Institute of Physics of Materials AS CR, v. v. i. > Groups > High Cycle Fatigue Group

High Cycle Fatigue Group

Headdoc. Ing. Pavel Hutař, Ph.D.
E-mail [javascript protected email address]
Phone number+420 532 290 351
Room119

The research activities in the high cycle fatigue group are focused on the study of the nature and quantitative description of the fatigue processes in all fatigue stages. The main goal of the research is to contribute to better understanding of cyclic plasticity at low amplitudes, crack initiation and threshold values of fatigue crack propagation and to the fracture-mechanical description of the fatigue crack behaviour. Theoretical and experimental studies are focused on the relation between microstructure, microstructure evolution during damage progress, and macroscopic fatigue and fatigue/creep properties. The numerical estimation of the fracture parameters and simulations of the fracture behaviour are an important part of the research as well. The formulation of crack stability criteria for non-homogenous materials, notches and layered structures is a live issue studied in the group. Owing to this, the spectrum of studied materials is rapidly increasing. At present non-metallic materials such as polymers, polymer or ceramic based composites and advanced building materials are also dealt with.

In close cooperation with some industrial companies, the lifetime of advanced components is predicted based on numerical simulations and advanced fatigue tests.

The research of fatigue phenomena started at the IPM under the leadership of Prof. Mirko Klesnil in the 1960s. From the mid 1980s to 2010 the head of the high cycle fatigue group was assoc. Prof. Petr Lukáš, a well-known expert in the field of basic mechanisms of fatigue. The theoretically and computationally oriented part of the research group was established in the 1980s by Prof. Zdeněk Knésl, who was a natural and respected supervisor. The present staff of the group can be found here.

The main research projects currently running:

  • fatigue and fatigue/creep behaviour of single crystalline and polycrystalline superalloys,

  • fatigue properties of ultrafine-grained materials,

  • effect of mean stress on the cyclic stress-strain response and fatigue life,

  • effect of notches (including bi-material notches) and cracks on fatigue life and fatigue/creep life,

  • effect of a free surface on fatigue crack behaviour,

  • physical consequences of the constraint,

  • effect of the interface between two materials on a crack or notch behaviour,

  • basic fatigue and fracture characteristics of advanced building materials,

  • description of the crack behaviour in polymer materials,

  • description of the crack behaviour in advanced composite materials.

Researchers


NamePhone numbersRoomsE-mail
doc. Ing. Stanislava Fintová, Ph.D. +420 532 290 301 102b fintova@ipm.cz
Ing. Michal Jambor, Ph.D. +420 532 290 414 207 jambor@ipm.cz
doc. Ing. Jan Klusák, Ph.D. +420 532 290 348 118 klusak@ipm.cz
prof. RNDr. Ludvík Kunz, CSc., dr. h. c. +420 532 290 464 423 kunz@ipm.cz
Ing. Lucie Malíková, Ph.D. +420 532 290 338 108a malikova@ipm.cz
doc. Ing. Luboš Náhlík, Ph.D. +420 532 290 358 106 nahlik@ipm.cz
Ing. Jan Poduška, Ph.D. +420 532 290 347 114 poduska@ipm.cz
Ing. Pavel Pokorný, Ph.D. +420 532 290 362 108 pokorny@ipm.cz
doc. Ing. Stanislav Seitl, Ph.D. +420 532 290 361 107 seitl@ipm.cz
Ing. Miroslav Šmíd, Ph.D. +420 532 290 414 207 smid@ipm.cz
Ing. Tomáš Vojtek, Ph.D. +420 532 290 362 108 vojtek@ipm.cz

Technicians


NamePhone numbersRoomsE-mail
Ing. Vít Horník +420 532 290 357 102a hornik@ipm.cz
Michal Minařík +420 532 290 357 102a minarik@ipm.cz

Phd students


NamePhone numbersRoomsE-mail
Ing. Pavol Dlhý +420 532 290 347 114 dlhy@ipm.cz
Ing. Petr Miarka +420 532 290 361 107 miarka@ipm.cz
Ing. Tomáš Oplt +420 532 290 347 114 oplt@ipm.cz
Ing. Ondrej Slávik +420 532 290 347 114 slavik@ipm.cz
MSc. Hector Andres Tinoco Navarro +420 532 290 338 108a tinoco@ipm.cz
Ing. Lukáš Trávníček +420 532 290 347 114 travnicek@ipm.cz


