Publications

Publications

Articles, peer reviewed

  • Ambühl, S., J.D. Sørensen: Different condition monitoring approaches for main shafts of offshore wind turbines, DCE Technical Report No. 212, Aalborg University, Denmark, 2016.

  • Ambühl, S., J.D. Sørensen: On Different Maintenance Strategies fort Casted Components of Offshore Wind Turbines, DCE Technical Report No. 222, Aalborg University, Denmark, 2016.

  • Andriollo, T., Hattel, J.:  On the isotropic elastic constants of graphite nodules in ductile cast iron: analytical and numerical micromechanical investigations,  Mechanics of Materials, vol. 96, pp. 138–150, 2016.

  • Andriollo, T., Thorborg, J., Hattel, J.: Analytical solution to the 1D Lemaitre’s isotropic damage model and plane stress projected implicit integration procedure, Applied Mathematical Modelling, vol. 40, no. 11–12, pp. 5759–5774, 2016.

  • Andrillo, T., Thorborg, J., Hattel, J.: Modeling the elastic behavior of ductile cast iron including anisotropy in the graphite nodules, International Journal of Solids and Structures, vol. 100-101, pp. 523–535, 2016.

  • Andrillo, T., Thorborg, J., Tiedje, N., Hattel, J.: A micro-mechanical analysis of thermo-elastic properties and local residual stresses in ductile iron based on a new anisotropic model for the graphite nodules, Modelling and Simulation in Materials Science and Engineering, vol. 24, no. 5, p. 055012(19pp), 2016.

  • Cerullo, M.: Application of Dang Van criterion to rolling contact fatigue in wind turbine roller bearings under elastohydrodynamic lubrication conditions, In: Institution of Mechanical Engineers. Proceedings. Part C: Journal of Mechanical Engineering Science, Vol. 228, No. 12, 2014, p. 2079-2089

  • Cerullo, M., Tvergaard, V.: Micromechanical study of the effect of inclusions on fatigue failure in a roller bearing, Accepted on September 2014 in International Journal of Structural Integrity.

  • Cerullo, M., Tvergaard, V.: Anyway, Application of Dang Van criterion at inclusions subject to a rolling contact stress history, 2013

  • Cerullo, M.:  Application of Dang Van criterion to rolling contact fatigue in wind turbine roller bearings under EHL conditions, Paper accepted to Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2013

  • Christiansen, P., Hattel, JH, Bay N. and Martins, PAF: Open die forging of large shafts with porosity defects – physical and numerical modelling, 2145-2155, Key Engineering Materials, 2013

  • Christiansen,P. ; Hattel, JH;  Bay, NO,  Martins, PAF: Physical modeling and numerical simulation of V-die forging ingot with central void, 2347-2356, Institution of Mechanical Engineers. Proceedings. Part C: Journal of Mechanical Engineering Science, 2014

  • Dabrowski D, Natarajan A.: Assessment of Gearbox Operational Loads and Reliability under High Mean Wind Speeds. Energy Procedia. 2015;80:38-46

  • Gallego Calderon J.F., Natarajan A, Dimitrov N.K.: Effects of bearing configuration in wind turbine gearbox reliability. Energy Procedia. 2015;80:392–400

  • Gallego Calderon, J. F., Natarajan, A., Cutululis, N. A.: Ultimate design load analysis of planetary gearbox bearings under extreme events. Wind Energy, 20(2), 325–343, 2017.

  • Gallego Calderon J.F., Natarajan A.: Assessment of wind turbine drive-train fatigue loads under torsional excitation. Engineering Structures. 2015;103:189–202

  • Janakiraman, S.,  Klit, P.: Comparison of Four Numerical Methods of EHL Modeling, Proceedings of 16th Nordic Symposium on Tribology - NORDTRIB 2014. Danish Technological Institute, 2014. p. 83

  • Janakiraman, S.; Klit, P.: Comparing the Gauss-Seidel and Jacobi Relaxation Schemes in the Solution of the EHL Line Contact Problem Using a Multigrid solver, 2014. Paper presented at 16th Nordic Symposium on Tribology, Aarhus, Denmark

