Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Hynek Lauschmann"'
Publikováno v:
Image Analysis and Stereology, Vol 27, Iss 2, Pp 63-71 (2011)
The morphology of fatigue fracture surface (caused by constant cycle loading) is strictly related to crack growth rate. This relation may be expressed, among other methods, by means of fractal analysis. Fractal dimension as a single numerical value i
Externí odkaz:
https://doaj.org/article/5eb08a0c3ceb40ef88f047a856f8598d
Autor:
Hynek Lauschmann, Ivan Nedbal
Publikováno v:
Image Analysis and Stereology, Vol 21, Iss 2, Pp 139-144 (2011)
The aim of this study is to estimate the velocity of fatigue crack growth (crack growth rate - CGR) from the texture in SEM images of crack surfaces. A simple and quick method is based on fitting training images as a linear combination of several sma
Externí odkaz:
https://doaj.org/article/bdebf905a6344c98bcb15aaa1fa0ffd5
Autor:
Hynek Lauschmann, Filip Šiška
Publikováno v:
Acta Metallurgica Slovaca, Vol 19, Iss 2 (2013)
Reference features of a fatigue fracture surface are the reference texture and reference crack growth rate which are unambiguously mutually related. The reference texture is a subset of the image texture in SEM fractographs. It is expected to be comm
Externí odkaz:
https://doaj.org/article/aa57c7ef667749f6a1f66e7b3ab87294
Publikováno v:
Image Analysis and Stereology, Vol 21, Iss 4 (2011)
The reconstitution of the history of a fatigue process is based on the knowledge of any correspondences between the morphology of the crack surface and the velocity of the crack growth (crack growth rate - CGR). The textural fractography is oriented
Externí odkaz:
https://doaj.org/article/0a2a2f7005384b73913d8aebb3ff8f3e
Publikováno v:
Defect and Diffusion Forum. 405:259-263
Three CT specimens from stainless steel AISI 304L were subjected to constant amplitude cyclic loadings with various asymmetries. Crack growth was recorded in detail. Fracture surfaces were documented by 3D maps in about 110 locations in the crack gro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::065b9e588fa69db441753ad0ea974829
https://doi.org/10.4028/www.scientific.net/ddf.405.259
https://doi.org/10.4028/www.scientific.net/ddf.405.259
Publikováno v:
Journal of Multiscale Modelling. 13
In this paper, an elastic–plastic finite element model was built to simulate the stress field around a fatigue crack in a standard CT specimen before and after splitting to obtain a rectangular specimen for further investigation. Plane stress and p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe0c63c39f2e1f1900709528cf8ba7c9
https://doi.org/10.1142/s1756973721440030
https://doi.org/10.1142/s1756973721440030
Publikováno v:
Engineering Failure Analysis. 145:106999
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdcc2984a8f96f67ed06f5007c218f01
https://doi.org/10.1016/j.engfailanal.2022.106999
https://doi.org/10.1016/j.engfailanal.2022.106999
Publikováno v:
Key Engineering Materials. 827:7-12
A two-dimensional elastic-plastic finite element model was built to simulate the closure of a long fatigue crack with arbitrarily shaped crack faces. The model growth is simulated by the successive mesh splitting along the crack path defined by eleme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f63c7f93f3bd417423af192be385ad0
https://doi.org/10.4028/www.scientific.net/kem.827.7
https://doi.org/10.4028/www.scientific.net/kem.827.7
Publikováno v:
Procedia Structural Integrity. 23:107-112
A general method of statistical classification for estimating the fatigue crack growth rate on the basis of 3D features of fracture surfaces is proposed. Three CT specimens from stainless steel AISI 304L were loaded by a constant cycle, the same with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec131fb5978bcdb8f3e0828aea7cbee2
https://doi.org/10.1016/j.prostr.2020.01.071
https://doi.org/10.1016/j.prostr.2020.01.071
Autor:
Ondřej Kovářík, Hynek Lauschmann
Publikováno v:
Key Engineering Materials. :107-112
The reference texture is a subset of the image texture in SEM fractographs of fatigue fractures. It is common to all fractures caused by loadings in which significant events occur sufficiently regularly and frequently. The reference crack growth rate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2b4d5a4629fbeabd643740adefa1093
https://doi.org/10.4028/www.scientific.net/kem.592-593.107
https://doi.org/10.4028/www.scientific.net/kem.592-593.107