Project numberNameInvestigator
CZ.01.1.02/0.0/0.0/19_262/0020138 Research and development of casting technology of thermally affected parts of aircraft engines and highly precise casts of new generation of turbochargers doc. Ing. Pavel Hutař, Ph.D.
FW01010183 Next Generation of Integrated Atomic Force and Scanning Electron Microscopy (GEFSEM) doc. Ing. Luboš Náhlík, Ph.D.
8J20AT013 Integrity and durability aspects of recycled aggregates composites (InDuRAC) doc. Ing. Jan Klusák, Ph.D.
20-00761S Influence of material properties of stainless steels on reliability of bridge structures doc. Ing. Stanislav Seitl, Ph.D.
H2020-WIDESPREAD-2018-03 ID: 857124 Structural Integrity and Reliability of Advanced Materials obtained through additive Manufacturing doc. Ing. Luboš Náhlík, Ph.D.
FV40327 Automatic optical system for fatigue crack propagation measurement doc. Ing. Pavel Hutař, Ph.D.
LTI19 The involvement of Czech research organizations in the Energy Research Alliance EERA doc. Ing. Luboš Náhlík, Ph.D.
TN01000071 National Competence Centre of Mechatronics and Smart Technologies for Mechanical Engineering doc. Ing. Pavel Hutař, Ph.D.
TN01000015 National Centre of Competence ENGINEERING doc. Ing. Luboš Náhlík, Ph.D.
19-25591Y Effect of the microstructure on the fatigue in highly anisotropic stainless steel fabricated by selective laser melting Ing. Miroslav Šmíd, Ph.D.
FV40034 Development of new design of railway axles with high operational reliability doc. Ing. Luboš Náhlík, Ph.D.
FV30219 3D print of implants for treating of a damaged skeleton, especially the human pelvis prof. RNDr. Ludvík Kunz, CSc., dr. h. c.
8J18AT009 Failure initiation and fracture of quasi-brittle building materials (FInFraM) Ing. Lucie Malíková, Ph.D.
RFCS-02-2016 ID:747266 Innovative approach to improve fatigue performance of automotive components aiming at CO2 emissions reduction (INNOFAT) doc. Ing. Pavel Hutař, Ph.D.
PCCL-K1 K1-Center in Polymer Engineering and Science doc. Ing. Pavel Hutař, Ph.D.

