Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Jaroslav Pokluda"'
Autor:
Karel Slámečka, Adelia Kashimbetova, Jaroslav Pokluda, Tomáš Zikmund, Jozef Kaiser, Edgar B. Montufar, Ladislav Čelko
Publikováno v:
Materials & Design, Vol 225, Iss , Pp 111453- (2023)
Metallic porous structures (scaffolds) produced by additive manufacturing represent an important class of personalised implants used in load-bearing orthopaedic applications. As such, their fatigue performance must be excellent to prevent the need fo
Externí odkaz:
https://doaj.org/article/b07b0b2ca0ed42c69823dca2a20d0451
Autor:
Tom� Profant, Jaroslav Pokluda
Publikováno v:
Frattura ed Integrità Strutturale, Vol 13, Iss 49, Pp 107-114 (2019)
When the width of cracked nanocomponents made of brittle or quasi-brittle materials is less than approximately , the size of the - dominance zone becomes smaller than and comparable to the fracture process zone ( ). The fracture process starts to be
Externí odkaz:
https://doaj.org/article/a5bd33b8308a47aaaf4bad7e61b7e132
Publikováno v:
Frattura ed Integrità Strutturale, Vol 11, Iss 41, Pp 245-251 (2017)
. Closure-free long cracks under the remote mode III loading grow in a more complicated way than those under the remote mode II. For bcc metals, a coplanar in-plane spreading of tongues driven by the local mode II loading components at crack-front as
Externí odkaz:
https://doaj.org/article/c1fd91ddd30b4b2f860ed6b07e82d049
Autor:
Tomas Profant, Jaroslav Pokluda
Publikováno v:
Frattura ed Integrità Strutturale, Vol 13, Iss 49 (2019)
When the width of cracked nanocomponents made of brittle or quasi-brittle materials is less than approximately , the size of the - dominance zone becomes smaller than and comparable to the fracture process zone ( ). The fracture process starts to be
Externí odkaz:
https://doaj.org/article/42c688706cea416a9e0f74893e751e34
Publikováno v:
Crystals, Vol 10, Iss 7, p 590 (2020)
The cohesive strength of Σ 3, Σ 5, and Σ 11 grain boundaries (GBs) in clean and hydrogen-segregated fcc nickel was systematically studied as a function of the superimposed transverse biaxial stresses using ab initio methods. The obtained results f
Externí odkaz:
https://doaj.org/article/58664945c4384393b451693cbfb58b16
Autor:
Karel Slámečka, Petr Šesták, Tomáš Vojtek, Marta Kianicová, Jana Horníková, Pavel Šandera, Jaroslav Pokluda
Publikováno v:
Advances in Materials Science and Engineering, Vol 2016 (2016)
Results are given of a fractographic study of biaxial in-phase bending/torsion fatigue fractures in specimens made of nitrided steel and nickel-based superalloy with protective coatings (diffusion coatings and plasma-sprayed thermal barrier coatings)
Externí odkaz:
https://doaj.org/article/b2514909ce6e4fe2b6d89e58a0506de3
Publikováno v:
Advances in Materials Science and Engineering, Vol 2016 (2016)
Mechanical response of a perfect bcc tungsten crystal to a multiaxial loading was investigated from first principles. The multiaxial stress state consisted of the shear stress and a superimposed compressive triaxial stress with various levels of diff
Externí odkaz:
https://doaj.org/article/c7a92cf6478d4a21ae606c363682537f
Autor:
Jaroslav Pokluda
Publikováno v:
Communications, Vol 6, Iss 2, Pp 5-11 (2004)
The significance of theoretical strength (TS) investigations is explained and a brief overview of the current state of TS calculations is presented on the background of a historical evolution. Influence of crystal defects on TS is outlined by taking
Externí odkaz:
https://doaj.org/article/bd09880f1d55460c80a17a78f3f1ef4f
Publikováno v:
Defect and Diffusion Forum. 422:45-49
The absorbed impact energy KV and the dynamic fracture toughness KId of the low-alloyed steel OCHN3MFA were measured in the respective temperature ranges 〈–40, 90〉 and 〈–60, –20〉 °C. The values of impact energy in the range of 〈14.1,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b7de833fa35e72f591e51f76f61f090
https://doi.org/10.4028/p-psqq46
https://doi.org/10.4028/p-psqq46
Autor:
Jaroslav Pokluda
Publikováno v:
Procedia Structural Integrity. 43:1-2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::964762405dcf74576382ac3d5d4adf55
https://doi.org/10.1016/j.prostr.2022.12.225
https://doi.org/10.1016/j.prostr.2022.12.225