Dr. Yasser Safa

Projects

• Novel approaches for investigating local corrosion and mechanical degradation of multiphasic alloys / Project leader / ongoing
• Designing smart wave guides and phononic cloaks using metamaterials / Project leader / completed
• Innovative rotor design of a new airborne wind power system / Project leader / completed
• Nonlinear Thermo-Mechanics of Surface Growth for Additive Manufacturing Applications / Project leader / completed
• Developing a Rotor Model of a Novel Lighter-Than-Air System of a Wind Power Turbine / Project leader / completed
• Testing a new method for characterization and optimization of the adhesion strength of ceramic and metallic coatings / Project leader / completed

Publications

Articles in scientific journal, peer-reviewed

• Marmet, P. et al. (2026) 'In situ quantification of β-phase dissolution in Ti-6Al-4V under harsh oxidative conditions', Corrosion Science, 263(113730). doi: 10.1016/j.corsci.2026.113730.
• Bereznykov, O. V. et al. (2025) 'Evanescent waves in multi-resonator metamaterials : mechanisms and characteristic parameters of wave attenuation', Low Temperature Physics, 51(10), pp. 1267–1282. doi: 10.1063/10.0039429.
• Mehreganian, N. et al. (2025) 'Dynamic response of armour steel hollow cylindrical shells to blast loading : a comparative study', Results in Engineering, 28(107258). doi: 10.1016/j.rineng.2025.107258.
• Yavari, A., Safa, Y. and Soleiman Fallah, A. (2023) 'Finite extension of accreting nonlinear elastic solid circular cylinders', Continuum Mechanics and Thermodynamics, 36(5), pp. 1053–1069. doi: 10.1007/s00161-023-01208-w.
• Soleiman Fallah, A. et al. (2020) 'On the computational derivation of bond-based peridynamic stress tensor', Journal of Peridynamics and Nonlocal Modeling. doi: 10.1007/s42102-020-00036-9.
• Fallah, A., Ghajari, M. and Safa, Y. (2019) 'Computational modelling of dynamic delamination in morphing composite blades and wings', The International Journal of Multiphysics, 13(4), pp. 393–430. doi: 10.21152/1750-9548.13.4.393.
• Safa, Y. and Hocker, T. (2015) 'A validated energy approach for the post-buckling design of micro-fabricated thin film devices', Applied Mathematical Modelling, 39(2), pp. 483–499. doi: 10.1016/j.apm.2014.05.038.
• Safa, Y. et al. (2014) 'Post-buckling design of thin-film electrolytes in micro-solid oxide fuel cells', Journal of Power Sources, 250, pp. 332–342. doi: 10.1016/j.jpowsour.2013.10.125.
• Evans, A. et al. (2012) 'Residual stress and buckling patterns of free-standing yttria-stabilized-zirconia membranes fabricated by pulsed laser deposition', Fuel Cells, 12(4), pp. 614–623. doi: 10.1002/fuce.201200028.
• Safa, Y., Flueck, M. and Rappaz, J. (2009) 'Numerical simulation of thermal problems coupled with magnetohydrodynamic effects in aluminium cell', Applied Mathematical Modelling, 33(3), pp. 1479–1492. doi: 10.1016/j.apm.2008.02.011.
• Safa, Y. and Pfenniger, D. (2008) 'Equation of state and stability of the helium-hydrogen mixture at cryogenic temperature', The European Physical Journal B, 66(3), pp. 337–352. doi: 10.1140/epjb/e2008-00438-8.

Books, peer-reviewed

Safa, Y. (2005) Simulation numérique des phénomènes thermiques et magnétohydrodynamiques dans une cellule de hall-héroult. Doctoral dissertation. École Polytechnique Fédérale de Lausanne. doi: 10.5075/epfl-thesis-3185.

