Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/21144
Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Morais, Alfredo | pt |
dc.contributor.author | Pereira, António Bastos | pt |
dc.contributor.author | Moura, M. F. S. F. de | pt |
dc.contributor.author | Silva, F. G. A. | pt |
dc.contributor.author | Dourado, N. | pt |
dc.date.accessioned | 2017-12-13T12:27:59Z | - |
dc.date.issued | 2015-04-01 | - |
dc.identifier.issn | 0263-8223 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/21144 | - |
dc.description.abstract | This paper presents an experimental and numerical study of the mixed-mode I-II delamination of unidirectional carbon/epoxy laminates. Double cantilever beam, end-notched flexure and mixed-mode bending tests were conducted in order to cover the full range of mode-mix combinations. Finite element cohesive zone models with a bilinear softening cohesive law were subsequently employed to fit experimental load-displacement curves. This required a genetic algorithm to find optimal bilinear softening parameters. Good agreement was achieved between predicted and experimental curves. Furthermore, the bilinear softening parameters showed consistent variations with the global mode-mix that could be interpreted in terms of local damage mechanisms. Nevertheless, further research is needed to define mixed-mode tractions and separations leading to a unique cohesive law. | pt |
dc.language.iso | eng | pt |
dc.publisher | Elsevier | pt |
dc.rights | restrictedAccess | por |
dc.subject | Delamination | pt |
dc.subject | Mixed-mode I-II | pt |
dc.subject | Mixed-mode bending | pt |
dc.subject | Cohesive law | pt |
dc.subject | Inverse method | pt |
dc.title | Bilinear approximations to the mixed-mode I-II delamination cohesive law using an inverse method | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 361 | pt |
degois.publication.lastPage | 366 | pt |
degois.publication.title | Composite Structures | pt |
degois.publication.volume | 122 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.identifier.doi | 10.1016/j.compstruct.2014.11.058 | pt |
Appears in Collections: | DEM - Artigos |
Files in This Item:
File | Description | Size | Format | |
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paper_coh_law_mixed.pdf | main article | 862.62 kB | Adobe PDF |
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