Quantitative fractography of fatigue cracks: A new solution in 3D

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00346209" target="_blank" >RIV/68407700:21340/19:00346209 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.prostr.2020.01.071" target="_blank" >https://doi.org/10.1016/j.prostr.2020.01.071</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.prostr.2020.01.071" target="_blank" >10.1016/j.prostr.2020.01.071</a>

Result language
angličtina
Original language name
Quantitative fractography of fatigue cracks: A new solution in 3D
Original language description
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 regular overload, and a periodically repeating block of random cycles. Crack growth was recorded in detail. Fracture surfaces were documented by 3D reconstructions of their morphology along central axis in crack growth direction. 3D reconstructions were decomposed in 8 levels by means of sequential wavelet transformation. Each level was represented by 1662 features - parameters of roughness and morphometry computed from line profiles and areal data. Reconstitution of crack growth history on the basis of a single 3D feature at all levels of decomposition was investigated. In all cases, several tens of features enabled this with an acceptable precision. Quality of results is documented by graphs comparing crack growth rates and crack growth history estimated on the basis of fracture surface with real values known from the experiment. Training and testing approach has been applied.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
9th International Conference Materials Structure & Micromechanics of Fracture (MSMF9)
ISBN
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ISSN
2452-3216
e-ISSN
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Number of pages
6
Pages from-to
107-112
Publisher name
Elsevier B.V.
Place of publication
Amsterdam
Event location
Brno
Event date
Jun 26, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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