Institute of Physics of Materials AS CR, v. v. i. > People > Pokorný Pavel

Ing. Pavel Pokorný, Ph.D.

Room108
Phone number+420 532 290 362
E-mail[javascript protected email address]
Researcher IDK-4764-2012
Positionresearcher - High Cycle Fatigue Group

Scientific interest
Fatigue of materials and lifetime estimation of railway axles.

  • 2003-2007 Secondary education
    Technical School of Mechanical Engineering in Olomouc
  • 2007-2010 Bachelor Studies
    Brno University of Technology, Faculty of Mechanical Engineering, Mechanical engineering
  • 2010-2012 Master Studies
    Brno University of Technology, Faculty of Mechanical Engineering, Institute of Solid Mechanics, Mechatronics and Biomechanics
  • 2012-2016 Postgraduate Studies
    Brno University of Technology, Faculty of Mechanical Engineering, Institute of Solid Mechanics, Mechatronics and Biomechanics
  • 02/2014-03/2014 1 month internship
    Politecnico di Milano – Italy, fatigue experiments of railway axles, evaluation of mechanical properties after shot-peening procedure
  • 08/2017-08/2017 1 month internship
    University of Hertfordshire – Great Britain, creation of empirical model for evaluation of threshold values from middle crack growth rates data of fatigue cracks

    • 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

    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

    Dlhý P., Peter O., Fajkoš R., Pokorný P., Hutař P., Jambor M.: Numerical investigation of the critical areas of the freight train wheel web. Strojnicky casopis - Journal of Mechanical Engineering 74 (2024) 15-26

    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

    Dlhý P., Poduška J., Pokorný P., Jambor M., Náhlík L., Kajánek D., Fajkoš R., Hutař P.: Estimation of residual stress distribution in railway axles. Eng. Fail. Anal. 135 (2022) 106142

    Dlhý P., Poduška J., Pokorný P., Jambor M., Náhlík L., Hutař P.: Residual stress determination by the layer removal and X-ray diffraction measurement correction method. MethodsX 9 (2022) 101768

    Seitl S., Pokorný P., Klusák J., Duda S., Lesiuk G.: Effect of specimen thickness on fatigue crack growth resistance in Paris region in AISI 304 steel. Structural. Integr. 24 (2022) 291-297

    Jambor M., Pokorný P., Trško L., Oplt T., Jacková M., Hutař P.: Microstructure and the fatigue crack propagation in the dissimilar low alloy/stainless steel GMAW welded joints. Mater. Character. 191 (2022) 112119

    Seitl S., Pokorný P., Benešová A., Juhászová T., Kala Z.: Variance of selected properties from various structural elements made from AISI 304. Trans. VSB TU Ostrava Ser. 22 (2022) 39-44

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


    2021

    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

    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

    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


    2020

    Šebestová H., Horník P., Mrňa L., Jambor M., Horník V., Pokorný P., Hutař P., Ambrož O., Doležal P.: Fatigue properties of laser and hybrid laser-TIG welds of thermo-mechanically rolled steels. Mater. Sci. Eng. A 772 (2020) 138780

    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

    Fintová S., Pokorný P., Fajkoš R., Hutař P.: EA4T railway axle steel fatigue behavior under very high-frequency fatigue loading. Eng. Fail. Anal. 115 (2020) 104668

    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

    Seitl S., Pokorný P., Miarka P., Klusák J., Kala Z., Kunz L.: Comparison of fatigue crack propagation behaviour in two steel grades S235, S355 and a steel from old crane way. MATEC Web Conf. 310 (2020) 34


    2019

    Oplt T., Hutař P., Pokorný P., Náhlík L., Berto F.: Numerical evaluation of plasticity induced crack closure in 3D structures. Procedia Struct. Integr. 23 (2019) 101-106

    Seitl S., Miarka P., Pokorný P., Klusák J.: Influence of corrosion on fatigue behaviour of old crane runway steel. J. Strain Anal. for Engin. Design 54 (2019) 416-423

    Oplt T., Šebík M., Berto F., Náhlík L., Pokorný P., Hutař P.: Strategy of plasticity induced crack closure numerical evaluation. Theor. Appl. Fract. Mech. 102 (2019) 59-69

