Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jiří, Kuželka"'
Publikováno v:
Applied Sciences, Vol 14, Iss 13, p 5882 (2024)
The operational safety of oil and gas storage units is crucial, as any potential imperfections or cracks in a container wall could result in fracture. The key parameter in ensuring the integrity of oil and gas storage units is their fracture toughnes
Externí odkaz:
https://doaj.org/article/55b1ba81e9fe4c908ceb34aad07b1518
Autor:
Milan Růžička, Jiří Kuželka, Petr Měšťánek, Maxim Lutovinov, Radek Procházka, Martin Rund, Martin Nesládek
Publikováno v:
UnpayWall
Microsoft Academic Graph
Procedia Structural Integrity
Microsoft Academic Graph
Procedia Structural Integrity
The paper is an overview of the work conducted in order to investigate thermo-mechanical fatigue (TMF) performance of a CrMo steel applicable to steam turbine shaft design. Uniaxial TMF tests of tubular specimens under various temperature ranges and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab7bb4f3a28e274d6fcf67e317858d2f
https://doi.org/10.1016/j.prostr.2019.12.025
https://doi.org/10.1016/j.prostr.2019.12.025
Publikováno v:
Materials
The purpose of this article is to compare two predictive methods of J integral assessments for center-cracked plates, single-edge cracked plates and double-edge cracked plates produced from X52 and X70 steels, and a longitudinally cracked pipe produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::08456f110720ed104801d8876b142f66
https://pubmed.ncbi.nlm.nih.gov/34361517
https://pubmed.ncbi.nlm.nih.gov/34361517
Publikováno v:
Materials; Volume 15; Issue 4; Pages: 1432
The paper deals with an approximate method for calculating elastic-plastic stresses and strains on the surface of notched samples. The method is based on the Abdel-Karim-Ohno cyclic plasticity model. The plane stress condition is considered within th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::226b3916f5e1d8dd7b2270bb87d49df1
https://doi.org/10.3390/ma15041432
https://doi.org/10.3390/ma15041432
Publikováno v:
Nuclear Engineering and Design. 328:372-380
The FEM simulations in the field of design and safety assessment represent very powerful tools, but they are strongly limited by available material models and material input data. If states near to ductile fracture are to be considered, more complex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e90584ca49b8470607782c154a7cf87d
https://doi.org/10.1016/j.nucengdes.2015.12.014
https://doi.org/10.1016/j.nucengdes.2015.12.014
Publikováno v:
Materials, Vol 14, Iss 4324, p 4324 (2021)
Materials
Volume 14
Issue 15
Materials
Volume 14
Issue 15
The purpose of this article is to compare two predictive methods of J integral assessments for center-cracked plates, single-edge cracked plates and double-edge cracked plates produced from X52 and X70 steels, and a longitudinally cracked pipe produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b004b4ca85d732e6dfb5d7e536ac4b9d
https://doi.org/10.3390/ma14154324
https://doi.org/10.3390/ma14154324
Autor:
Jiří Kuželka, Milan Růžička, Martin Rund, Maxim Lutovinov, J. Jurenka, Petr Měšťánek, Martin Nesládek
Publikováno v:
Procedia Structural Integrity
With increasing share of renewable energy sources in the electricity production strict demands are placed on thermal power plants that have to cover the power shortages more frequently. Increasing number of steam turbine (ST) start-ups and shutdowns,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b73d56acd19d58ab96edad30e4150e05
Publikováno v:
Fatigue & Fracture of Engineering Materials & Structures. 40:27-44
This paper presents an assessment of the performance of a set of multi-axial high-cycle fatigue criteria on the basis of a series of fretting fatigue experiments. We carried out tests on a creep-resistant chromium steel material used for steam-turbin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7263eece7cd45486a31f7dddbe01e2fa
https://doi.org/10.1111/ffe.12470
https://doi.org/10.1111/ffe.12470
Calibration of fracture locus in scope of uncoupled elastic–plastic-ductile fracture material models
Publikováno v:
Advances in Engineering Software. 72:95-108
This paper describes the calibration process for the uncoupled material model of ductile damage designed by Bai and Wierzbicki. This problem has been investigated within the project “Identification of ductile damage parameters for nuclear facilitie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb2d803162ffcf0f12b5526a8825647b
https://doi.org/10.1016/j.advengsoft.2013.05.007
https://doi.org/10.1016/j.advengsoft.2013.05.007
Autor:
Karel Doubrava, Jiří Kuželka
Publikováno v:
Applied Mechanics and Materials. 486:273-276
The paper describes process of verification of FEM model of turbine rotor blade fatigue tests. Design of new turbine blade is tested on experimental stand, where load situation is similar to load of rotor blade of steam turbine during operation. Real
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2137b22734bc9d69409de8db1b7277a3
https://doi.org/10.4028/www.scientific.net/amm.486.273
https://doi.org/10.4028/www.scientific.net/amm.486.273