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A comparative study between epoxy and vinyl ester CF-SMC for high volume automotive composite crash structures
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Gupta, Jaipal, Reynolds, Neil, Chiciudean, Teodor and Kendall, Kenneth N. (2020) A comparative study between epoxy and vinyl ester CF-SMC for high volume automotive composite crash structures. Composite Structures, 244 . 112299. doi:10.1016/j.compstruct.2020.112299 ISSN 0263-8223.
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Official URL: http://dx.doi.org/10.1016/j.compstruct.2020.112299
Abstract
Epoxy- and vinyl ester-based carbon fibre reinforced sheet moulding compounds (CF-SMCs) were industrially processed and impact tested to characterise their impact energy absorption performance. Particularly, thin-walled CF-SMC components were manufactured via a high volume compression moulding process, and were subjected to both ~9 m/s and ~13 m/s dynamic impacts with kinetic energies of ~3.3 kJ and ~6.6 kJ respectively. The mass-specific energy absorption (SEA) for epoxy-based CF-SMC ranged from 50 to 60 J/g whereas the SEA for vinyl ester material ranged from 24 to 29 J/g. In addition, the effect of the manufacturing process and the resultant reinforcement architecture on the energy absorption properties was investigated. Epoxy CF-SMC components were manufactured using conventional SMC flow forming and using ‘pre-formed’ near-net shape blanks (low/zero flow condition) and their performance compared. Local microstructure and fractography analyses were conducted for each sample type to explain the observed differences in performance between the individual CF-SMC and manufacturing systems.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group) | ||||||||
| Journal or Publication Title: | Composite Structures | ||||||||
| Publisher: | Elsevier Ltd | ||||||||
| ISSN: | 0263-8223 | ||||||||
| Official Date: | 15 July 2020 | ||||||||
| Dates: |
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| Volume: | 244 | ||||||||
| Article Number: | 112299 | ||||||||
| DOI: | 10.1016/j.compstruct.2020.112299 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access |
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