Institute of Physics of Materials AS CR, v. v. i. > People > Vojtek Tomáš

Ing. Tomáš Vojtek, Ph.D.

Room108
Phone number+420 532 290 362
E-mail[javascript protected email address]
Researcher IDE-6515-2012
Positionresearcher - High Cycle Fatigue Group

Scientific interest
Fatigue crack propagation in metallic materials, micromechanisms, crack closure, modes II and III.

Education:
  • 2005-2010 Master Studies
    University of Pardubice, Jan Perner Transport Faculty, branch Transport Means
  • 2010-2014 Postgraduate Studies
    Brno University of Technology, Faculty of Mechanical Engineering, branch Physical and Materials Engineering
    • Professional development:
  • 2011-2012 FME BUT
    Junior researcher – Ph.D. student, Faculty of Mechanical Engineering, Brno University of Technology.
  • 2014-2016 ESI ÖAW, Leoben
    Postdoctoral Position, Erich Schmid Institute of Materials Science, Austrian Academy of Sciences (ESI ÖAW), Leoben, Austria
  • Since 2011 CEITEC BUT
    Researcher, group of Advanced Metallic Materials and Metal Based Composites, Central European Institute of Technology (CEITEC)
  • Since 2016 IPM AS CR
    Researcher, High Cycle Fatigue Group, Institute of Physics of Materials, Academy of Sciences of the Czech Republic, v.v.i.

    • 2025

    Pokorný P., Vojtek T., Kubíček R., Jambor M., Náhlík L., Hutař P.: Paradox of shorter residual fatigue life due to omission of low-amplitude cycles and its significance for testing. Fatigue Fract. Eng. Mater. Struct. 48 (2025) 956-966


    2024

    Kubíček R., Vojtek T., Jambor M., Pokorný P., Náhlík L., Pokluda J., Hutař P.: Solution to the problem of low sensitivity of crack closure models to material properties. Theor. Appl. Fract. Mech. 130 (2024) 104243

    Kubíček R., Vojtek T., Pokorný P., Náhlík L., Hutař P.: Equations for efficient cycle-by-cycle computation of fatigue crack retardation and acceleration due to amplitude changes. Theor. Appl. Fract. Mech. 133 (2024) 104547

    Vojtek T., Kubíček R., Pokorný P., Hutař P.: Misconception of the use of 2D plane stress solutions for free surfaces of cracked bodies and its significance for full field measurement techniques. Adv. Eng. Mater. 26 (2024) 2400367


    2023

    Oplt T., Vojtek T., Kubíček R., Pokorný P., Hutař P.: Numerical modelling of fatigue crack closure and its implication on crack front curvature using deltaCTODp. Int. J. Fatigue 171 (2023) 107570

    Jambor M., Vojtek T., Pokorný P., Koutný D., Náhlík L., Hutař P., Šmíd M.: Anomalous fatigue crack propagation behavior in near-threshold region of L-PBF prepared austenitic stainless steel. Mater. Sci. Eng. A 872 (2023) 144982


    2022

    Slávik O., Vojtek T., Poczklán L., Tinoco Navarro H., Kruml T., Hutař P., Šmíd M.: Improved description of low-cycle fatigue behaviour of 316L steel under axial, torsional and combined loading using plastic J-integral. Theor. Appl. Fract. Mech. 118 (2022) 103212

    Kubíček R., Vojtek T., Pokorný P., Hutař P.: Sensitivity of numerically modelled crack closure to material. Procedia Struct. Integr. 42 (2022) 911-918


    2021

    Hu Y., Wu S., Withers P., Cao H., Chen P., Zhang Y., Shen Z., Vojtek T., Hutař P.: Corrosion fatigue lifetime assessment of high-speed railway axle EA4T steel with artificial scratch. Eng. Fract. Mech. 245 (2021) 107558

    Madia M., Vojtek T., Duarte L., Zerbst U., Pokorný P., Jambor M., Hutař P.: Determination of fatigue crack propagation thresholds for steel in presence of environmental effects. Int. J. Fatigue 153 (2021) 106449

    Pokorný P., Vojtek T., Jambor M., Náhlík L., Hutař P.: Effect of Underload Cycles on Oxide-Induced Crack Closure Development in Cr-Mo Low-Alloy Steel. Materials 14 (2021) 2530