  • Janakiraman, S.; West, O.; Klit, P.; Jensen, N. S.: Laboratory Simulation of Rolling Contact Fatigue Cracks in Wind Turbine Bearings Using Hydrogen Infused 100Cr6 Bearing Steel, 2014. Paper presented at 16th Nordic Symposium on Tribology, Aarhus, Denmark

  • Janakiraman, S., Klit P., Jensen, N. S., Grønbæk, J.: Observations on the effects of grooved surfaces on the interfacial torque in highly loaded rolling and sliding tests in: Tribology International, Vol. 81, 2014, p. 179–189

  • Janakiraman, S., West, O., Klit, P., Jensen, N. S.: Rolling Contact Fatigue Of Hydrogen Infused Bearing Surfaces Under An Applied Hoop Stress And EHL Conditions, Proceedings of 16th Nordic Symposium on Tribology - NORDTRIB 2014. Danish Technological Institute, 2014. p. 16

  • Jespersen, F.N., Hattel, J.H., Somers, M.A. J.: Modelling of composition and stress profiles in low temperature surface engineered stainless steel, Proc. Heat Treating 2015, Detroit, ASM International, pp. 606-611

  • Jespersen, F.N., Hattel, J.H., Somers, M.A.J.: Modelling the evolution of composition- and stress-depth profiles in austenitic stainless steels during  low-temperature nitriding, Mod. Sim. Mater. Sci. Eng., vol. 25, 2016, 025003 (31 pages).

  • Kotas, P., Tutum, CC,  Thorborg,  J. Hattel, JH: Elimination of Hot Tears in Steel Castings by Means of Solidification Pattern Optimization, Metallurgical and Materials Transactions B - Process Metallurgy and Materials Processing Science, 43 (3) 609-626 (2012)

  • Kotas, P. and Hattel, JH: Modelling and simulation of A-segregates in steel castings using a thermal criterion function: Part I – Background and validation, Materials Science and Technology 28 (7) 872-878 (2012)

  • Kotas, P. and Hattel, JH: Modelling and simulation of A-segregates in steel castings using a thermal criterion function: Part II – Optimisation of a real industrial cast part, Materials Science and Technology 28 (8) 911-917 (2012)

  • Liu, H., Zhang, X., Hansen, N., Gao, Y.: Numerical investigation of a shot peening process by a finite element approach in: Proceedings of the 35th Risø international symposium on materials science: New Frontiers of Nanometals. 2014 p.381-388 

  • Michele, M.: Sub-surface Fatigue Crack Growth at Alumina Inclusions in AISI 52100 Roller Bearings in: Procedia Engineering, Vol. 74, 2014, p. 333-338

  • Mukherjee, K., Fæster, S., Bjorholm Dahl, A., Sturlason, A.: Characterization of graphite nodules in thick-walled ductile cast iron in: Proceedings of the 35th Risø international symposium on materials science: New Frontiers of Nanometals. 2014 p.405-410

  • Rafsanjani, H.M.  and  Sørensen, J.D.: Reliability analysis of fatigue failure for wind turbine drivetrain components, submitted for Renewable energy Journal. Jan 2014  

  • Rafsanjani, H. M., Sørensen, J.D.: Reliability Analysis of Fatigue Failure of Cast Components for Wind Turbines, Energies 8 (2015) 2908-2923

  • Rafsanjani, H. M., Sørensen, J.D.: Effect of Defects Distribution on Fatigue Life of Wind Turbine Components, Procedia IUTAM 13 (2015) 144 – 150.