Book chapters, peer-reviewed

• Mehreganian, N., Safa, Y. and Boiger, G. K. (2024) 'Impact analysis of wind turbines subjected to ship collision and blast loading', in Fallah, A. S., Khawaja, H. A., and Moatamedi, M. (eds) Multiphysics of Wind Turbines in Extreme Loading Conditions. Academic Press, pp. 101–138. doi: 10.1016/B978-0-323-91852-7.00008-8.
• Safa, Y. (2011) 'Helium thermodynamics, analytical model', in Helium : characteristics, compounds, and applications. New York: Nova Science Publishers, pp. 191–208.

Written conference contributions, peer-reviewed

• Alaboz, H. et al. (2022) 'Development of cost-effective automated test system for determining lifetime of gold contacts under mechanical load', in MikroSystemTechnik Kongress 2021 : Mikroelektronik / Mikrosystemtechnik und ihre Anwendungen Innovative Produkte für zukunftsfähige Märkte. Berlin: VDE, pp. 738–741. doi: 10.21256/zhaw-27639.
• Rappaz, J., Flueck, M. and Safa, Y. (2006) 'Influence of thermo-hydraulic fields on structural mechanics of aluminum reduction cells', in Light Metals 2006 : proceedings of the technical sessions presented by the TMS Aluminum Committee at the 135th TMS Annual Meeting, San Antonio, Texas, USA, March 12-16, 2006. TMS - The Minerals, Metals & Materials Society, pp. 433–438.
• Safa, Y. (2005) 'Determination and influence of the ledge shape on electrical potential and fluid motion in a smelter', in Light metals 2005 : proceedings of the technical sessions presend by the TMS Aluminum Committee at the 134th TMS Annual Meeting, San Francisco, California, February 13-17, 2005. TMS - The Minerals, Metals & Materials Society, pp. 461–468.

Other publications

• Evans, A. et al. (2012) 'Residual stress and buckling patterns of yttria-stabilised-zirconia thin films for micro-solid oxide fuel cell membranes', in Mogensen, M. B. et al. (eds) Ionic and mixed conducting ceramics. Pennington: The Electrochemical Society, pp. 475–479. doi: 10.1149/1.3701338.
• Safa, Y. and Hocker, T. (2009) 'Numerical simulation of reactive transport phenomena in the hexis SOFC-system', in Singhal, S. C. and Yokokawa, H. (eds) Solid Oxide Fuel Cells 11 (SOFC-XI). Pennington, pp. 1221–1230. doi: 10.1149/1.3205651.
• Safa, Y. (2005) 'Numerical simulations of thermo-magneto-hydrodynamic phenomena', in Numerical Swiss Colloquium, Zürich, 24 March 2005.

