Dr Christophe Pinna
School of Mechanical, Aerospace and Civil Engineering
School of Mechanical, Aerospace and Civil Engineering
Senior Lecturer in Mechanical Engineering
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+44 114 222 7831
Full contact details
School of Mechanical, Aerospace and Civil Engineering
Sir Frederick Mappin Building
Mappin Street
Sheffield
S1 3JD
- Profile
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Christophe Pinna graduated with a PhD from Ecole Polytechnique in France in 1997 and then joined the University of Sheffield in the UK where he is currently a Senior Lecturer. His research background is in the mechanics of materials, with applications to the fatigue and fracture of both metals and fibre composites, and to manufacturing (hot rolling, cold forming, additive manufacturing and automated fibre placement technologies).
His activities cover both experimental and computational mechanics. He is the co-Director of the Sheffield Tomography Centre at the University of Sheffield, a Full College Member of the Engineering and Physical Sciences Research Council (EPSRC) and a Member of the Aerospace Division Board of the Institution of Mechanical Engineers in the UK. He is also a Section Editor and an Editorial Board Member of the European Journal of Materials published on behalf of the Federation of European Materials Societies (FEMS) and an Editorial Board Member of the journal Materials. He is currently a member of the international scientific committees of EUROMAT2023 and FATIGUE2024.
- Research interests
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Dr Pinna’s research covers the areas of mechanics of materials, fatigue, fracture, manufacturing process modelling and includes both experimental and computational mechanics. Projects are funded through grants from EPSRC, the European Union and industry.
Applications include automotive advanced high strength steels, thermo-mechanical processing of metals (e.g. forging, rolling, friction stir welding), aerospace and automotive fibre composites and machining.
The work involves multi-scale experiments at both room and elevated temperatures using conventional as well as small-scale mechanical testing (e.g. tensile and bending inside a Scanning Electron Microscope, tensile and compression inside an X-ray micro-Computed Tomography microscope – Zeiss Xradia 620 Versa) and Full-field strain measurement techniques (e.g Digital Volume Correlation, optical 3D Digital Image Correlation, Scanning Electron Microscopy-based Digital Image Correlation and microgrids generated through Electron-Beam Lithography).
Modelling techniques include finite element models, micro-scale crystal plasticity models, cellular automata and phase-field models for simulations of microstructural deformation and evolution.
- Publications
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Books
Journal articles
- Impact damage characteristics of carbon fibre metal laminates : experiments and simulation. Applied Composite Materials. View this article in WRRO
- Non-intrusive measurement of strip thickness and roll-bite length in metal rolling. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. View this article in WRRO
- Analyzing the properties promoting shear bands and damage initiation in 3-point bending of ultra-high strength steel. Procedia Manufacturing, 50, 570-573.
- Do additive manufactured parts deserve better?. Fatigue & Fracture of Engineering Materials & Structures, 42(9), 2146-2154. View this article in WRRO
- Finite element modelling of surface defect evolution during hot rolling of Silicon steel. Journal of Materials Processing Technology, 268, 181-191. View this article in WRRO
- Machining distortion in asymmetrical residual stress profiles. Procedia CIRP, 82, 395-399. View this article in WRRO
- FE modelling of CFRP machining- prediction of the effects of cutting edge rounding. Procedia CIRP, 82, 59-64. View this article in WRRO
- Fatigue crack initiation in AA2024: A coupled micromechanical testing and crystal plasticity study. Fatigue and Fracture of Engineering Materials and Structures, 42(1), 321-338. View this article in WRRO
- Ageing of a polymeric engine mount investigated using digital image correlation. Polymer Testing, 71, 137-144. View this article in WRRO
- Materials characterisation and modelling on the small scale. Materials Science and Technology (United Kingdom), 34(13), 1529-1530. View this article in WRRO
- Ageing Simulation of a Hydraulic Engine Mount: a Data Informed Finite Element Approach. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering. View this article in WRRO
- Deformation-Induced Microstructural Banding in TRIP Steels. Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, 49(7), 2893-2906. View this article in WRRO
- Experimental and modelling study of fatigue crack initiation in an aluminium beam with a hole under 4-point bending. International Journal of Solids and Structures, 138, 87-96. View this article in WRRO
- Prediction of growth of jet fuel autoxidative deposits at inner surface of a replicated jet engine burner feed arm. Fuel, 214, 528-537. View this article in WRRO
- Surface defect evolution in hot rolling of high-Si electrical steels. Journal of Materials Processing Technology, 249, 302-312. View this article in WRRO
- 2D and 3D Finite Element Models for the Edge Trimming of CFRP. Procedia CIRP, 58, 233-238. View this article in WRRO
- An optical method for measuring surface roughness of machined carbon fibre-reinforced plastic composites. Journal of Composite Materials, 51(3), 289-302. View this article in WRRO
- Investigation of surface deposition in a simulated fuel injector feed arm with sudden expansion/contraction. Fuel, 186, 534-543. View this article in WRRO
- Hybrid-modelling of compact tension energy in high strength pipeline steel using a Gaussian Mixture Model based error compensation. Applied Soft Computing, 48, 1-12. View this article in WRRO
- Two-dimensional simulation of grain structure growth within selective laser melted AA-2024. Materials and Design. View this article in WRRO
- New Experimental Procedure for the Analysis of Micro-Scale Surface Damage at High Temperature. Experimental Mechanics, 56(6), 1063-1072. View this article in WRRO
- Machining of Carbon Fibre: Optical Surface Damage Characterisation and Tool Wear Study. Procedia CIRP, 45, 71-74. View this article in WRRO
- Damage in dual phase steel DP1000 investigated using digital image correlation and microstructure simulation. Modelling and Simulation in Materials Science and Engineering, 23(8). View this article in WRRO
- Assessment of crystal plasticity finite element simulations of the hot deformation of metals from local strain and orientation measurements. International Journal of Plasticity, 73, 24-38. View this article in WRRO
- Modelling impact damage in composite laminates: A simulation of intra- and inter-laminar cracking. Composite Structures, 114(1), 10-19.