  • West, O.H.E., Dahl, K.V., Christiansen, T.L., Somers, M.A.J.: Failure analysis and thermochemical surface engineering of bearings for the wind turbine drivetrain, Proc. 2nd Int. Conf. Energy and the Future of Heat Treatment and Surface Engineering, IFHTSE, 2014, Beijing, pp. 361-365

  • West, O.H.E., Somers, M.A.J., Diederichs, A.M., Alimadadi, H. and Dahl, K.V.: Application of complementary techniques for advanced characterization of white etching cracks; pp. 410-431; PRAKTISCHE METALLOGRAPHIE/PRACTICAL METALLOGRAPHY Volume 50, Issue 6; 2013

  • Zhang, Y. B., Andriollo, T., Fæster, S., Liu, W., Hattel, J., Barabash, R.: Three-dimensional local residual stress and orientation gradients near graphite nodules in ductile cast iron, Acta Mater.121, 173-180, 2016


     

 PhD thesis

  • Andrillo, T., Hattel, J. (Main supervisor), Thorborg, J. (Supervisor), Tiedje, N. (supervisor): Graphite nodules and local residual stresses in ductile iron: Thermo-mechanical modeling and experimental validation, DTU Mechanical Engineering Ph.D. Thesis Report, 2016.

  • Bjerre, M., Hattel, J. H. (main supervisor), Tiedje, N.S. (supervisor), Thorborg, J. (supervisor): Graphite growth in cast irons during solidification. DTU Mechanical Engineering. To be submitted in 2017.

  • Christiansen, P.: Modelling of defects in ingot forging, 269, DTU, 2014

  • Cerullo, M.: Computational stress and damage modelling in rolling contact fatigue, 2014

  • Gallego Calderon, J. F., Natarajan, Anand (Main supervisor); Branner, Kim (Supervisor); Cutululis, Nicolaos Antonio (Supervisor); Hansen, John Michael (Supervisor), Electromechanical Drivetrain Simulation, DTU Wind Energy Ph.D. Thesis Report, 2015

  • Janakiraman, S.: Fatigue and wear in rolling and sliding contacts, 2014

  • Rafsanjani, H. M, Sørensen, J. D. (Main supervisor): Probabilistic Modeling of Wind Turbine Drivetrain Components. Department of Civil Engineering, Aalborg University, 2016. Submitted 2016, Public defense March 10, 2017.
     

Conference articles / peer reviewed

  • Andriollo, T., Thorborg, J., Hattel, J.:  Modeling of damage in ductile cast iron – The effect of including plasticity in the graphite nodules, MCWASP2015 conference

  • Andriollo, T., Thorborg, J., Hattel, J.: The influence of the graphite mechanical properties on the constitutive response of a ferritic ductile cast iron – A micromechanical FE analysis. In XIII International Conference on Computational Plasticity, Fundamentals and Applications, 2015

  • Beržonskis, A., Sørensen, J. D.: Reliability Analysis of Fatigue of Wind Turbine Drivetrain Components, Proceedings of the 13th Deep Sea Offshore Wind R&D Conference, EERA DeepWind'2016, 20-22 January 2016, Trondheim, Norway

  • Bjerre, M., Tiedje, N.S., Thorborg, J., Hattel,J.H.: Modelling solidification of ductile cast iron parts with varying wall thickness, paper 12038, MCWASP Conference, IOP Conf. Series: Material Science and Engineering, Vol 84, 2015

  • Cerullo, M.: Sub-surface Fatigue Crack Growth at Alumina Inclusions in AISI 52100 Roller Bearings, Vol 74 333-338, Procedia Engineering, 2014

  • Cerullo, M.:  Application of Dang Van criterion to rolling contact fatigue in wind turbine roller bearings, Proceeding of the 13th International Conference of Fracture - ICF13 16-21 June 2013, Beijing

  • Cerullo, M.: Application of Dang Van criterion to rolling contact fatigue in wind turbine roller bearings, Proceeding of the 13th International Conference of Fracture - ICF13 16-21 June 2013, Beijing  100% financed by the DSF-grant,  06/2013, Responsible partner: DTU MEK.

  • Christiansen, P; Martins, Paulo A.F. ; Bay, Niels Oluf ; Hattel, Jesper Henri: Multi-objective optimization of die geometry in ingot forging , 2457–2462, 11th International Conference on Technology of Plasticity, 2014

  • Christiansen, C.,  Hattel,  JH, Kotas, P  and Vladimis, L.: Modelling the void deformation and closure by hot forging of ingot castings, 1-9, 1st International Conference on Ingot Casting, Rolling and Forging, 2012.   100% financed by the DSF-grant, 06/2012, Responsible partner: DTU MEK.