ALL PROJECTS


Project numberNameInvestigator
CZ.01.1.02/0.0/0.0/15_019/0004399 Research and development of precision casting technology for new type of aircraft engine castings and axial turbocharger wheels doc. Ing. Pavel Hutař, Ph.D.
RVO 68081723 Long-term conceptual development of research organizations prof. RNDr. Ludvík Kunz, CSc., dr. h. c.
CZ.01.1.02/0.0/0.0/15_019/0004505 Complex design of girders from advanced concretes doc. Ing. Stanislav Seitl, Ph.D.
17-01589S Advanced computational and probabilistic modelling of steel structures taking account fatigue damage doc. Ing. Stanislav Seitl, Ph.D.
CZ.01.1.02/0.0/0.0/15_019/0002421 Research and development of advanced precision casting technology of strongly thermally affected parts of new turbochargers from nickel based superalloys doc. Ing. Pavel Hutař, Ph.D.
16-18702S AMIRI − Aggregate-Matrix-Interface Related Issues in silicate-based composites doc. Ing. Jan Klusák, Ph.D.
GA15-09347S Role reziduálních napětí v životnosti keramických kompozitů doc. Ing. Luboš Náhlík, Ph.D.
TA04011525 Výzkum a vývoj technologií přesného lití radiálních kol turbodmychadel nové generace a nových typů lopatek plynových turbín. doc. Ing. Pavel Hutař, Ph.D.
CZ.1.07/2.3.00/45.0040 Science Academy - critical thinking and practical application of scientific and technical knowledge in real life doc. Ing. Jan Klusák, Ph.D.
7AMB1-4AT012 Development of new testing configurations for determination of relevant values of fracture characteristics of cementitious composites (DeTeCon) doc. Ing. Stanislav Seitl, Ph.D.
CZ.1.07/2.3.00/30.0063 Talented postdocs for scientific excellence in physics of materials doc. Ing. Luboš Náhlík, Ph.D.
CZ.1.07/2.3.00/20.0214 Human Resources Developments in the research of physical and material properties of emerging, newly developed and applied engineering materials doc. Ing. Luboš Náhlík, Ph.D.
CZ.1.07./2.3.00/20.0197 Multidisciplinary team in materials design and its involvement into international cooperation doc. Ing. Luboš Náhlík, Ph.D.
M100411204 Utilization of termographic techniques and advance probabilistic method for the efficient estimation of Wöhler curve parameters doc. Ing. Stanislav Seitl, Ph.D.
P108/12/1560 Description of the slow crack growth in polymer materials under complex loading conditions doc. Ing. Pavel Hutař, Ph.D.
CZ.1.07/2.4.00/17.0006 Building up Cooperation in R&D with the Research and Industrial Partners doc. Ing. Luboš Náhlík, Ph.D.
P105/11/0466 Energetic and stress state aspects of quasi-brittle fracture – consequences for determination of fracture-mechanical parameters of silicate composites doc. Ing. Stanislav Seitl, Ph.D.
P104/11/0833 Response of cement based composites to fatigue loading: advanced numerical modeling and testing doc. Ing. Stanislav Seitl, Ph.D.
GA ČR P108/10/2001 Cyclic plastic deformation and fatigue properties of ultrafine-grained materials prof. RNDr. Ludvík Kunz, CSc., dr. h. c.
P108/10/2049 Crack initiation and propagation from interface-related singular stress concentrators doc. Ing. Jan Klusák, Ph.D.
M100410901 Fracture mechanics description of three dimensional structures: numerical analysis and physical consequences of constraint doc. Ing. Stanislav Seitl, Ph.D.
KJB200410901 Fracture of silicate based composites studied on core drilled specimens – numerical-modeling background for advanced fracture parameters determination doc. Ing. Stanislav Seitl, Ph.D.
106/09/0279 Fracture damage mechanism of multilayer polymer body doc. Ing. Pavel Hutař, Ph.D.
101/09/0867 Assessment of fatigue damage of thin-walled structures doc. Ing. Pavel Hutař, Ph.D.
101/09/J027 Correlation between structural changes, damage evolution and crack propagation behaviour of welded thermoplastics components doc. Ing. Pavel Hutař, Ph.D.
101/08/1623 Innovative techniques for assessment of residual life of bodies with fatigue doc. Ing. Stanislav Seitl, Ph.D.
106/08/1409 Role of Structure of Crosslinked Polymer Matrix in Particulate Composities. Multiscale Modeling and Experimental Verification. doc. Ing. Luboš Náhlík, Ph.D.
101/08/0994 Determination of conditions of failure initiation in bi-material wedges composed of two orthotropic materials doc. Ing. Jan Klusák, Ph.D.
103/08/0963 Basic fatigue characteristic and fracture of advanced building materials doc. Ing. Stanislav Seitl, Ph.D.
KJB200410803 Generalization of linear elastic fracture mechanics to crack propagation problems in non-homogenous materials doc. Ing. Luboš Náhlík, Ph.D.
FT-TA4/023 Research and development of mechanical properties of the materials used for new types of turbochargers ... prof. RNDr. Ludvík Kunz, CSc., dr. h. c.
AST5-CT-2006-030889 Predictive Methods for Combined Cycle Fatigue in Gas Turbine Blades (PREMECCY) doc. RNDr. Petr Lukáš, CSc., dr. h. c.
106/06/P239 The effect of free surface on fatigue crack growth doc. Ing. Pavel Hutař, Ph.D.
AV0Z20410507 Physical properties of advanced materials in relation to their microstructure and processing doc. RNDr. Petr Lukáš, CSc., dr. h. c.
1QS200410502 Properties of engineering materials under development applicable in the near future in traffic, medicine and power generating industry prof. RNDr. Ludvík Kunz, CSc., dr. h. c.
106/05/2112 High-cycle fatigue of Ni-base superalloys at high mean stresses prof. RNDr. Ludvík Kunz, CSc., dr. h. c.
1P05ME804 Fatigue behaviour of ultra fine-grained Copper and Magnesium alloy materials prof. RNDr. Ludvík Kunz, CSc., dr. h. c.
101/04/P001 The influence of constraint on threshold values of the stress intensity factor doc. Ing. Stanislav Seitl, Ph.D.
106/04/P084 Influence of the interface between two materials on fatigue crack propagation doc. Ing. Luboš Náhlík, Ph.D.
106/03/P054 Linear Elastic Fracture Mechanics of Bi-material notches doc. Ing. Jan Klusák, Ph.D.

