Intralaminar crack growth rates of a glass fibre multiaxial laminate subjected to variable amplitude loading
dc.contributor.author
dc.date.accessioned
2023-06-16T09:12:37Z
dc.date.available
2023-06-16T09:12:37Z
dc.date.issued
2023-03-01
dc.identifier.issn
1359-8368
dc.identifier.uri
dc.description.abstract
The literature shows that variable amplitude loading can be much more severe than constant amplitude loading in a fatigue damage context. However, the underlying physical explanations for this are still unknown. Therefore, this paper investigates if the local energy release rate at each intralaminar crack tip in a tension/tension fatigue loaded multidirectional laminate can be used to determine the crack growth rate of these cracks subjected to variable amplitude loading. The local energy release rate is investigated through a developed finite element model in which any number of cracks can be included to account for their interaction. The position of the cracks is determined based on previous experimental work. The experimental results from the previous work are compared to the numerical results in this work. At similar crack density levels the energy release rates increase in the variable amplitude tests compared to constant amplitude tests, but not enough to significantly impact the crack growth rate. It is concluded that less than 5% of the increased crack density rate and crack growth rate caused by variable amplitude block loading is due to increases in local energy release rate. The primary reason is more likely found on a microstructural level
dc.description.sponsorship
This work is supported by the Talent Management Programme at Aalborg University, Denmark (Internal grant number: 771120
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1016/j.compositesb.2023.110510
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Composites Part B: Engineering, 2023, vol. 252, art. núm. 110510
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Articles publicats (D-EMCI)
dc.rights
Attribution 4.0 International
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dc.subject
dc.title
Intralaminar crack growth rates of a glass fibre multiaxial laminate subjected to variable amplitude loading
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
036846
dc.type.peerreviewed
peer-reviewed
dc.identifier.eissn
1879-1069