Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Michal Zouhar"'
Autor:
Pavel Hutař, Luboš Náhlík, Gerald Pinter, Zdeněk Majer, Martin Ševčík, Michal Zouhar, Andreas Frank
Publikováno v:
Polymer Engineering & Science. 56:79-86
Polymer pipe lifetime is conventionally estimated by internal pressure test. However, important for service are also other types of loading as: additional bending, different type of external loading from sand embedding, or effect of the residual stre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af31d77f0148f1edccd1a562906e4d2f
https://doi.org/10.1002/pen.24194
https://doi.org/10.1002/pen.24194
Publikováno v:
Mechanics of Composite Materials. 50:9-16
The critical configuration of a crack arrested at a bimaterial interface is estimated. The stability of the crack in the soft material, whose front is situated at the interface between soft and stiff materials and who grows continuously sideways, is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c52b9d18ad7b207e9ccad538d743863
https://doi.org/10.1007/s11029-014-9388-0
https://doi.org/10.1007/s11029-014-9388-0
Publikováno v:
Engineering Failure Analysis. 33:151-162
It is widely recognised that quasi-brittle fracture (through initiation and subsequent crack propagation mechanism) at low stresses is the most common mode of failure for high-density polyethylene pressure pipes. Slow crack growth in such pipes usual
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66c6daf43977fa171a35fd627b79386e
https://doi.org/10.1016/j.engfailanal.2013.04.022
https://doi.org/10.1016/j.engfailanal.2013.04.022
Publikováno v:
Key Engineering Materials. :533-536
The most relevant loading conditions for real polymer pipe systems are not only internal pressure, but also loading caused by sand embedding including bending or different kinds of point loads. It has been shown that service lifetime of buried pipes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51327d7ad6a61b078bcd390357e3a18f
https://doi.org/10.4028/www.scientific.net/kem.577-578.533
https://doi.org/10.4028/www.scientific.net/kem.577-578.533
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
Publikováno v:
Computational Materials Science. 64:225-228
Surface crack propagation in a thin soft protective layer on a massive stiffer substrate is analysed using generalised linear elastic fracture mechanics. The growth of the initial crack is considered in both forward and sideways directions and the in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::979427a12ec152cb05e59d3857b82e47
https://doi.org/10.1016/j.commatsci.2012.04.049
https://doi.org/10.1016/j.commatsci.2012.04.049
Publikováno v:
Key Engineering Materials. :177-180
The most relevant loading conditions for real polymer pipe systems are not only internal pressure, but also loading caused by sand embedding including bending or different kinds of point loads. It has been shown that service lifetime of buried pipes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::faed4b6b314a8cc543ec5af7b18e7cd2
https://doi.org/10.4028/www.scientific.net/kem.525-526.177
https://doi.org/10.4028/www.scientific.net/kem.525-526.177
Publikováno v:
International Journal of Fatigue. 39:75-80
An iterative process for the estimation of a fatigue crack front based on linear elastic fracture mechanics using values of the stress singularity exponent is presented. Based on the assumption of a constant stress singularity exponent along the crac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6862780b6c776ccdc520ab54387452fb
https://doi.org/10.1016/j.ijfatigue.2011.03.010
https://doi.org/10.1016/j.ijfatigue.2011.03.010
Publikováno v:
International Journal of Structural Integrity. 3:118-126
PurposeFrom the practical point of view, most relevant damage to high density polyethylene (HDPE) structures is caused by slow crack growth. Therefore, detailed information about this type of damage is necessary. Experimental results transfer from sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bef6b039ef10be7457da751dac7759f0
https://doi.org/10.1108/17579861211235156
https://doi.org/10.1108/17579861211235156
Publikováno v:
Key Engineering Materials. :162-165
The multi-layered structure components of dissimilar materials are used in many engineering applications to protect the base structure from outer damage. Typical examples of coated structures are pipes with the dimensional addition of protective laye
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a2d875b9bef807a4453938108d0e365
https://doi.org/10.4028/www.scientific.net/kem.488-489.162
https://doi.org/10.4028/www.scientific.net/kem.488-489.162