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Title: Interlocked thin-ply reinforcements for improved fracture toughness and compression after impact

Type Dataset Pascoe, John-Alan, Pimenta, Soraia, Pinho, Silvestre Taveira (2018): Interlocked thin-ply reinforcements for improved fracture toughness and compression after impact. Zenodo. Dataset. https://zenodo.org/record/1476887

Authors: Pascoe, John-Alan (Imperial College London) ; Pimenta, Soraia (Imperial College London) ; Pinho, Silvestre Taveira (Imperial College London) ;

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Summary

This dataset contains data showing the effect of interlocked thin-ply reinforcement units on the fracture toughness and compression after impact strength of CFRP laminates. For both the fracture toughness and the CAI experiments, tests were conducted on non-reinforced baseline specimens, as well as reinforced specimens. These experiments were conducted to test a reinforcement concept,  consisting of creating reinforcement units by interlocking two thin-ply prepreg layers with a tab-and-slit geometry. These reinforcement units are then inserted between the plies of a regular composite lay-up.

This reinforcement concept was first presented at the 18th European Conference on Composite Materials (2018, Athens, Greece). More information on the concept can be found at: http://wwwf.imperial.ac.uk/aeronautics/research/pinholab/interlock-tabs/. 

The fracture toughness section of this dataset contains both mode I and mode II data. The mode I data was acquired using DCB specimens, and the mode II data was obtained from 4-point end notch flexure tests. Force, displacement, crack length, and strain energy release rate during the test are provided for all specimens.

The CAI section of the dataset contains post-impact C-scans, as well as force, displacement, and strain gauge data from the subsequent compression tests.

 

More information

  • DOI: 10.5281/zenodo.1476887
  • Language: en

Subjects

  • Fracture toughness, Compression after impact, CFRP, Mode I, Mode II, Thin-ply, Interlaminar reinforcement, Damage tolerance, Ply-level structures

Dates

  • Publication date: 2018
  • Issued: November 02, 2018

Notes

Other: The authors are grateful for the funding received from the EPSRC under grant number EP/M002500/1. S. Pimenta acknowledges the royal Academy of Engineering for her Research Fellowship on "Multiscale discontinuous composites for large scale and sustainable structural applications" (2015-2019).

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electronic resource

Relateditems

DescriptionItem typeRelationshipUri
IsSupplementTohttp://wwwf.imperial.ac.uk/aeronautics/research/pinholab/interlock-tabs/
IsSupplementedByhttps://doi.org/10.5281/zenodo.2677939
IsSupplementTohttps://doi.org/10.1016/j.compscitech.2019.107681
IsVersionOfhttps://doi.org/10.5281/zenodo.1476886
IsPartOfhttps://zenodo.org/communities/zenodo