  • Christiansen, P, Hattel, JH, Bay N  and Martins, PAF: Modelling of Damage During Hot Forging of Ingots, 1-12, International Conference on Modelling and Simulation of Metallurgical Processes in Steelmaking, 2013.   100% financed by the DSF-grant, 09/2013, Responsible partner: DTU MEK.

  • Christiansen, P, Hattel, JH, Bay N  and Martins, PA: Numerical optimization of die geometry in open die forging, 59-68, NEWTECH 2013 International Conference on Advanced Manufacturing Engineering and Technologies, 2013.  100% financed by the DSF-grant, 10/2013, Responsible partner: DTU MEK.

  • Gallego-Calderon, J ; Branner, K ; Natarajan, A ; Cutululis, NA: Electromechanical Drivetrain Simulation, Proceedings of 9th PhD Seminar on Wind Energy in Europe, 2013, Presented at: 9th PhD Seminar on Wind Energy in Europe, Gotland  100% financed by the DSF-grant, 2013, Responsible partner: DTU VIND.

  • Jegou, S., Barrallier, S., Kubler, L., Somers, M.A.J.: Evolution of residual stress in the diffusion zone of a model Fe-Cr-C alloy during nitriding, HTM J. Heat Treatm, Mat 66, 2011, 3  100% financed by the DSF-grant, 2011, Responsible partner: DTU MEK.

  • Jespersen, F.N., Hattel, J.H., Somers, M.A.J.: Modelling of compositon and stress profiles in low temperature surface engineered stainless steel. ASM International Heat Treating 2015, Detroit, USA, October 20-22, 2015.

  • Kotas, P., Tutum CC and Hattel, JH: Autonomous Optimization of a Solidification Pattern and Its Effect on Porosity and Segregation in Steel Castings, AFS Proceedings, 11-073, American Foundry Society (2011).  100% financed by the DSF-grant, 2011, Responsible partner: DTU MEK.

  • Rafsanjani, H.M.,  Sørensen, J.D.: The stochastic models of major defects in wind turbine drivetrain components, IUTAM 2013, 9 - 11 Sep, Santorini Island, Greece.  100% financed by the DSF-grant, 09/2013, Responsible partner: AAU.

  • Rafsanjani, H.M.  and Sørensen,  J.D.: Stochastic modeling of wid turbine drivetrain components, Safety, Reliability and Risk Anaysis: Beyond the Horizon: Proccedings of the European safety and reliability conference, Esrel 2013, Amsterdam, The Netherlands, 29 september - 2 October 2013. ed. / R.D.J.M. Steenbergen; P.H.A.J.M. van Gelder; S. Miraglia; A.C.W.M. Vrouwenvelder. London : C R C Press LLC, 2013. p. 1221-1228.   100% financed by the DSF-grant, 10/2013, Responsible partner: AAU

  • Rafsanjani, H. M., Sørensen, J.D., Mukherjee, K., Fæster, S., Sturlason, A.: Statistical Analysis of Manufacturing Defects on Fatigue Life of a Wind Turbine Casted Component, International Conference on Safety & Reliability of Ships, Offshore & Subsea Structures: 18th-20th August 2014

  • Rafsanjani, H. M., Sørensen, J.D.: Fatigue Reliability of Casted Wind Turbine Components Due to Defects, Proceedings of 12th International Conference on Applications of Statistics and Probability in Civil Engineering, 2015

  • West, O.H.E, Dahl, K.V., Christiansen, T.L., Somers, M.A.J.; Failure analysis and thermochemical surface engineering of bearings for wind turbine drivetrains. A3TS Congrès 42e edition Traitement des Materiaux; Performances Économiques & Techniques St. Etienne, France, 2-4 june 2015.

 

Working papers

  • Ambühl, S., Sørensen, J. D.: Different Transportation and Maintenance Strategies for Offshore Wind Farms, submitted to Journal of Energy.

