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The effects of voids in quasi-static indentation of resin-infused reinforced polymers

The effects of voids in quasi-static indentation of resin-infused reinforced polymers
The effects of voids in quasi-static indentation of resin-infused reinforced polymers
The focus of this study is the influence of voids on the damage behaviour in quasi-static loading of resin infused carbon fibre reinforced polymers. Experimental results are presented for quasi-static loading in combination with high resolution tomographic imaging and statistical analysis (homology of pores or voids and induced cracks). Three distinct mechanisms were observed to control delamination growth in the presence of sharp and blunt voids. Delamination cracks interact with the supporting yarns, especially in combination with air pockets trapped in the resin in the form of long, sharp voids. This resulted in crack growth that coalesces with delamination cracks from neighbouring yarn-voids during increased out-of-plane load-displacement, with almost no presence of intralaminar transverse cracks. This highlights the benefits and drawbacks of the supporting yarn during out-of-plane loading.
Resin transfer moulding, CT analysis, Damage mechanics
0021-9983
Sisodia, S.M.
237a7612-972b-4aa5-a8fb-deaa8ee9baac
Bull, Daniel
3569ba02-89de-4398-a14d-02c3f9b4eab2
George, A.R.
29c7a68c-ceb4-4f93-ba87-5e25b7b690d2
Gamstedt, E.K.
9801f69e-30d0-4570-a751-edb5514545e6
Mavrogordato, Mark
f3e0879b-118a-463a-a130-1c890e9ab547
Fullwood, D.T.
33288ba8-e4be-4517-b2ab-61ac1ef347c4
Spearing, Mark
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a
Sisodia, S.M.
237a7612-972b-4aa5-a8fb-deaa8ee9baac
Bull, Daniel
3569ba02-89de-4398-a14d-02c3f9b4eab2
George, A.R.
29c7a68c-ceb4-4f93-ba87-5e25b7b690d2
Gamstedt, E.K.
9801f69e-30d0-4570-a751-edb5514545e6
Mavrogordato, Mark
f3e0879b-118a-463a-a130-1c890e9ab547
Fullwood, D.T.
33288ba8-e4be-4517-b2ab-61ac1ef347c4
Spearing, Mark
9e56a7b3-e0e8-47b1-a6b4-db676ed3c17a

Sisodia, S.M., Bull, Daniel, George, A.R., Gamstedt, E.K., Mavrogordato, Mark, Fullwood, D.T. and Spearing, Mark (2019) The effects of voids in quasi-static indentation of resin-infused reinforced polymers. Journal of Composite Materials. (doi:10.1177/0021998319858024).

Record type: Article

Abstract

The focus of this study is the influence of voids on the damage behaviour in quasi-static loading of resin infused carbon fibre reinforced polymers. Experimental results are presented for quasi-static loading in combination with high resolution tomographic imaging and statistical analysis (homology of pores or voids and induced cracks). Three distinct mechanisms were observed to control delamination growth in the presence of sharp and blunt voids. Delamination cracks interact with the supporting yarns, especially in combination with air pockets trapped in the resin in the form of long, sharp voids. This resulted in crack growth that coalesces with delamination cracks from neighbouring yarn-voids during increased out-of-plane load-displacement, with almost no presence of intralaminar transverse cracks. This highlights the benefits and drawbacks of the supporting yarn during out-of-plane loading.

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JCM_Sisodia_final - Accepted Manuscript
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More information

e-pub ahead of print date: 25 June 2019
Keywords: Resin transfer moulding, CT analysis, Damage mechanics

Identifiers

Local EPrints ID: 432469
URI: http://eprints.soton.ac.uk/id/eprint/432469
ISSN: 0021-9983
PURE UUID: 49b645ae-502f-4bc3-85d6-c847c3c0efc7
ORCID for Daniel Bull: ORCID iD orcid.org/0000-0001-6711-6153
ORCID for Mark Spearing: ORCID iD orcid.org/0000-0002-3059-2014

Catalogue record

Date deposited: 16 Jul 2019 16:33
Last modified: 07 Aug 2019 00:43

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