dc.creator | Sánchez-Carmona, Serafín | es |
dc.creator | Barroso Caro, Alberto | es |
dc.creator | Mantic, Vladislav | es |
dc.creator | Correa Montoto, Elena | es |
dc.creator | París Carballo, Federico | es |
dc.date.accessioned | 2023-02-15T08:26:39Z | |
dc.date.available | 2023-02-15T08:26:39Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | Sánchez-Carmona, S., Barroso, A., Mantic, V., Correa, E. y París, F. (2023). Non-conventional failures caused by the edge effect in cross-ply laminates made of ultra-thin plies. Composites Part B: Engineering, 254, 110576. https://doi.org/10.1016/j.compositesb.2023.110576. | |
dc.identifier.issn | 1359-8368 | es |
dc.identifier.uri | https://hdl.handle.net/11441/142723 | |
dc.description | his is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) | es |
dc.description.abstract | In a fatigue testing programme of carbon/epoxy cross-ply laminates made of ultra-thin plies, non-conventional
failures are observed. These non-conventional failures consist in longitudinal cracks in the 90◦ layer parallel to
the loading direction instead of the conventional transverse cracks in the 90◦ layer perpendicular to the load
direction. A potential reason for this failure is the presence of a normal stress in the thickness direction. Classical
Lamination Theory predicts zero values for this stress component under longitudinal loading, but the presence of
a free-edge alters the stress state. The so-called “edge-effect” has been widely studied in the past, but the presence
of ultra-thin plies introduces new lower limits of the thickness of the 90◦ layer. Additionally, the presence of a
stress singularity, in the bimaterial corner generated by the 0◦ and 90◦ plies, is also investigated to check its
influence on the stress state due to the low thickness values of the 90◦ layer. A slight geometrical modification is
conceived to remove the stress singularity, isolating its effect from the pure edge effect. Numerical simulations of
the stress alteration in the free edge of the samples, due to mechanical and thermal loading, are carried out, and
stress distributions are numerically computed, depending on the 90◦ layer thickness. Detailed failure inspection
by 3D tomography is also done to assess the through-the-width propagation of the non-conventional failures from
the free edge. Numerical predictions and experimental 3D X-ray inspections seem to corroborate that the edge
effect is responsible for these non-conventional failures. | es |
dc.description.sponsorship | Ministerio de Ciencia, Innovación y Universidades, PID2021-126279OB-I00 PID2021-123325OB-I00 | es |
dc.description.sponsorship | Junta de Andalucía, Consejería de Transformación Económica, Industria, Conocimiento y Universidades y Fondo Europeo de Desarrollo Regional P18-FR-1928 P18-FR-3360 | es |
dc.description.sponsorship | Universidad de Sevilla VIPPIT-2018-II.2 | es |
dc.format | application/pdf | es |
dc.format.extent | 10 p. | es |
dc.language.iso | eng | es |
dc.publisher | Elsevier | es |
dc.relation.ispartof | Composites Part B: Engineering, 254, 110576. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Edge-effect | es |
dc.subject | Ultra-thin plies | es |
dc.subject | Longitudinal damage | es |
dc.subject | Stress singularity | es |
dc.subject | Composite materials | es |
dc.title | Non-conventional failures caused by the edge effect in cross-ply laminates made of ultra-thin plies | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Mecánica de Medios Continuos y Teoría de Estructuras | es |
dc.relation.projectID | PID2021-126279OB-I00 | es |
dc.relation.projectID | PID2021-123325OB-I00 | es |
dc.relation.projectID | P18-FR-1928 | es |
dc.relation.projectID | P18-FR-3360 | es |
dc.relation.projectID | VIPPIT-2018-II.2 | es |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S1359836823000793 | es |
dc.identifier.doi | 10.1016/j.compositesb.2023.110576 | es |
dc.contributor.group | Universidad de Sevilla. TEP131: Elasticidad y Resistencia de Materiales | es |
dc.journaltitle | Composites Part B: Engineering | es |
dc.publication.volumen | 254 | es |
dc.publication.initialPage | 110576 | es |
dc.contributor.funder | Ministerio de Ciencia, Innovación y Universidades (MICINN). España | es |
dc.contributor.funder | Junta de Andalucía. Consejería de Transformación Económica, Industria, Conocimiento y Universidades | es |
dc.contributor.funder | Fondo Europeo de Desarrollo Regional | es |
dc.contributor.funder | Universidad de Sevilla | es |