    Oplt T., Hutař P., Pokorný P., Náhlík L., Chlup Z., Berto F.: Effect of the free surface on the fatigue crack front curvature at high stress asymmetry. Int. J. Fatigue 118 (2019) 249-261

    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

    Seitl S., Miarka P., Pokorný P., Fintová S., Kunz L.: COMPARISON OF MECHANICAL PROPERTIES OF OLD STEEL FROM TRUSS CRANE RUNWAY WITH S235 AND S355 GRADES. Trans. VSB TU Ostrava Ser. 19 (2019) 56-60

    Dlhý P., Poduška J., Pokorný P., Náhlík L., Fajkoš R., Hutař P.: Methodology for estimation of residual stresses in hardened railway axle. Procedia Struct. Integr. 23 (2019) 185-190

    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

    Kunz L., Pokorný P., Konečná R., Nicoletto G.: Propagation of long fatigue cracks in Ti6Al4V alloy produced by direct metal laser sintering. Procedia Struct. Integr. 17 (2019) 222-229


    2018

    Seitl S., Miarka P., Pokorný P., Fintová S., Klusák J.: Influence of Micro-Structure on the Fatigue Crack Propagation in Bridge Steel. Proceedings 2 (2018) 1-6


    2017

    Náhlík L., Pokorný P., Ševčík M., Fajkoš R., Matušek P., Hutař P.: Fatigue lifetime estimation of railway axles. Eng. Fail. Anal. 73 (2017) 139-157

    Konečná R., Kunz L., Pokorný P., Nicoletto G.: Fatigue Crack Growth and Threshold Behavior of DMLS Ti6Al4V. Solid State Phenom. 267 (2017) 157-161

    Hutař P., Pokorný P., Poduška J., Fajkoš R., Náhlík L.: Effect of residual stresses on the fatigue lifetime of railway axle. Procedia Struct. Integr. 4 (2017) 42-47

    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

    Pokorný P., Hutař P., Náhlík L.: Influence of Extension of Load Spectrum on Estimation of Residual Fatigue Lifetime of Railway Axle. Solid State Phenom. 258 (2017) 607-610


    2016

    Pokorný P., Náhlík L., Hutař P.: Influence of variable stress ratio during train operation on residual fatigue lifetime of railway axles. Procedia Struct. Integr. 2 (2016) 3585-3592

    Náhlík L., Pokorný P., Ševčík M., Hutař P.: Influence of Initial Inclined Surface Crack on Estimated Residual Fatigue Lifetime of Railway Axle. J. Multiscale Model. 7 (2016) 1640007

    Štegnerová K., Náhlík L., Hutař P., Pokorný P., Majer Z.: Influence of Residual Stresses and Particle Properties on Mechanical Response of The Material in Particulate Ceramic Composites. Key Eng. Mater. 713 (2016) 212-215

    Pokorný P., Hutař P., Náhlík L.: Residual fatigue lifetime estimation of railway axles for various loading spectra. Theor. Appl. Fract. Mech. 82 (2016) 25-32


    2015

    Pokorný P., Náhlík L., Hutař P.: Influence of Threshold Values on Residual Fatigue Lifetime of Railway Axles under Variable Amplitude Loading. Procedia Eng. 101 (2015) 380-385


    2014

    Náhlík L., Pokorný P., Hutař P.: Influence of crack retardation on fatigue crack propagation in steels for railway axles. Adv. Mater. Res. 891-892 (2014) 351-356

    Náhlík L., Pokorný P., Hutař P., Matušek P.: Fatigue crack propagation in steels for railway axles. Key Eng. Mater. 592-593 (2014) 254-257

    Pokorný P., Náhlík L., Hutař P.: Comparison of different load spectra onresidual fatigue lifetime of railway axle. Procedia Eng. 74 (2014) 313-316

    Pokorný P., Náhlík L., Ševčík M., Hutař P.: Effects of variable loading on residual fatigue life of the railway wheelset. Key Eng. Mater. 577-578 (2014) 121-124

    Pokorný P., Náhlík L., Hutař P.: Influence of Different Crack Propagation Rate Descriptions on the Residual Fatigue Lifetime of Railway Axles. Key Eng. Mater. 627 (2014) 469-472