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A 3D tomographic investigation to elucidate the low-velocity impact resistance, tolerance and damage sequence of thin non-crimp fabric laminates: effect of ply-thickness

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http://hdl.handle.net/10256/17769

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Títol:: A 3D tomographic investigation to elucidate the low-velocity impact resistance, tolerance and damage sequence of thin non-crimp fabric laminates: effect of ply-thickness
Matèria:: Resistència de materials; Strength of materials; Capes fines; Thin films
Descripció:: While thin-plies delay the onset of matrix cracking and improve certain in-plane mechanical properties, the effect they have on the out-of-plane response remains unclear. We compared the impact resistance, tolerance and sequence of failure events of thin laminates manufactured with thin- or standard-ply non-crimp fabrics (fibre areal weight of 67 and 134 gsm per ply). Damage initiation and propagation was detailed using (a) quasi-static indentation and impact tests at incremental energy levels and (b) X-ray tomography. The analysis revealed the damage mechanisms underlying the observed load drops in the force-displacement curves. In the indented specimens, the 3D post-process ascribed matrix cracks and delaminations to their corresponding plies/interfaces. Standard-ply samples develop more extended delaminations and delay fibre failure, improving the load-carrying capacity and increasing compression after impact (CAI) strength by 27% for impact at 14 J; The authors thank Chomarat (Le Cheylard, France) for manufacturing the materials used in this study. They would also like to acknowledge the support from the FEDER-UE and the Spanish government through the Ministerio de Economía y Competitividad, contract MAT2015-69491-C3-1-R. The first author is particularly grateful for the support received from the Secretaria d’Universitats i Recerca del Departament d’Empresa i Coneixement de la Generalitat de Catalunya through the pre-doctoral grant 2016FI_B_00551, co-funded by the Fondo Social Europeo (FSE)
Font:: © Composites Part A: Applied Science and Manufacturing, 2018, vol. 113, p. 53-65; Articles publicats (D-F)
Idioma:: English
Relació:: info:eu-repo/semantics/altIdentifier/doi/10.1016/j.compositesa.2018.07.013; info:eu-repo/semantics/altIdentifier/issn/1359-835X; info:eu-repo/grantAgreement/MINECO//MAT2015-69491-C3-1-R/ES/HIBRIDACION LOCAL DE MATERIALES COMPUESTOS LAMINADOS PARA MEJORAR SU TOLERANCIA AL DAÑO/
Autor/Productor:: García Rodríguez, Santiago; Costa i Balanzat, Josep; Bardera i Reig, Antoni; Singery, Vicky; Trias Mansilla, Daniel
Editor:: Elsevier
Altres col·laboradors/productors:: Ministerio de Economía y Competitividad (Espanya)
Drets:: Tots els drets reservats; info:eu-repo/semantics/openAccess
Data:: info:eu-repo/date/embargoEnd/2020-10-01; 2018-10-01
Tipus de recurs:: info:eu-repo/semantics/article; info:eu-repo/semantics/submittedVersion
Format:: application/pdf

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2. < dc:creator > García Rodríguez, Santiago </ dc:creator >
3. < dc:creator > Costa i Balanzat, Josep </ dc:creator >
4. < dc:creator > Bardera i Reig, Antoni </ dc:creator >
5. < dc:creator > Singery, Vicky </ dc:creator >
6. < dc:creator > Trias Mansilla, Daniel </ dc:creator >
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8. < dc:subject > Resistència de materials </ dc:subject >
9. < dc:subject > Strength of materials </ dc:subject >
10. < dc:subject > Capes fines </ dc:subject >
11. < dc:subject > Thin films </ dc:subject >
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1. < title > A 3D tomographic investigation to elucidate the low-velocity impact resistance, tolerance and damage sequence of thin non-crimp fabric laminates: effect of ply-thickness </ title >
2. < creator > García Rodríguez, Santiago </ creator >
3. < creator > Costa i Balanzat, Josep </ creator >
4. < creator > Bardera i Reig, Antoni </ creator >
5. < creator > Singery, Vicky </ creator >
6. < creator > Trias Mansilla, Daniel </ creator >
7. < contributor > Ministerio de Economía y Competitividad (Espanya) </ contributor >
8. < subject > Resistència de materials </ subject >
9. < subject > Strength of materials </ subject >
10. < subject > Capes fines </ subject >
11. < subject > Thin films </ subject >
12. < description > While thin-plies delay the onset of matrix cracking and improve certain in-plane mechanical properties, the effect they have on the out-of-plane response remains unclear. We compared the impact resistance, tolerance and sequence of failure events of thin laminates manufactured with thin- or standard-ply non-crimp fabrics (fibre areal weight of 67 and 134 gsm per ply). Damage initiation and propagation was detailed using (a) quasi-static indentation and impact tests at incremental energy levels and (b) X-ray tomography. The analysis revealed the damage mechanisms underlying the observed load drops in the force-displacement curves. In the indented specimens, the 3D post-process ascribed matrix cracks and delaminations to their corresponding plies/interfaces. Standard-ply samples develop more extended delaminations and delay fibre failure, improving the load-carrying capacity and increasing compression after impact (CAI) strength by 27% for impact at 14 J </ description >
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10. < dc:subject > Capes fines </ dc:subject >
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12. < dcterms:abstract > While thin-plies delay the onset of matrix cracking and improve certain in-plane mechanical properties, the effect they have on the out-of-plane response remains unclear. We compared the impact resistance, tolerance and sequence of failure events of thin laminates manufactured with thin- or standard-ply non-crimp fabrics (fibre areal weight of 67 and 134 gsm per ply). Damage initiation and propagation was detailed using (a) quasi-static indentation and impact tests at incremental energy levels and (b) X-ray tomography. The analysis revealed the damage mechanisms underlying the observed load drops in the force-displacement curves. In the indented specimens, the 3D post-process ascribed matrix cracks and delaminations to their corresponding plies/interfaces. Standard-ply samples develop more extended delaminations and delay fibre failure, improving the load-carrying capacity and increasing compression after impact (CAI) strength by 27% for impact at 14 J </ dcterms:abstract >
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  </ element >
</ metadata >

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