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
ORCID0000-0003-2368-3126
Positionresearcher - High Cycle Fatigue Group

Scientific interest
  • Fatigue strength and durability of structures, theoretical as well as experimental study of fatigue crack propagation mechanisms
  • Micromechanisms of damage, especially in metallic materials
  • Crack growth threshold in modes I, II and III, implementation of relevant parameters for crack driving force evaluation, consideration of influencing factors of testing as well as operation of engineering components
  • Development of strategies for accurate estimation of residual fatigue life of structures under long-term loading, such as railway vehicles

Education
  • 2010-2014: Doctoral degree - Brno University of Technology, Faculty of Mechanical Engineering, Physical and Materials Engineering
  • 2008-2010: Master’s degree - University of Pardubice, Faculty of Transportation, Vehicle design
  • 2005-2008: Bachelor’s degree - University of Pardubice, Faculty of Transportation, Vehicle design
Work experiences
  • From 07/2016: Researcher - High Cycle Fatigue Group, Institute of Physics of Materials, CAS
  • 09/2014-06/2016: Researcher - Deformation, Fatigue and Fracture, Erich Schmid Institute of Materials Science, Austrian Academy of Sciences (ESI ÖAW), Leoben, Austria
  • 09/2012-06/2022: Researcher - Advanced Materials, CEITEC, Brno University of Technology

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

Arbeiter F., Gosch A., Vojtek T., Pinter G., Hutař P., Berer M.: Mixed mode I/III fatigue behaviour of polyetheretherketone. Eng. Fract. Mech. 320 (2025) 111057


2024

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

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


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

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

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


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