Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding concept
The fictitious notch rounding concept is applied for the first time to V-notches with root hole subjected to in-plane mixed mode loading. Out-of-bisector crack propagation is taken into account. The fictitious notch radius is determined as a function of the real notch radius the microstructural...
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2015-10-01
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Online Access: | http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_18.pdf |
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doaj-501ba9078c2344a0a652dca9ce8e764b2020-11-24T23:44:07ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89931971-89932015-10-0193416917910.3221/IGF-ESIS.34.18Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding conceptF. Berto0University of Padova, ItalyThe fictitious notch rounding concept is applied for the first time to V-notches with root hole subjected to in-plane mixed mode loading. Out-of-bisector crack propagation is taken into account. The fictitious notch radius is determined as a function of the real notch radius the microstructural support length and the notch opening angle. Due to the complexity of the problem, a method based on the simple normal stress failure criterion has been used. It is combined with the maximum tangential stress criterion to determine the crack propagation angle. An analytical method based on Neuber's procedure has been developed. The method provides the values of the microstructural support factor as a function of the mode ratio and the notch opening angle. The support factor is considered to be independent of the microstructural support length. Finally, for comparison, the support factor is determined on a purely numerical basis by iterative analysis of FE models.http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_18.pdfFictitious notch roundingMixed mode loadingV-notches with root holeMicrostructural support. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
F. Berto |
spellingShingle |
F. Berto Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding concept Frattura ed Integrità Strutturale Fictitious notch rounding Mixed mode loading V-notches with root hole Microstructural support. |
author_facet |
F. Berto |
author_sort |
F. Berto |
title |
Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding concept |
title_short |
Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding concept |
title_full |
Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding concept |
title_fullStr |
Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding concept |
title_full_unstemmed |
Crack initiation at V-notch tip subjected to in-plane mixed mode loading: An application of the fictitious notch rounding concept |
title_sort |
crack initiation at v-notch tip subjected to in-plane mixed mode loading: an application of the fictitious notch rounding concept |
publisher |
Gruppo Italiano Frattura |
series |
Frattura ed Integrità Strutturale |
issn |
1971-8993 1971-8993 |
publishDate |
2015-10-01 |
description |
The fictitious notch rounding concept is applied for the first time to V-notches with root hole
subjected to in-plane mixed mode loading. Out-of-bisector crack propagation is taken into account. The
fictitious notch radius is determined as a function of the real notch radius the microstructural support length
and the notch opening angle. Due to the complexity of the problem, a method based on the simple normal
stress failure criterion has been used. It is combined with the maximum tangential stress criterion to determine
the crack propagation angle. An analytical method based on Neuber's procedure has been developed. The
method provides the values of the microstructural support factor as a function of the mode ratio and the notch
opening angle. The support factor is considered to be independent of the microstructural support length.
Finally, for comparison, the support factor is determined on a purely numerical basis by iterative analysis of FE
models. |
topic |
Fictitious notch rounding Mixed mode loading V-notches with root hole Microstructural support. |
url |
http://www.gruppofrattura.it/pdf/rivista/numero34/numero_34_art_18.pdf |
work_keys_str_mv |
AT fberto crackinitiationatvnotchtipsubjectedtoinplanemixedmodeloadinganapplicationofthefictitiousnotchroundingconcept |
_version_ |
1725499973045321728 |