ALL PROJECTS

INSTRON E3000 with linear motor technology

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Electrodynamic testing instrument INSTRON with closed control loop for static or dynamic testing from very small to high frequencies (200 Hz and more). Maximal load is of ±3000 N for dynamic testing and ±2100 N for static testing. The system is equipped with temperature controlled chamber INSTRON 3119-605 with a temperature range from -100°C in LN2 atmosphere (-70 °C in CO2) to 350 °C and the internal dimensions of 485×240×230 mm.

Resonant system Amsler 10 HFP 1478, 100 kN, push-pull

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Resonant pulsator dedicated mainly for fatigue tests at high temperatures. The testing device is equipped by furnace with possible heating up to 1000 °C. Work resonant frequency is controlled by electromagnetic actuator. Test frequency is adjustable and is usually in range of 100 to 130 Hz. Movable crosshead of the pulsator enables application of mean force loads, i.e. asymmetrical fatigue tests.

Resonant system Amsler 2 HFP, 20 kN, push-pull, temperature up to 600 °C

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Resonant electromagnetic pulsator equipped by accessories for testing of compact tensile specimens and 3 point bending test dedicated mainly for fatigue crack propagation measurements. Therefore, the pulsator is upgraded by pair of camera system for fine measurement of actual crack length. Maximum dynamic force 25 kN predetermines this testing device for small specimen testing. Test frequency can be in range of 35 to 300 Hz.

Resonant system Schenck PVQ, 60 kN, push-pull

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Resonant pulsator with mechanical actuator. Possible test frequencies are from 12 to 83 Hz. Test machine is suitable for force controlled fatigue tests of larger samples thanks to the size and stiffness of frame. Dynamic load can be up to 30 kN and mean load up to 36 kN. The pulsator is dedicated for fatigue crack propagation tests of flat specimens (push/pull or push/push tests) or 3 point bending test specimens.

Servohydraulic system Zwick/Roell Amsler HC25, push-pull

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Compact table model of servo-hydraulic pulsator dedicated for static and dynamic material testing. Pulsator is capable to load the specimen by forces up to 25 kN. Maximum stroke of grips is 250 mm. Testing device is able to control mechanical tests in control regime of force or displacement. Electronic controlling system enables tailoring of a course of the mechanical test according to operator needs. Zwick/Roell Amsler HC25 is mainly determined for fatigue tests with low frequencies and with needs of fine level of control.

Schenck PVQ

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Resonant pulsator equipped with mechanical actuator. Possible test frequencies are from 12 to 83 Hz. Test machine is suitable for force controlled fatigue tests of larger samples thanks to the size and stiffness of frame. Dynamic load can be up to 30 kN and mean load up to 36 kN. The pulsator is dedicated for fatigue crack propagation tests of flat specimens (push/pull or push/push tests) or 3 point bending test specimens.

Ultrasonic system for very high cycle fatigue measurements

Contact person: doc. Ing. Jan Klusák, Ph.D.
Ultrasonic fatigue system pulsating at frequency of 20 kHz. This allows real-time measurement of very high cycle fatigue properties of materials at the number of cycles between 10 million to 10 billion. Measurement is possible under tension/compression and tension/tension conditions. It enables the measurement of SN (Wöhler) curves and fatigue crack propagation rates.

Resonant system Cracktronic 8024, 70N/m, bending

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Resonant table machine used for bending stress application and for precracking of impact test specimens. Maximum static bending moment reaches 70 Nm and dynamic 35 Nm. Test frequency can be up to 200 Hz according to the specimen shape.

Resonant system Fractronic 7801, 100 kN, push-pull, temperature up to 800°C

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Electromagnetic resonant pulsator mainly for fatigue tests at high temperatures. Movable crosshead with possible recording of its position enables to measure cyclic creep curves and also conducting tests with periodical changes of mean load (i.e. suitable for combined cyclic tests). Test frequency ranges from 100 to 130 Hz.

Servohydraulic system Shimadzu 10kN

Contact person: doc. Ing. Pavel Hutař, Ph.D.
Servo-hydraulic pulsator equiped with device for hysteresis loop recording. Testing device is suitable for fatigue tests in area of low cycle fatigue and shorter high cycle fatigue because of low test frequencies (0,1 – 10 Hz).


