Simultaneous lay-up and in situ cure process for thick composites

Scott R White, C. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A progressive lay-up and in-situ cure process is presented for manufacturing thick polymeric composite structures. Manufacturing cycle times can be reduced significantly, since this process combines the lay-up and curing. Also, the material degradation due to thermal spiking which is generally very large in thick-section composites can be avoided, depending on the judicious selection of process variables such as cure temperature, ambient temperatures, and material supply rate. A one-dimensional combined thermo-chemical heat transfer model was developed and solved numerically in order to monitor the cure, temperature distributions, and thermal spiking through the thickness. In order to validate the analysis, 12 mm thick graphite/epoxy (AS4/3501-6) plates were manufactured by the current process and were scanned by DSC (Differential Scanning Calorimeter). The predicted temperature and degree of cure profiles are compared with experiments. Both results are in good agreement which confirms the accuracy of this cure simulation study. Both graphite/epoxy and glass/polyester systems are investigated in the present paper.

Original languageEnglish (US)
Title of host publicationProceedings of the American Society for Composites
PublisherPubl by Technomic Publ Co Inc
Pages80-89
Number of pages10
ISBN (Print)0877629978
StatePublished - Dec 1 1992
EventProceedings of the 7th Technical Conference of the American Society for Composites - University Park, PA, USA
Duration: Oct 13 1992Oct 15 1992

Publication series

NameProceedings of the American Society for Composites

Other

OtherProceedings of the 7th Technical Conference of the American Society for Composites
CityUniversity Park, PA, USA
Period10/13/9210/15/92

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemical Engineering (miscellaneous)
  • Building and Construction
  • Polymers and Plastics

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