long H & Al-Tubi I (2013) Effects of Operational Conditions on Wind Turbine Gear Micropitting. The European Wind Energy Conference (EWEC), Vol. 3 (pp 1923-1929). Vienna, Austria, 4 February 2013 - 7 February 2013.
Long H, Wu J & Tavner PJ (2012) Analysis of Statistical Loading Conditions of Wind Turbine Gearbox based on SCADA Data. The European Wind Energy Association Conference 2012, Vol. 2 (pp 868-874). Copenhagen, Denmark, 16 April 2012 - 19 April 2012.
Long H, Wang L & Jagger P (2011) Tool Force Analysis in Multi-pass Conventional Spinning by Finite Element Simulation and Experimental Measurement. Proceedings of the 10th International Conference on Technology of Plasticity, Vol. 2011 (pp 547-553). Aachen Germany, 25 September 2011 - 30 September 2011.
Wang L & Long H (2011) Investigation of Effects of Roller Path Profiles on Wrinkling in Conventional Spinning. Proceedings of the 10th International Conference on Technology of Plasticity, Vol. 2011 (pp 554-559). Aachen Germany, 25 September 2011 - 30 September 2011.
Feng Y, Qiu Y, Crabtree CJ, Long H & Tavner PJ (2011) Use of SCADA and CMS signals for failure detection and diagnosis of a wind turbine gearbox. European Wind Energy Conference and Exhibition 2011, EWEC 2011 (pp 17-19) View this article in WRRO
Long H, Wu J, Matthew F & Tavner P (2011) Fatigue analysis of wind turbine gearbox bearings using SCADA data and miner's rule. European Wind Energy Conference and Exhibition 2011, EWEC 2011 (pp 334-337) View this article in WRRO
Wang L & Long H (2010) Stress analysis of multi-pass conventional spinning. Proceedings of the 8th International Conference on Manufacturing Research, Vol. 2010 (pp 186-191). Durham United Kingdom, 12 September 2010 - 15 September 2010.
Tavner PJ, Higgins A, Arabian H, Long H & Feng Y (2010) Using an FMEA method to compare prospective wind turbine design reliabilities. European Wind Energy Conference and Exhibition 2010, EWEC 2010, Vol. 4 (pp 2501-2537) View this article in WRRO
Wilkinson M, Hendriks B, Spinato F, Harman K, Gomez E, Bulacio H, Roca J, Tavner P, Feng Y & Long H (2010) Methodology and results of the reliawind reliability field study. European Wind Energy Conference and Exhibition 2010, EWEC 2010, Vol. 3 (pp 1984-2004) View this article in WRRO
Smolders K, Long H, Feng Y & Tavner P (2010) Reliability analysis and prediction of wind turbine gearboxes. European Wind Energy Conference and Exhibition 2010, EWEC 2010, Vol. 4 (pp 2660-2682) View this article in WRRO
Firth A & Long H (2010) A design software tool for conceptual design of wind turbine gearboxes. European Wind Energy Conference and Exhibition 2010, EWEC 2010, Vol. 5 (pp 3568-3578) View this article in WRRO
Feng Y, Tavner PJ, Long H & Bialek JW (2010) Review of early operation of UK round 1 offshore wind farms. IEEE PES General Meeting, PES 2010
Long H, Fanourakis A & Oliver P (2008) Case study in design: Generation of design knowledge for vehicle sub-frames based on finite element simulation (pp 447-462)
Long H & Hamilton S (2008) Simulation of effects of material deformation on thickness variation in conventional spinning. 9th International Conference on Technology of Plasticity, ICTP 2008 (pp 735-740) View this article in WRRO
Dai Y, Long H & Vogt O (2007) A cost model for early design of supply chain information systems. Proceedings of the 11th International Conference on Human Aspects of Advanced Manufacturing Agility and Hybrid Automation, Vol. 2007 (pp 194-208). Poland, 9 July 2007 - 12 September 2007.
Long H, Gery D & Maropoulos PG (2007) Welding temperature simulation using a moving distributed heat source model. Proceedings of the 4th Inter. Conf. on Digital Enterprise Technology, Vol. 2007 (pp 287-296). Bath, United Kingdom, 19 September 2007 - 21 September 2007.
Long H & Maropoulos PG (2004) Dimensional error prediction of cold formed components in backward extrusion using finite element analysis. Proceedings of the IASTED International Conference on Applied Simulation and Modelling (pp 259-264) View this article in WRRO
Long H, Mynors DJ, Holland & Standring P (2003) Knowledge based process selection for cold forming components. Proceedings of the International Conference on Advances in Materials and Processing Technologies, Vol. 2003 (pp 511-514). Dublin, Ireland
Holland P, Standring P, Long H & Mynors DJ (2002) The development of shape simulation software (SSS) for metal forming process optimization. Proceedings of the 7th International Conference for Technology of Plasticity, Vol. 2002, Vol. 1 (pp 151-156). Yokohama, Japan, 27 October 2002 - 1 November 2002.
Long H, Mynors DJ, Holland P & Standring P (2002) The route to automatic metal forming process selection. Proceedings of the 7th International Conference for Technology of Plasticity, Vol. 2002, Vol. 2 (pp 1357-1362). Japan, 27 October 2002 - 1 November 2002.
Mynors DJ, Long H, Standring P & Holland P (2001) Linking process selection and component design via CAD. The 2nd International Conference and Exhibition on Design and Production of Dies and Moulds, Turkey, Vol. 2001. Kusadasi, Turkey, 21 June 2001 - 23 June 2001.
Balendra R, Long H, ENGINEERS IM & ENGINEERS IM (1998) Prediction of geometrical accuracy of back-extruded components using FE simulation. INTERNATIONAL CONFERENCE ON FORGING AND RELATED TECHNOLOGY (ICFT '98), Vol. 1998(3) (pp 183-190)
Long H & Balendra R (1997) Finite Element simulation of temperature distribution in component and die during cold metal forming. Proceedings of 13th National Conference on Manufacturing Research, United Kingdom, Vol. 1997 (pp 295-299)
Long H, Qin D & Zhang G (1997) Error effects on load and stress of meshing gears with Finite Element method. Proceedings of International Conference on Mechanical Transmission, China Machine Press, China, Vol. 1997 (pp 523-527)
Long H & Balendra R (1997) The influence of thermal and elastic effects of the accuracy of cold-formed components. Proceedings of 32nd International MATADOR Conference, Manchester, United Kingdom, Vol. 1997 (pp 361-366)
Ou H & Long H (1995) Computation simulation of static and dynamic contact stresses of meshing gear teeth with Finite Element method. Proceedings of The 9th World Congress on the Theory of Machines and Mechanisms, Italy, Vol. 1995, Vol. 4 (pp 2597-2601)
Zhang G, Xue H, Long H, Kato M & Deng G (1994) The double involute gear with ladder shape of tooth. Proceedings of 1994 International Gearing Conference, United Kingdom, Vol. 1994 (pp 507-512)
Long H & Zhang G (1994) Load and stress simulation of an involute spur gear in meshing process. Proceedings of MPT'94 Symposium on Motion and Power Transmission, Japan, Vol. 1994 (pp 189-193)
Hui L & Guanghui Z (1992) Finite Element Contact Analysis of the Cone Roller Enveloping Worm Gearing and Stress Computation (pp 225-231)
Long H & Zhang G (1992) Finite Element contact analysis of the rolling cone enveloping hourglass worm gearing. Proceedings of International Conference on Rotating Machine Dynamics, Italy, Vol. 1992
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Grants

