Recent Developments in Textural Fractography of Fatigue Fractures

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F12%3A00199903" target="_blank" >RIV/68407700:21340/12:00199903 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Recent Developments in Textural Fractography of Fatigue Fractures
Original language description
Textural fractography consists in relating fatigue crack growth rate (CGR) with the image texture in SEM fractographs. Two improvements were finalized in 2010-2011: 1. Textural analysis based on 3D crack surface representation was proposed and tested onCT specimens made from aluminum alloy. Crack surfaces were documented by SEM images, and four methods of 3D reconstruction. Results based on 3D reconstruction from equidistantly focused optical images almost reached quality of standard analysis from SEMimages. 2. A physical explanation of reference features was proposed. A common subset of image textures in fractographs of fatigue fractures, reference texture, is unambiguously linked with the reference crack growth rate. Reference features were found to be closely related to a parameter derived from successive sizes of cyclic plastic zone. In application on CT specimens from aluminum alloy loaded by 3 loading regimes, a maximal discrepancy of reference factors of about 20% was reached.
Czech name
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Czech description
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Project
<a href="/en/project/FR-TI2%2F447" target="_blank" >FR-TI2/447: *Field Analyzer of Machine Constructions Fatigue Stress using Acoustical Emission</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 4th International Conference on Crack Paths
ISBN
9788895940441
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
807-814
Publisher name
University of Parma
Place of publication
Parma
Event location
Gaeta
Event date
Sep 19, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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