  • Ambühl, S., Sørensen, J. D.: “Sensitivity of Risk-based Maintenance Planning of Offshore Wind Turbine Farms”, submitted to Energies (MDPI).

  • Andriollo, T., Thorborg, J., Hattel, J.: Analysis of the equivalent indenter concept used to extract Young’s modulus from a nano-indentation test: Some new insights into the Oliver-Pharr method, Modelling and Simulation in Materials Science and Engineering, under review.

  • Arvydas B., Sørensen, J.D.: Reliability Analysis of Fatigue of Wind Turbine Drivetrain Components - Energy Procedia (Elsevier), 2016

  • Beržonskis, A., Sørensen, J. D.: Different Fatigue Reliability Assessments of Wind Turbine Main shaft, to be submitted to Metal, 2017

  • Beržonskis, A., Sørensen, J. D.: Fatigue Reliability of Wind Turbine Drivetrain Components using a Fracture Mechanics Approach, to be submitted to IJOPE, 2017

  • Beržonskis, A., Sørensen, J. D.: Probabilistic design for wind turbine shafts, to be submitted to Energies, 2017.

  • Bjerre, M., Azeem, M. A., Atwood, A. C., Tiedje, N.S., Lee, P.: Graphite growth in cast iron studied in 4D by synchrotron X-ray tomography. To be submitted in 2017

  • Bjerre, M., Azeem, M. A., Hattel, J.H., Tiedje, N.S., Lee, P.: Correlative imaging of graphite using high temperature tomography and serial sectioning. To be submitted in 2017

  • Dabrowski, D., Natarajan, A.: Identification of loading conditions resulting in roller slippage in gearbox bearings of large wind turbines, Accepted for publication in wind energy journal.

  • Fæster, S., Zhang, Y., Haselbach, P. U., Andrillo, T., Hall, S.: Strain evolution in ductile cast iron during tension observed by DVC and modelled by FEM. Risø International Symposium 2017.

  • Kücükyildiz, Ö.C., Sonne, M.R, Thorborg, J., Hattel, J.H., Somers, M.A.J.: Integrated Computational Modelling of Thermochemical Surface Engineering of Stainless Steel, 24th IFHTSE Congress 2017. Submitted.

  • Mukherjee, K., Fæster, S. Hansen, N., Dahl, A. B.; Gundlach, C., Frandsen, J. O., Sturlarson, A.: . Graphite nodules in fatigue-tested cast iron characterized in 2D and 3D. Submitted to Materials Characterization.

  • Rafsanjani, H. M.: Probabilistic Modeling of wind turbine drivetrain components – draft – PhD thesis

  • Rafsanjani, H. M., Sørensen, J.D., Fæster, S., Sturlason, A.: Fatigue reliability analysis of wind turbine cast components - submitted to Energies, 2017.

  • Sørensen, J. D., Florian, M., Beržonskis, A.: Reliability and risk-based planning of operation and maintenance of offshore wind turbines. Proc. SAROSS conference, Glasgow, 2016.

  • Zhang, Y. B., Andrillo, T., Fæster, S., Liu, W., Xu, R., Barabash, R.: Effect of local residual stress gradients on the plastic deformation of ductile cast iron during in situ tensile deformation. To be submitted in 2017.

  • Zhang, Y. B., Andrillo, T., Fæster, S., Liu, W., Xu, R., Barabash, R., Tischler, J. Z.: Synchrotron measurement of local thermal residual strains/stresses in ductile cast iron. Risø International Symposium 2017.

 

Updated by Lena K. Carlberg Arvedsen on 27 April 2017
Responsible editor: Jesper Hattel
Updated by Lena K. Carlberg Arvedsen on 27 April 2017
Responsible editor: Jesper Hattel

Jesper Henri Hattel
DTU Mechanical Engineering
Department of Mechanical Engineering
Technical University of Denmark
Produktionstorvet
Building 425, room 128
2800 Kgs.Lyngby
Denmark

Phone   +45- 45254710
Fax       +45- 45934570
Email jhat@mek.dtu.dk


 

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24 APRIL 2024