New Tooling for Incremental Sheet Forming, EPSRC, 2019-2021, Principal Investigator.
Offshore Wind Powertrain Research Hub, UK Offshore Renewable Energy Catapult, 2019-2024, Co-I, with PI Professor D Stone and Co-Is Professor ZQ Zhu and Professor RS Dwyer-Joyce.
Novel Flexible Sheet Forming for High Value Manufacturing (FLEXFORM). EU FP7 Marie Curie, 2014-2016, Principal Investigator, with Marie Curie Research Fellow Dr B Lu.
New Material Processing Technologies for Sustainable Future (MatProFuture). EU Marie Curies IRSES, 2013-2017, Principal Investigator, with Co-Is Professor R Dwyer-Joyce and Dr C Pinna.
Wind Turbine Gearbox Bearing Failure Analysis. Industrial Funded, 2012-2015, Principal Investigator.
Sensing Oil Film, Load and Damage in Wind Turbine Bearings. DECC & TSB, 2013-2015, Co-I, with PI Professor R Dwyer-Joyce and Co-I Dr M Marshall.
Advanced Design Methodologies for Wind Turbine Gearboxes - Visiting Fellowship of Chongqing University. Ministry of Education, China, 2010-2013, Principal Investigator.
Implementation and Demonstration of SCADA-based Wind Turbine Monitoring to Improve Reliability. EPSRC Impact, 2011-2012, Principal Investigator.
Future Reliable Renewable Energy Conversion Systems and Networks. EPSRC, 2009-2012, Co-I.
Lightweight Offshore Wind Turbine Gearbox Feasibility Study. Northern Wind Innovation Project, 2010-2011, Principal Investigator.
Wind Turbine Gearbox Stochastic Loading Prediction for Failure Detection and Prevention. One NorthEast, 2011, Principal Investigator.
Design Innovation for Multidisciplinary Engineering Applications. The Royal Academy of Engineering, 2010-2012, Principal Investigator.
Reliability Focused Research on Optimising Wind Energy Systems Design, Operation and Maintenance. EU FP7 Collaborative, 2008-2011, Co-I.
Effective Experimentation and Simulation Techniques for Metal Spinning. TSB KTP, 2008-2010, Principal Investigator.

Teaching activities

MEC316: Renewable Energy (Module Leader)
MEC312: Advanced Mechanics of Solids (Module Leader)
MEC455 & 6455: Mechanics and Applications of Advanced Manufacturing Technologies