Oral conference contributions and abstracts

• Marmet, P. et al. (2026) 'In situ quantification of β-phase dissolution in Ti-6Al-4V implant material under harsh oxidative conditions', in 10th Swiss Corrosion Science Day, Villigen, Switzerland, 24 April 2026.
• Marmet, P. et al. (2025) 'H2O2-driven corrosion of Ti-6Al-4V implants : connection between electrochemical and microstructure characteristics', in EUROCORR Book of Abstracts.
• Prestat, M. et al. (2024) 'H2O2-driven corrosion of Ti6Al4V investigated by electrochemical impedance spectroscopy and quantitative microstructure analysis', in EUROCORR Book of Abstracts.
• Vucko, F. et al. (2024) 'Fatigue-corrosion behaviour of Ti6Al4V alloys in H2O2-containing physiological solution', in EUROCORR Book of Abstracts.
• Safa, Y. and Hocker, T. (2016) 'Developed numerical approach of the melt-crystals phase-changing kinetics in solidification process', in 11th International Conference of Multiphysics, Winterthur, 8-9 December 2016.
• Hocker, T., Safa, Y. and Meier, D. C. (2016) 'Kontrolliertes Kühlen von Kakaobutter und Modellierung der Kristallisation von Kakaobutter', in Choco Tec 2016 - der Schokoladenkongress des Jahres, Köln, Deutschland, 6-8 December 2016.
• Safa, Y. (2015) 'Developed model of the phase change kinetics in cocoa butter, simulation of cooling and solidification processe', in Meeting Day of Swiss Chocolate Industry 'AK-Schoko Treffen', Zurich, 2015.
• Safa, Y. (2014) 'A new phase mixture approach for the gas-liquid flow in shale reservoir', in 2nd International Symposium on Energy Challenges and Mechanics (ECM2) Aberdeen, UK, 19-21 August 2014.
• Prestat, M. R. et al. (2012) 'Miniaturized free-standing SOFC membranes on silicon chips (A0704)', in 10th European SOFC Forum 2012, Lucerne, Switzerland, 26–29 June 2012.
• Safa, Y. and Hocker, T. (2012) 'A validated model of membrane mechanics for micro SOFC', in 9th Symposium on Fuel Cell and Battery Modeling and Experimental Validation (ModVal 9), Sursee, 2.-4. April 2012.
• Hocker, T. et al. (2011) 'Buckling-driven crack growth in elastic plate devices', in 21. Symposium Simulationstechnik (ASIM 2011), Winterthur, Schweiz, 7.–9. September 2011.
• Safa, Y. (2011) 'Mathematica implementation of new simulation codes for challenging industrial applications', in XIII. Berliner Mathematica-Tag, Berlin, Deutschland, 2. Dezember 2011.
• Safa, Y. and Hocker, T. (2011) 'A new model for detailed simulation of multiple transport and conversion processes in SOFC stack repeat units', in 8th Symposium on Fuel Cell Modeling and Experimental Validation (ModVal8), Bonn, Germany, 8-9 March 2011.
• Schumacher, J. and Safa, Y. (2010) 'Modeling two-phase flow in the gas diffusion layer of a proton exchange membrane fuel cell', in 7th Symposium on Fuel Cell Modeling and Experimental Validation, Morges, 23-24 March 2010.
• Safa, Y. and Schumacher, J. O. (2009) 'Numerical modeling of the two-phase transport in a PEM fuel cell', in Proceedings of the Third European Fuel Cell Technology & Applications Conference : presented at 3rd European Fuel Cell Technology and Applications Conference, December 15 - 18, 2009, Rome, Italy.
• Schumacher, J. and Safa, Y. (2009) 'Numerical simulation of transport phenomena in PEM fuel cells', in Algoritmy 2009 - Conference on Scientific Computing, Podbanske, Slovakia, 15-20 March 2009. Slovak University of Technology, Bratislava.
• Safa, Y. (2005) 'Cuve de hall-héroult en thermomagnétohydrodynamique', in Le 2ème Congrès National de Mathématiques Appliquées et Industrielles, Evian, France, 23-27 May 2005.
• Safa, Y. (2004) 'Thermal calculations of reduction cells coupled with magnetohydrodynamic effect', in Workshop in Numerical Simulations for Aluminum Industry, Lausanne, 2004.

Patents and patent applications

• Safa, Yasser,

  2019.

  Appareil aéroporté pour la production d'énergie éolienne.

  Patent number CH715129 A2

  (2019-12-30)

  .

  Available from: https://worldwide.espacenet.com/patent/search?q=pn%3DCH715129A2

• Safa, Yasser,

  2018.

  Appareil aéroporté pour la production d’énergie éolienne à haute altitude.

  Patent number CH713455 A2

  (2018-08-15)

  .

  Available from: https://worldwide.espacenet.com/patent/search?q=pn%3DCH713455A2

• Safa, Yasser,

  2017.

  Appareil pour la production d’énergie éolienne grâce aux courants d’air en haute altitude.

  Patent number CH712386 A1

  (2017-10-31)

  .

  Available from: https://worldwide.espacenet.com/patent/search?q=pn%3DCH712386A1

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