Date
2021-10-20Subject
620 Engineering BruchmechanikRissbildungSpannungsintensitätsfaktorApproximationMathematisches ModellMetadata
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Aufsatz
An auxiliary crack approach for efficient approximative crack tip loading analyses
Abstract
An efficient approach based on the path-independent interaction-integral (I-integral) is suggested for assessing the crack tip loading in elastic structures without having to geometrically model a physical crack. Exploiting just the elastic solution of the uncracked structure, the I-integral is adapted incorporating the closed formulation of crack tip stress and displacement fields of an auxiliary crack, which in this approach is interpreted as hypothetical physical crack. Different specimens and crack configurations are investigated, sparing the expensive numerical modeling of discontinuities, and stress intensity factors are assessed according to the auxiliary crack approach. Various results are verified based on classic crack tip loading analyses.
Citation
In: International Journal of Fracture Volume 232 / Issue 2 (2021-10-20) , S. 213-220 ; eissn:1573-2673Sponsorship
Gefördert im Rahmen des Projekts DEALCitation
@article{doi:10.17170/kobra-202112095202,
author={Judt, Paul O. and Ricoeur, Andreas},
title={An auxiliary crack approach for efficient approximative crack tip loading analyses},
journal={International Journal of Fracture},
year={2021}
}
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2022-02-21T16:39:08Z 2022-02-21T16:39:08Z 2021-10-20 doi:10.17170/kobra-202112095202 http://hdl.handle.net/123456789/13646 Gefördert im Rahmen des Projekts DEAL eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ auxiliary crack fields interaction integral crack initiation stress intensity factors approximation 620 An auxiliary crack approach for efficient approximative crack tip loading analyses Aufsatz An efficient approach based on the path-independent interaction-integral (I-integral) is suggested for assessing the crack tip loading in elastic structures without having to geometrically model a physical crack. Exploiting just the elastic solution of the uncracked structure, the I-integral is adapted incorporating the closed formulation of crack tip stress and displacement fields of an auxiliary crack, which in this approach is interpreted as hypothetical physical crack. Different specimens and crack configurations are investigated, sparing the expensive numerical modeling of discontinuities, and stress intensity factors are assessed according to the auxiliary crack approach. Various results are verified based on classic crack tip loading analyses. open access Judt, Paul O. Ricoeur, Andreas doi:10.1007/s10704-021-00597-w Bruchmechanik Rissbildung Spannungsintensitätsfaktor Approximation Mathematisches Modell publishedVersion eissn:1573-2673 Issue 2 International Journal of Fracture 213-220 Volume 232 false
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