- Interface cohesive elements to model matrix crack evolution in composite laminates. Applied Composite Materials, 21(1), 57-70.
- Failure mechanisms in DP600 steel: Initiation, evolution and fracture. Materials Science and Engineering A, 588, 420-431. View this article in WRRO
- Characterization of the High Temperature Strain Partitioning in Duplex Steels. EXPERIMENTAL MECHANICS, 53(2), 205-215.
- Damage Assessment of Composite Structures Using Digital Image Correlation. Applied Composite Materials, 1-16.
- Damage monitoring and analysis of composite laminates with an open hole and adhesively bonded repairs using digital image correlation. Composites Part B: Engineering, 53, 76-91.
- Void growth and coalescence modelling in AA2050 using the Rousselier model. International Journal of Damage Mechanics, 22(2), 219-237.
- Quantitative strain analysis of the large deformation at the scale of microstructure: comparison between Digital Image Correlation and Microgrid techniques. Experimental Mechanics. View this article in WRRO
- Using digital image correlation techniques for damage detection on adhesively bonded composite repairs. Advanced Composites Letters, 21(2), 51-57.
- Analysis of adhesively bonded repairs in composites: Damage detection and prognosis. Composite Structures.
- Modelling static recrystallisation textures using a coupled crystal plasticity-phase field technique. Materials Science Forum, 702-703, 663-666.
- Identification of modes of fracture in a 2618-T6 aluminum alloy using stereophotogrammetry. Materials Characterization, 62(12), 1141-1150.
- Modeling and Optimal Design of Machining-Induced Residual Stresses in Aluminium Alloys Using a Fast Hierarchical Multiobjective Optimization Algorithm. Materials and Manufacturing Processes, 26(3), 508-520.
- Local plastic strain evolution in a high strength dual-phase steel. MAT SCI ENG A-STRUCT, 527(18-19), 5026-5032. View this article in WRRO
- Strain evolution measurement at the microscale of a dual phase steel using Digital Image Correlation. Applied Mechanics and Materials, 24-25, 201-206. View this article in WRRO
- Determination of micro-scale plastic strain caused by orthogonal cutting. INT J MACH TOOL MANU, 48(2), 228-235. View this article in WRRO
- Measurement and prediction of deformation in plane strain compression tests of AA5182. MATER SCI TECH-LOND, 22(11), 1380-1386. View this article in WRRO
- Measurement of deformation gradients in hot rolling of AA3004. EXP MECH, 45(6), 517-525. View this article in WRRO
- View this article in WRRO
- Effect of roll pass schedule on through thickness texture development in Al-Mn alloy. MATER SCI TECH-LOND, 19(4), 477-482.
- Dynamic Modelling of a Hydraulic Engine Mount Including the Effects of Elastomer Ageing. SAE International Journal of Engines, 14(1), 99-114.
- View this article in WRRO
Chapters
- Low-velocity impact of composite laminates: Damage evolution, Dynamic Deformation, Damage and Fracture in Composite Materials and Structures (pp. 89-119). Elsevier
- Using a Correction Factor to Remove Machine Compliance in a Tensile Test on DP1000 Steel Validated with 2D Digital Image Correlation Technique, Progress in Engineering Technology III (pp. 113-123).
- Out-of-Plane Surface Deformation Measurement of Advanced High Strength Steel Using 3D DIC, Progress in Engineering Technology III (pp. 285-295).