    Poliserpi M., Barriobero-Vila P., Requena G., Garcia L., Tolley A., Poletti M., Vojtek T., Košelová Z., Schell N., Stark A., Boeri R., Sommadossi S.: TEM and Synchrotron X-ray Study of the Evolution of Phases Formed During Bonding of IN718/Al/IN718 Couples by TLPB. Metall. Mater. Trans. A 52 (2021) 1382-1394

    Trávníček L., Kuběna I., Mazánová V., Vojtek T., Polák J., Hutař P., Šmíd M.: Advantageous Description of Short Fatigue Crack Growth Rates in Austenitic Stainless Steels with Distinct Properties. Metals 11 (2021) 475

    Gosch A., Arbeiter F., Berer M., Vojtek T., Hutař P., Pinter G.: Fatigue characterization of polyethylene under mixed mode I/III conditions. Int. J. Fatigue 145 (2021) 106084

    Jambor M., Vojtek T., Pokorný P., Šmíd M.: Effect of Solution Annealing on Fatigue Crack Propagation in the AISI 304L TRIP Steel. Materials 14 (2021) 1331


    2020

    Vojtek T., Pokorný P., Oplt T., Jambor M., Náhlík L., Herrero D., Hutař P.: Classically determined effective deltaK fails to quantify crack growth rates. Theor. Appl. Fract. Mech. 108 (2020) 102608

    Pokorný P., Dlhý P., Poduška J., Fajkoš R., Vojtek T., Náhlík L., Grasso M., Hutař P.: Influence of heat treatment-induced residual stress on residual fatigue life of railway axles. Theor. Appl. Fract. Mech. 109 (2020) 102732

    Gosch A., Berer M., Hutař P., Slávik O., Vojtek T., Arbeiter F., Pinter G.: Mixed Mode I/III fatigue fracture characterization of Polyoxymethylene. Int. J. Fatigue 130 (2020) 105269

    Borges M., Antunes F., Prates P., Branco R., Vojtek T.: Effect of Young's modulus on Fatigue Crack Growth. Int. J. Fatigue 132 (2020) 105375


    2019

    Slávik O., Hutař P., Gosch A., Berer M., Vojtek T., Arbeiter F., Pinter G., Náhlík L.: Fatigue Crack Propagation under Mixed Mode I and III in Polyoxymethelene Homopolymer. Key Eng. Mater. 827 (2019) 404-409

    Žák S., Horníková J., Šandera P., Vojtek T., Kianicová M., Pokluda J.: Local and equivalent stress intensity factors for tortuous cracks under remote mode II loading. Theor. Appl. Fract. Mech. 101 (2019) 35-45

    Vojtek T., Pokorný P., Kuběna I., Náhlík L., Fajkoš R., Hutař P.: Quantitative dependence of oxide-induced crack closure on air humidity for railway axle steel. Int. J. Fatigue 123 (2019) 213-224

    Vojtek T., Pokorný P., Náhlík L., Herrero D., Hutař P.: Crack Closure in the Near-threshold Region in Metallic Materials. Procedia Struct. Integr. 23 (2019) 481-486

    Vojtek T., Hrstka M.: How to get a correct estimate of the plastic zone size for shear- mode fatigue cracks?. Theor. Appl. Fract. Mech. 104 (2019) 102322

    Tinoco Navarro H., Cardona C., Vojtek T., Hutař P.: Finite Element Analysis of Crack-tip Opening Displacement and Plastic Zones Considering the Cyclic Material Behavior. Procedia Struct. Integr. 23 (2019) 529-534


    2018

    Hrstka M., Žák S., Vojtek T.: Large plastic zones and extensive influence of notch under near-threshold mode II and mode III loading of fatigue cracks. Procedia Struct. Integr. 13 (2018) 1123-1128

    Vojtek T., Hohenwarter A., Pippan R., Pokluda J.: Influence of Secondary Phase on Intrinsic Threshold and Path of Shear-Mode Fatigue Cracks in Metals. Acta Phys. Pol. A 134 (2018) 699-702

    Vojtek T., Žák S., Pokluda J.: Quantitative analysis of intrinsic mode III fatigue thresholds in bcc metals. Int. J. Fatigue 115 (2018) 35-41


    2017

    Pokorný P., Vojtek T., Náhlík L., Hutař P.: Crack closure in near-threshold fatigue crack propagation in railway axle steel EA4T. Eng. Fract. Mech. 185 (2017) 2-19