2020

Jambor M., Kajánek D., Fintová S., Bronček J., Hadzima B., Guagliano M., Bagherifard S.: Directing Surface Functions by Inducing Ordered and Irregular Morphologies at Single and Two?Tiered Length Scales. Adv. Eng. Mater. October (2020) 20200105

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

Miarka P., Pan L., Bílek V., Seitl S., Cifuentes Bulte H.: Influence of the chevron notch type on the values of fracture energy evaluated on alkali-activated concrete. Eng. Fract. Mech. 236 (2020) 107209

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

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

Jambor M., Trško L., Klusák J., Fintová S., Kajánek D., Nový F., Bokůvka O.: Effect of Severe Shot Peening on the Very-High Cycle Notch Fatigue of an AW 7075 Alloy. Metals 10 (2020) 1262

Seitl S., Miarka P., Rozsypalová I., Pokorná K., Keršner Z., Katzer J., Zarzycki P.: Mechanical fracture properties of concrete with lunar aggregate simulant. MATEC Web Conf. 323 (2020) 01014

Svoboda J., Horník V., Riedel H.: Modelling of Processing Steps of New Generation ODS Alloys. Metall. Mater. Trans. A 51 (2020) 5296-5305

Miarka P., Cruces A., Seitl S., Malíková (Šestáková) L., Lopez Crespo P.: Evaluation of the SIF and T-stress values of the Brazilian disc with a central notch by hybrid method . Int. J. Fatigue 135 (2020) 105562

Miarka P., Cruces A., Seitl S., Malíková (Šestáková) L., Lopez Crespo P.: Influence of the constraint effect on the fatigue crack growth rate in S355 J2 steel using digital image correlation. Fatigue Fract. Eng. Mater. Struct. 43 (2020) 1703-1718

Moravčík I., Horník V., Minárik P., Li L., Dlouhý I., Janovská M., Raabe D., Li Z.: Interstitial doping enhances the strength-ductility synergy in a CoCrNi medium entropy alloy. Mater. Sci. Eng. A 781 (2020) 139242

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

Lehner P., Pařenica P., Krejsa M., Křivý V., Brožovský J., Seitl S., Kala Z.: The general procedure of numerical analysis related to a fatigue damage on the cyclically loaded construction. MATEC Web Conf. 310 (2020) 16

Tinoco Navarro H., Hutař P., Merle B., Göken M., Kruml T.: Fracture Toughness Evaluation of a Cracked Au Thin Film by Applying a Finite Element Analysis and Bulge Test. Key Eng. Mater. 827 (2020) 196-202

Wasserbauer J., Buchtík M., Tkacz J., Fintová S., Minda J., Doskočil L.: Improvement of AZ91 Alloy Corrosion Properties by Duplex NI-P Coating Deposition. Materials 13 (2020) 1357

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

Miarka P., Seitl S., Horňáková M., Lehner P., Konečný P., Sucharda O., Bílek V.: Influence of chlorides on the fracture toughness and fracture resistance under the mixed mode I/II of high-performance concrete . Theor. Appl. Fract. Mech. 110 (2020) 102812

Mertová K., Palán J., Németh G., Fintová S., Duchek M., Studecký T., Veselý J., Máthis K., Džugan J., Trojanová Z.: Optimization of the Mechanical Performance of Titanium for Biomedical Applications by Advanced, High-Gain SPD Technology. Crystals 10 (2020) 10060422

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

Seitl S., Miarka P., Bílek V.: Fatigue and fracture mechanical properties of selected concrete for subtle precast structural elements. MATEC Web Conf. 310 (2020) 33

Fintová S., Kuběna I., Luptáková N., Jarý M., Šmíd M., Stratil L., Šiška F., Svoboda J.: Development of advanced Fe-Al-O ODS alloy microstructure and properties due to heat treatment. J. Mater. Res. 35 (2020) 2789-2797

Fintová S., Kuběna I., Palán J., Mertová K., Duchek M., Hutař P., Pastorek F., Kunz L.: Influence of sandblasting and acid etching on fatigue properties of ultra-fine grained Ti grade 4 for dental implants. J. Mech. Behav. Biomed. Mater. 111 (2020) 104016

Fintová S., Kuběna I., Trško L., Horník V., Kunz L.: Fatigue behavior of AW7075 aluminum alloy in ultra-high cycle fatigue region. Mater. Sci. Eng. A 774 (2020) 138922

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

Dymáček P., Svoboda J., Jirková H., Stratil L., Horník V.: Microstructure evolution and creep strength of new-generation oxide dispersion strengthened alloys with high volume fraction of nano-oxides. Procedia Struct. Integr. 17 (2019) 427-433

Kuběna M., Eliáš M., Zajíčková L., Poduška J., Kruml T.: On the Tensile Tests of Polyurethane and Its Composites with Carbon Nanotubes. Adv. Mater. Sci. Eng. 2019 (2019) 6598452

