Local Aspects of Shear-mode Crack Propagation in Austenitic Steel
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F09%3APU86141" target="_blank" >RIV/00216305:26210/09:PU86141 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
čeština
Original language name
Local Aspects of Shear-mode Crack Propagation in Austenitic Steel
Original language description
Two prototype experiments allowing a simultaneous mode II and mode III fatigue crack propagation in a single specimen are described and the differences in related to growth are discussed. Differences between the mechanisms of crack propagation were assessed by means of the 3D fractographical analysis based the stereophotogrammetry in SEM. The stress intensity factors KII and KIII were determined by a numerical method based on the ANSYS code and compared with asymptotically computed values of KIII. The threshold values KIIth (R = 0.1) were found to be of 3.5 MPam1/2 and KIIIth = 4.7 MPam1/2 According to results of stereophotogrammetrical analysis, however, all investigated shear mode cracks propagated under a local mode I. Therefore, such macroscopically determined values can not be considered to be shear- mode thresholds.
Czech name
Local Aspects of Shear-mode Crack Propagation in Austenitic Steel
Czech description
Two prototype experiments allowing a simultaneous mode II and mode III fatigue crack propagation in a single specimen are described and the differences in related to growth are discussed. Differences between the mechanisms of crack propagation were assessed by means of the 3D fractographical analysis based the stereophotogrammetry in SEM. The stress intensity factors KII and KIII were determined by a numerical method based on the ANSYS code and compared with asymptotically computed values of KIII. The threshold values KIIth (R = 0.1) were found to be of 3.5 MPam1/2 and KIIIth = 4.7 MPam1/2 According to results of stereophotogrammetrical analysis, however, all investigated shear mode cracks propagated under a local mode I. Therefore, such macroscopically determined values can not be considered to be shear- mode thresholds.
Classification
Type
D - Article in proceedings
CEP classification
JL - Fatigue and fracture mechanics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GD106%2F09%2FH035" target="_blank" >GD106/09/H035: Multiscale design of advanced materials</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Víceúrovňový design pokrokových materiálů 09
ISBN
978-80-254-6070-2
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
ÚFM AVČR
Place of publication
Brno
Event location
Ústav fyziky materiálů AVČR, Žižkova 22, B
Event date
Dec 3, 2009
Type of event by nationality
CST - Celostátní akce
UT code for WoS article
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