- Low-velocity impact of composite laminates, Dynamic Deformation, Damage and Fracture in Composite Materials and Structures (pp. 117-146). Elsevier
- List of contributors, Dynamic Deformation, Damage and Fracture in Composite Materials and Structures (pp. xi-xii). Elsevier
- Fatigue Life Prediction in Aluminum Alloy 2618-T6 Using a Paris Law Modification, Fatigue of Materials III (pp. 239-250). Springer International Publishing
Conference proceedings papers
- Effect of the injection moulding fibre orientation distribution on the fatigue life of short glass fibre reinforced plastics for automotive applications. Procedia CIRP, Vol. 85 (pp 255-260). AMRC, Sheffield, UK, 10 October 2019 - 11 October 2019. View this article in WRRO
- Localized damage analysis for high strength S960 steel using micro-tensile testing and digital image correlation. Ubiquity Proceedings, Vol. 1(S1) (pp 16-16). Swansea, Wales, 10 July 2018 - 12 July 2018. View this article in WRRO
- Nonlinear Dynamics of Structures with Material Degradation. Journal of Physics: Conference Series, Vol. 744 (pp 012123-012123) View this article in WRRO
- View this article in WRRO
- View this article in WRRO
- 3D Digital Image Correlation (DIC) analysis in relation to damage development in third generation AA2050-T851 aluminium alloy. Journal of Physics: Conference Series, Vol. 382(012034). University of Glasgow, 29 August 2012 - 31 August 2012.
- Fatigue Life Prediction in Aluminum Alloy 2618-T6 Using a Paris Law Modification (pp 239-250)
- Impact damage characteristics of carbon fibre metal laminates : experiments and simulation. Applied Composite Materials. View this article in WRRO
- Research group
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Current PhD students
- Y.A. Lizama-Camara, Fatigue of short fibre composites
- A. Alsharif, Multi-scale modelling of Advanced High Strength Steels
- R. Dowding, Bendability of high strength hot rolled steels
- V.A. Perez Cervantes, Fatigue of short fibre composites
- A. Cooper, Machining-induced residual stress modelling
- S.M. Dabrowski, Cutting tools wear modelling
- G. Osborne, Manufacturing-induced residual stress modelling
- Z. Chen, Effect of manufacturing process on mechanical response of carbon-fibre composites
Graduated PhD students
- R. Bilkhu, Machining strategies for distortion control during high speed machining, 2020
- N.I. Rohaizat, Fracture of automotive high strength steels, 2019
- N. Duboust, Edge trimming of CFRP – surface roughness measurement and prediction, 2019
- G.J. Adeyemi, New kind of sensors for rolling applications, 2018
- A. Cartledge, Fatigue of self-healing composites, 2018
- K. Giasin, Drilling GLARE fibre metal laminates, 2017
- T. Mbwadzawo, Investigating and improving fracture resistance of elastomer o-rings and spring seals exposed to rapid gas decompression, 2016
- A. Ratner, Hybrid steel wire strands with carbon fibre reinforced plastics, 2016
- K. Alharbi, Damage Investigation in Dual-Phase 1000 Steel and behaviour prediction using microstructure based modelling, 2016
- M.F. Kiu, Hot deformation and damage of free cutting steel, 2015
- P. Efthymiadis, Multiscale experimentation and modelling of fatigue crack development in aluminium alloy 2024, 2015
- Y. Shi, Modelling low velocity impact behaviour of composite laminates used in aerospace, 2014
- H. Ghadbeigi, Metal cutting mechanics: investigation and simulation of deformation and damage mechanisms, 2010
- A. Salas-Zamarripa, Fatigue behaviour of an aluminium alloy used in Turbocharger compressor wheels, 2008
- C. Boldetti, High resolution strain measurements of Intra-granular deformation in structural materials at high temperature, 2006
- Grants
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- EPSRC – An X-ray Micro-Computed Tomography Facility with in-situ/in operando testing, 2019 – 2022, £ 1175k (CI)
- EU – H2020 – Fracture across Scales and Materials, Processes and Disciplines (FRAMED), 2017-2021, £142k (CI)
- EPSRC - Cradle to grave Life cycle prediction of automotive materials and systems in service: Impact of ageing on performance, 2014-2018, £ 1m (CI)
- KTP/TSB with Arnold Magnetic Technologies Ltd – 2012-2014, £135k (PI)
- M2i (Materials innovation institute – The Netherlands) / Tata Steel – Advanced High Strength Steels, 2010-2013, £377k (PI)
- EPSRC, A new framework for hybrid through-process modelling, process simulation and optimisation in the metals industry, 2008-2012, £4.6m (CI)
- EPSRC platform grant, Modern metals processing: transfer of knowledge and core skills to new and emerging technologies, 2007-2012, £880k (CI)
- EU RFCS grant, Roll-Gap Sensors, 2009-2012, £115k (CI)
- BAE Systems Marine, Plastic strain analysis, 2009-2011, £211k (CI)
- EU Framework 6, COMPACT - A concurrent approach to manufacturing induced part distortion in aerospace components, 2005-2009, £279k (CI)
- EPSRC, Thermomechanical processing: metallurgy, mechanics and modelling, 2002-2007, £3.9m (CI)
- EPSRC first grant, High resolution strain measurements of intra-granular deformation in structural materials at high temperatures, 2003-2006, £122k (PI)
- Teaching activities
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- MEC445 Industrial Applications of Finite Element Modelling
- MEC313 Finite Element Techniques