Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Jiří Sadílek"'
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
Autor:
Jiří Sadílek, Pavel Hutař, Jan Poduška, Jaroslav Kučera, Luboš Náhlík, Pavol Dlhý, Andreas Frank
Publikováno v:
Procedia Structural Integrity. 23:293-298
Plastic pipe producers are forced by various initiatives to increase the content of recycled material in their products. The performance of the recycled material is worse than the performance of the virgin material. That is why plastic pipes made ent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4e4e7ac91e0b127f87232fa0950859c
https://doi.org/10.1016/j.prostr.2020.01.102
https://doi.org/10.1016/j.prostr.2020.01.102
Autor:
Matyáš Horálek, Radek Přikryl, Soňa Kontárová, Veronika Melčová, Silvestr Figalla, Přemysl Menčík, Jiří Sadílek, Aneta Pospisilova, Jozef Feranc, Roderik Plavec
Publikováno v:
Materials
Volume 13
Issue 21
Materials, Vol 13, Iss 4736, p 4736 (2020)
Materials . 2020, vol. 13, issue 21, p. 1-27.
Volume 13
Issue 21
Materials, Vol 13, Iss 4736, p 4736 (2020)
Materials . 2020, vol. 13, issue 21, p. 1-27.
This paper investigates the effect of plasticizer structure on especially the printability and mechanical and thermal properties of poly(3-hydroxybutyrate)-poly(lactic acid)-plasticizer biodegradable blends. Three plasticizers, acetyl tris(2-ethylhex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b5acdf846c29d09f1c0e7c0d7c97dcc
https://pubmed.ncbi.nlm.nih.gov/33114009
https://pubmed.ncbi.nlm.nih.gov/33114009
Autor:
Jiří Sadílek, Luboš Náhlík, Jan Poduška, Andreas Frank, Gerald Pinter, Pavel Hutař, Jaroslav Kučera
Publikováno v:
Engineering Fracture Mechanics. 203:18-31
The Cracked Round Bar (abbreviated as CRB in the following) test is used as standardized accelerated testing method for simple ranking of polyethylene pipes based on measuring number of cycles to failure of the cyclically loaded CRB specimen. It can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b87993ad6a2918a0d9f265790e883c60
https://doi.org/10.1016/j.engfracmech.2018.06.032
https://doi.org/10.1016/j.engfracmech.2018.06.032
Autor:
Andreas Frank, Gerald Pinter, Jaroslav Kučera, Pavel Hutař, Jan Poduška, Jiří Sadílek, Luboš Náhlík
Publikováno v:
Solid State Phenomena. 258:174-177
Accelerated tests of the polyethylene pipes are necessary for the pipe lifetime calculations. Accepted methodology for prediction of slow crack grow rate in these materials is fatigue testing of CRB (cracked round bar) specimens. This paper deals wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84e54e3b957497c1143a56ad1d2bd7ed
https://doi.org/10.4028/www.scientific.net/ssp.258.174
https://doi.org/10.4028/www.scientific.net/ssp.258.174
Autor:
Gerald Pinter, Andreas Frank, Jiří Sadílek, Jaroslav Kučera, Jan Poduška, Pavel Hutař, Luboš Náhlík
Publikováno v:
Polymer Testing. 54:288-295
This paper deals with residual stress in polyethylene (PE) pipes as an important factor that influences their lifetime. Residual hoop stress distribution in a PE pipe was determined using a methodology previously carried out by the authors on polypro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82fa8cf7449c7a70176c18c005f2dd4d
https://doi.org/10.1016/j.polymertesting.2016.07.017
https://doi.org/10.1016/j.polymertesting.2016.07.017
Autor:
Luboš Náhlík, Martin Ševčík, Jan Poduška, Pavel Hutař, J. Křivánek, Jiří Sadílek, Jaroslav Kučera
Publikováno v:
Polymer Testing. 40:88-98
This paper deals with the experimental determination of residual stress and other inherent properties, density, yield stress, specific enthalpy of fusion and melting point temperature, of a polypropylene grade for pipe applications. The most importan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ded020f5d539d169bc570da8e2c5725e
https://doi.org/10.1016/j.polymertesting.2014.08.006
https://doi.org/10.1016/j.polymertesting.2014.08.006
Autor:
Jiří Sadílek, Jan Poduška, J. Křivánek, Luboš Náhlík, Jaroslav Kučera, Martin Ševčík, Pavel Hutař
Publikováno v:
Key Engineering Materials. 627:141-144
As a result of the production process, there are axial and tangential residual stresses present in pressure pipes made of polymer materials such as polyethylene or polypropylene. The residual stress magnitude and distribution have a significant influ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2fda97128d5fa58cf0ab74c3058b0d2
https://doi.org/10.4028/www.scientific.net/kem.627.141
https://doi.org/10.4028/www.scientific.net/kem.627.141
Publikováno v:
Polymer Testing. 32:106-114
The failure mode termed long time brittle failure (due to slow crack growth – SCG) limits the lifetime of plastic pipes. There are now two main accelerated tests (PENT and FNCT) that enable us to estimate the lifetime of HDPE used in plastics pipes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd907d194058f9fdb2bda8b991402d1f
https://doi.org/10.1016/j.polymertesting.2012.09.009
https://doi.org/10.1016/j.polymertesting.2012.09.009