Tinoco Navarro H., Holzer J., Pikálek T., Buchta Z., Lazar J., Chlupová A., Kruml T., Hutař P.: Determination of elastic parameters of Si3N4 thin films by means of a numerical approach and bulge tests. Thin Solid Films 672 (2019) 66-74

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

Ríos J., Cifuentes Bulte H., Leiva C., Seitl S.: Analysis of the mechanical and fracture behavior of heated ultra-high-performance fiber-reinforced concrete by X-ray computed tomography. Cement and Concrete Research 119 (2019) 77-88

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

Profant T., Hrstka M., Klusák J.: An asymptotic analysis of crack initiation from an interfacial zone surrounding the circular inclusion. Composite Struct. 208 (2019) 479-497

Poduška J., Hutař P., Frank A., Kučera J., Sadílek J., Pinter G., Náhlík L.: Soil Load on Plastic Pipe and its Influence on Lifetime. Strojnicky casopis - Journal of Mechanical Engineering 69 (2019) 101-106

Horník V., Fintová S., Šmíd M., Hutař P., Hrbáček K., Kunz L.: Fatigue properties of B1914 superalloy at high temperatures. Procedia Struct. Integr. 23 (2019) 191-196

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

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

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

Ríos J., Leiva C., Ariza M., Seitl S., Cifuentes Bulte H.: Analysis of the tensile fracture properties of ultra-high-strength fiber-reinforced concrete with different types of steel fibers by X-ray tomography. Mater. & Design 165 (2019) 107582

Dymáček P., Bártková D., Horník V., Stratil L., Mašek B., Svoboda J.: New Generation of ODS Alloys. Key Eng. Mater. 810 (2019) 113-118

Profant T., Hrstka M., Klusák J.: Microcrack interaction with circular inclusion and interfacial zone. Frattura ed Integrita Strutturale 48 (2019) 503-512

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

Horník V., Fintová S., Šmíd M., Hutař P., Hrbáček K., Kunz L.: Interaction of fatigue and creep in MAR-M 247 superalloy. Procedia Struct. Integr. 23 (2019) 197-202

Fintová S., Drábiková J., Pastorek F., Tkacz J., Kuběna I., Trško L., Hadzima B., Minda J., Doležal P., Wasserbauer J., Ptáček P.: Improvement of electrochemical corrosion characteristics of AZ61 magnesium alloy with unconventional fluoride conversion coatings. Surf. Coat. Technol. 357 (2019) 638-650

Seitl S., Miarka P., Růžička V., Malíková (Šestáková) L., Cruces A., Lopez Crespo P.: Approximation of the crack-tip field in fatigue cracks in bridge steel specimens: DIC analysis of different constraint levels. Frattura ed Integrita Strutturale 49 (2019) 97-106

Vyhlídal M., Klusák J.: The influence of polygonal cavity on fracture behaviour of concrete. Procedia Struct. Integr. 17 (2019) 690-697

Poduška J., Hutař P., Frank A., Pinter G., Náhlík L.: Lifetime Calculation of Soil-Loaded Non-Pressure Polymer Pipes. Key Eng. Mater. 827 (2019) 141-146

Poduška J., Dlhý P., Hutař P., Frank A., Kučera J., Sadílek J., Náhlík L.: Design of plastic pipes considering content of recycled material. Procedia Struct. Integr. 23 (2019) 293-298

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

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

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

Klusák J., Seitl S.: Very high cycle fatigue tests of high strength steels S355 J0 and S355 J2. Procedia Struct. Integr. 17 (2019) 576-581

Sofinowski K., Šmíd M., Kuběna I., Vives S., Casati N., Godet S., Van Swygenhoven H.: In situ characterization of a high work hardening Ti-6Al-4V prepared by electron beam melting. Acta Mater. 179 (2019) 224-236

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

Chlup Z., Fintová S., Hadraba H., Kuběna I., Vilémová M., Matějíček J.: Fatigue Behaviour and Crack Initiation in CoCrFeNiMn High-Entropy Alloy Processed by Powder Metallurgy. Metals 9 (2019) 1-12

Seitl S., Růžička V., Miarka P., Sobek J.: ANALYSIS OF VARIOUS CHEVRON NOTCH TYPES AND ITS INFLUENCE ON THE LIGAMENT AREA. Trans. VSB TU Ostrava Ser. 19 (2019) 28-34

