Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Jan Poduška"'
Publikováno v:
MethodsX, Vol 9, Iss , Pp 101768- (2022)
Very often a manufacturing process is followed by some surface treatment. Such a process induces residual stress into the manufactured component. Compressive residual stress is desirable for enhancing the fatigue properties of the component. The resi
Externí odkaz:
https://doaj.org/article/2ac909eb4ff944748c3fe37987195de3
Autor:
Andreas Frank, Mario Messiha, Thomas Koch, Jan Poduška, Pavel Hutař, Florian Arbeiter, Gerald Pinter
Publikováno v:
Polymer Testing, Vol 95, Iss , Pp 107125- (2021)
The applicability of the cracked round bar (CRB) test according ISO 18489 for the characterization of slow crack growth (SCG) in unplasticized polyvinylchloride (PVC–U) was analyzed by testing three PVC-U pipe compounds with different molecular mas
Externí odkaz:
https://doaj.org/article/ead8ab909eb442b58d42d0d7258d839b
Autor:
Jacopo Schieppati, Bernd Schrittesser, Stefano Tagliabue, Luca Andena, Armin Holzner, Jan Poduška, Gerald Pinter
Publikováno v:
Materials, Vol 15, Iss 11, p 3745 (2022)
The fatigue behavior of a filled non-crystallizing elastomer was investigated on axisymmetric dumbbell specimens. By plotting relevant Wöhler curves, a power law behavior was found. In addition, temperature increases due to heat build-up were monito
Externí odkaz:
https://doaj.org/article/1402283e3c8246caafc357fd6ab75f54
Publikováno v:
Advances in Materials Science and Engineering, Vol 2019 (2019)
Neat polyurethane (PU) specimens and composites of polyurethane with variable amounts of multiwalled carbon nanotubes (MWCNTs) were subjected to tensile tests, stress relaxation tests, and strain rate jumps. Since the already published data about the
Externí odkaz:
https://doaj.org/article/3f6b56b3866e4e77963a75a8955af35e
Publikováno v:
Materials, Vol 14, Iss 10, p 2656 (2021)
The problem of crack propagation from internal defects in thermoplastic cylindrical bearing elements is addressed in this paper. The crack propagation in these elements takes place under mixed-mode conditions—i.e., all three possible loading modes
Externí odkaz:
https://doaj.org/article/ca4028d7805f4b9799ddf4ed575390a1
Autor:
Aleksa Milovanović, Jan Poduška, Lukaš Trávníček, Luboš Náhlík, Aleksandar Sedmak, Miloš Milošević, Filippo Berto
Publikováno v:
Procedia Structural Integrity. 42:847-856
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9661a12bee2adcfb7dc12b1a8ef7a6f8
https://doi.org/10.1016/j.prostr.2022.12.107
https://doi.org/10.1016/j.prostr.2022.12.107
Publikováno v:
Procedia Structural Integrity. 2023, vol. 43, issue 1, p. 148-153.
Due to the very long operational lifetimes (up to 100 years) of polyethylene pipes, there is a strong demand for accelerated testing of pipe materials to experimentally prove the ability of a certain material to achieve such lifetime. Among the accel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::604ad3d952aea0ab47338d9e6110f246
https://hdl.handle.net/11012/209222
https://hdl.handle.net/11012/209222
Publikováno v:
Key Engineering Materials. 827:141-146
Outstanding durability of plastic pressure and non-pressure pipes can cause difficulties, when a reasonable lifetime estimation is needed. It is impossible to prove the lifetime by testing, but there is a method of calculation that can provide a cert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::914043eadbc44bfcc36a301a04452481
https://doi.org/10.4028/www.scientific.net/kem.827.141
https://doi.org/10.4028/www.scientific.net/kem.827.141
Autor:
Pavel Hutař, Gerald Pinter, Andreas Frank, Jaroslav Kučera, Jan Poduška, Jiří Sadílek, Luboš Náhlík
Publikováno v:
Journal of Mechanical Engineering, Vol 69, Iss 3, Pp 101-106 (2019)
Lifetime of plastic pipes can be estimated by integration of a power law describing the crack kinetics. However, this procedure requires an FEM (finite element method) calculation of the possible crack propagation in the pipe to obtain stress intensi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9914fb05651376260b2b409fbce0ee67
https://doi.org/10.2478/scjme-2019-0036
https://doi.org/10.2478/scjme-2019-0036
Publikováno v:
Procedia Structural Integrity. 23:185-190
Residual stresses play an important role in propagation of potential fatigue cracks and they influence residual fatigue lifetime of railway axles. Essential step for assessment of residual fatigue lifetimes of railway axles is determination of magnit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7930d6a21ecc1fa1c111a7032b3e3457
https://doi.org/10.1016/j.prostr.2020.01.084
https://doi.org/10.1016/j.prostr.2020.01.084