Search Results - "Pokluda, J."

Ab initio calculations of mechanical properties: Methods and applications by Pokluda, J., Černý, M., Šob, M., Umeno, Y.

“…This article attempts to critically review a rather extended field of ab initio calculations of mechanical properties of materials. After a brief description…”
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Finite element simulation of stresses in a plasma-sprayed thermal barrier coating with a crack at the TGO/bond-coat interface by Skalka, P., Slámečka, K., Pokluda, J., Čelko, L.

“…Plasma-sprayed TBCs typically consist of a ceramic top-coat and a metallic bond-coat with an irregular metal/ceramic interface, which is required for better…”
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Near-threshold behaviour of shear-mode fatigue cracks in metallic materials by Pokluda, J., Pippan, R., Vojtek, T., Hohenwarter, A.

“…ABSTRACT This review paper presents a brief state‐of‐the art of the research on long fatigue shear‐mode cracks and describes some recent results on effective…”
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On the segregation behavior of tin and antimony at grain boundaries of polycrystalline bcc iron by Lejček, P., Šandera, P., Horníková, J., Pokluda, J., Godec, M.

“…Temperature dependence of the grain boundary concentration of the solute: (a) Fe–Sn alloy; (b) Fe–Sb alloy. Dashed lines – prediction of XIGB for general (G)…”
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Analysis of fatigue crack propagation under mixed mode II+III in ARMCO iron by Vojtek, T., Pokluda, J., Šandera, P., Horníková, J., Hohenwarter, A., Pippan, R.

“…•Mixed-mode II+III fatigue cracks propagation experiments in ARMCO iron were done.•Small-scale yielding was verified by both analytical and numerical…”
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The theoretical shear strength of fcc crystals under superimposed triaxial stress by Černý, M., Pokluda, J.

“…The influence of a triaxial stress applied normally to shear planes and shear direction during affine shear deformation of face-centered cubic crystals on the…”
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Three-dimensional morphology of fracture surfaces generated by modes II and III fatigue loading in ferrite and austenite by Vojtek, T., Pokluda, J., Hohenwarter, A., Pippan, R.

“…► 3D fractography of shear-mode cracks in ARMCO iron and austenitic steel. ► Statistics of crack-growth profile angles with respect to applied shear stress. ►…”
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Near-threshold propagation of mode II and mode III fatigue cracks in ferrite and austenite by Vojtek, T., Pippan, R., Hohenwarter, A., Holáň, L., Pokluda, J.

“…The near-threshold behavior of mode II and mode III long fatigue cracks in ferritic (ARMCO iron) and austenitic (X5CrNi18-10) steel were experimentally studied…”
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Shear instabilities in perfect bcc crystals during simulated tensile tests by Černý, M., Šesták, P., Pokluda, J., Šob, M.

“…This work demonstrates a simple but efficient way as to how to determine the existence of shear instabilities in ideal bcc crystals under uniaxial loading. The…”
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Bending fatigue failure of atmospheric-plasma-sprayed CoNiCrAlY+YSZ thermal barrier coatings by Slámečka, K., Čelko, L., Skalka, P., Pokluda, J., Němec, K., Juliš, M., Klakurková, L., Švejcar, J.

“…•Bending fatigue strength is insensitive to the presence of the thermally grown oxide.•Preferential through-the-thickness TGO cracking explains experimental…”
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Theoretical strength of solids: recent results and applications by Pokluda, J.

“…We present the results of recent achievements in the field of atomistic evaluation of the theoretical (ideal) strength of solids with emphasis on the ab initio…”
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Simple criterion for predicting fatigue life under combined bending and torsion loading by Slámecka, K., Pokluda, J.

“…Multiaxial fatigue is a challenging problem and, consequently, a number of methods has been developed to aid in design of components and assemblies. Following…”
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On the effect of deformation twins on stability of B19′ structure in NiTi martensite by Šesták, P., Černý, M., Pokluda, J.

“…•(100) compound twins in NiTi martensite are studied for several densities.•All related computational cells are optimized using a first principles…”
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Can twinning stabilize B19′ structure in NiTi martensite? by Šesták, P., Černý, M., Pokluda, J.

“…Although experimental observations determine the martensite structure of NiTi as monoclinic (B19′), ab-initio calculations show that, after a full optimization…”
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Fatigue life of cast Inconel 713LC with/without protective diffusion coating under bending, torsion and their combination by Slámečka, K., Pokluda, J., Kianicová, M., Horníková, J., Obrtlík, K.

“…► Indication of different crack initiation mechanisms in torsion and bending loading. ► This effect related to a critical normal stress explains mutual shifts…”
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Toughening effects quantification in glass matrix composite reinforced by alumina platelets by Kotoul, M., Pokluda, J., Šandera, P., Dlouhý, I., Chlup, Z., Boccaccini, A.R.

“…A borosilicate glass matrix composite containing alumina platelets was considered to investigate toughening mechanisms and crack tip behavior in dispersion…”
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Solute segregation at 46.8°(111) twist grain boundary of a phosphorus doped Fe–2.3%V alloy by Lejček, P., Pokluda, J., Šandera, P., Horníková, J., Jenko, M.

“…The Auger electron spectroscopy study on chemistry of the 46.8°(111) twist grain boundary of an Fe–2.3%V alloy showed an extended phosphorus enrichment at…”
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Effects of microstructure and crystallography on crack path and intrinsic resistance to shear-mode fatigue crack growth by Pokluda, J, Vojtek, T, Hohenwarter, A, Pippan, R

“…The paper focuses on the effective resistance and the near-threshold growth mechanisms in the ferritic-pearlitic and the pure pearlitic steel. The influence of…”
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Can pure mode III fatigue loading contribute to crack propagation in metallic materials? by POKLUDA, J., PIPPAN, R.

“…ABSTRACT The possibility of pure mode III crack growth is analysed on the background of theoretical and experimental results obtained in the last 20 years…”
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Influence of normal stress on shear strength along 〈1 1 1〉{1 1 0} and 〈1 1 1〉{1 1 2} deformation paths in B2 NiTi alloy from first principles by Šesták, P., Černý, M., Pokluda, J.

“…Influence of the superimposed normal stress on the shear strength along the 〈1 1 1〉 direction in {1 1 0} and {1 1 2} shear planes is studied from first…”
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