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

Klusák J., Krepl O., Profant T.: An easy and engineering stability criterion of general singular stress concentrators. Theor. Appl. Fract. Mech. 104 (2019) 102341

Fintová S., Drábiková J., Hadzima B., Trško L., Březina M., Doležal P., Wasserbauer J.: Degradation of unconventional fluoride conversion coating on AZ61 magnesium alloy in SBF solution. Surf. Coat. Technol. 380 (2019) 125012

Seitl S., Miarka P., Šimonová H., Frantík P., Keršner Z., Domski J., Katzer J.: Change of Fatigue and Mechanical Fracture Properties of a Cement Composite due to Partial Replacement of Aggregate by Red Ceramic Waste. PERIODICA POLYTECHNICA-CIVIL ENGINEERING 63 (2019) 152-159

Kala Z., Omishore A., Seitl S., Krejsa M., Kala J.: Identification of variation coefficient of equivalent stress range of steel girders with cracks. INTERNATIONAL JOURNAL OF MECHANICS 13 (2019) 69-78

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

Nový F., Jambor M., Petrů M., Trško L., Fintová S., Bokůvka O.: Investigation of the brittle fracture of the locomotive draw hook. Eng. Fail. Anal. 105 (2019) 305-312

Krepl O., Klusák J.: Multi-parameter failure assessment of a bi-material V-notch-Crack initiation from a free-edge singularity. Theor. Appl. Fract. Mech. 100 (2019) 233-241

Miarka P., Seitl S., Bílek V.: Mixed-mode fracture analysis in high-performance concrete using a Brazilian disc test. Mater. Technol. 53 (2019) 233-238

Krejsa M., Koktan J., Janas P., Brožovský J., Seitl S., Kala Z., Krejsa V.: Parallelization in DOProC method and its using in probabilistic modelling of fatigue problems. AIP Conference Proceedings 2116 (2019) 120007

Hadzima B., Pastorek F., Borko K., Fintová S., Kajánek D., Bagherifard S., Gholami-Kermanshahi M., Trško L., Pastorková J., Brezina J.: Effect of phosphating time on protection properties of hurealite coating: Differences between ground and shot peened HSLA steel surface. Surf. Coat. Technol. 375 (2019) 608-620

Frank A., Arbeiter F., Berger I., Hutař P., Náhlík L., Pinter G.: Fracture Mechanics Lifetime Prediction of Polyethylene Pipes. J. Pipeline Syst. Eng. Pract., 10 (2019) 04018030

Miarka P., Seitl S., De Corte W.: Notch tip displacements of the concrete Brazilian disc test with central notch analysed by the concrete damaged plasticity model. Theor. Appl. Fract. Mech. 102 (2019) 122-150



2018

Krejsa M., Brožovský J., Lehner P., Seitl S., Kala Z.: Stochastic analysis for short edge cracks under selected loads. AIP Conference Proceedings 1978 (2018) 150006-1-150006-4

Seitl S., Miarka P., Klusák J., Fintová S., Kunz L.: Comparison of the Fatigue Crack Propagation Rates in S355 J0 and S355 J2 Steel Grades. Key Eng. Mater. 784 (2018) 91-96

Seitl S., Miarka P., Kala Z.: Geometry functions for edge cracks in steel bridge under three- and four- point bending with various span. Trans. VSB TU Ostrava Ser. 18 (2018) 44-49

Seitl S., Miarka P., Merta I., Keršner Z.: Numerical Stress Analysis of the Biaxial Tension-Compression Wedge-Splitting Test in Vicinity of the Crack Tip. Key Eng. Mater. 784 (2018) 85-90

Malíková (Šestáková) L., Klusák J.: Multi-Parameter Fracture Mechanics: Crack Approaching a Bi-Material Interface. Key Eng. Mater. 784 (2018) 79-84

Moravčík I., Gouvea L., Horník V., Kováčová Z., Kitzmantel M., Neubauer E., Dlouhý I.: Synergic strengthening by oxide and coherent precipitate dispersions in high-entropy alloy prepared by powder metallurgy. Scr. Mater. 157 (2018) 24-29

Šiška F., Stratil L., Hadraba H., Fintová S., Kuběna I., Horník V., Husák R., Bártková D., Záležák T.: Strengthening mechanisms of different oxide particles in 9Cr ODS steel at high temperatures. Mater. Sci. Eng. A 732 (2018) 112-119

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

Seitl S., Miarka P., Klusák J., Kala Z., Krejsa M., Blasón Gonzáles S., Canteli A.: Evaluation of fatigue properties of S355 J0 steel using ProFatigue and ProPagation software. Procedia Struct. Integr. 13 (2018) 1494-1501

Slávik O., Hutař P., Berer M., Gosch A., Arbeiter F., Pinter G., Náhlík L.: Numerical Modelling of Cylindrical Specimen under Mixed-Mode Loading Conditions. Key Eng. Mater. 774 (2018) 325-330

Svoboda J., Horník V., Stratil L., Hadraba H., Mašek B., Khalaj O., Jirková H.: Microstructure Evolution in ODS Alloys with a High-Volume Fraction of Nano Oxides. Metals 8 (2018) 1079

Nicoletto G., Konečná R., Kunz L., Frkáň M.: Influence of as-built surface on fatigue strength and notch sensitivity of Ti6Al4V alloy produced by DMLS. MATEC Web Conf. 165 (2018) 02002

Krepl O., Klusák J.: Multi-parameter average strain energy density factor criterion applied on the sharp material inclusion problem. Procedia Struct. Integr. 13 (2018) 1279-1284

Man J., Järvenpää A., Jaskari M., Kuběna I., Fintová S., Chlupová A., Karjalainen L., Polák J.: Cyclic deformation behaviour and stability of grain-refined 301LN austenitic stainless structure. MATEC Web Conf. 165 (2018) 06005

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

Trško L., Fintová S., Nový F., Bokůvka O., Jambor M., Pastorek F., Florková Z., Oravcová M.: Study of Relation between Shot Peening Parameters and Fatigue Fracture Surface Character of an AW 7075 Aluminium Alloy. Metals 8 (2018) 111

Seitl S., Malíková (Šestáková) L., Růžička V., Moreno B., Lopez Crespo P.: Williams' expansion?based approximation of the displacement field in an Al 2024 compact tension specimen reconstructed from optical measurements. Fatigue Fract. Eng. Mater. Struct. 41 (2018) 2187-2196

Záležák T., Šiška F., Stratil L., Fintová S., Horník V., Bártková D., Husák R., Svoboda J., Dlouhý A.: An integration of 3D discrete dislocation dynamics with numerical tensile testing. Acta Phys. Pol. A 134 (2018) 777-780

Poduška J., Hutař P., Frank A., Kučera J., Sadílek J., Pinter G., Náhlík L.: Numerical simulations of cracked round bar test: Effect of residual stresses and crack asymmetry. Eng. Fract. Mech. 203 (2018) 18-31

Zapletal J., Trojanová Z., Doležal P., Fintová S., Knapek M.: Elastic and Plastic Behavior of the QE22 Magnesium Alloy Reinforced with Short Saffil Fibers and SiC Particles. Metals 8 (2018) 133

Bagherifard S., Hickey D., Fintová S., Pastorek F., Fernandez-Pariente I., Bandini M., Webster T., Guagliano M.: Effects of nanofeatures induced by severe shot peening (SSP) on mechanical, corrosion and cytocompatibility properties of magnesium alloy AZ31. Acta Biomater. 66 (2018) 93-108

Miarka P., Seitl S., Bílek V.: Comparison of Fracture Resistance of the Normal and High Strength Concrete Evaluated by Brazilian Disc Test. Proceedings 2 (2018) 1-6

Náhlík L., Štegnerová K., Hutař P.: Estimation of critical applied stress for crack initiation from a sharp V-notch. Theor. Appl. Fract. Mech. 93 (2018) 247-262

Dlhý P., Poduška J., Náhlík L., Berer M., Gosch A., Pinter G., Hutař P.: Compression-Loaded Cracked Cylinder - Stress Intensity Factor Evaluation. Key Eng. Mater. 774 (2018) 331-336

Malíková (Šestáková) L., Klusák J.: Influence of the Interfacial Transition Zone on crack behavior in a matrix/aggregate system. Procedia Struct. Integr. 13 (2018) 1798-1803

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

Seitl S., Miarka P., Bílek V.: The Mixed-Mode Fracture Resistance of C 50/60 and its Suitability for Use in Precast Elements as Determined by the Brazilian Disc Test and Three-Point Bending Specimens. Theor. Appl. Fract. Mech. 97 (2018) 108-119

Klusák J., Krepl O.: Multi-parameter average strain energy density factor criterion applied on the bi-material notch problem. Procedia Struct. Integr. 13 (2018) 1261-1266


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