Process influence on fracture toughness of new generation carbon-epoxy laminates

Matthieu Mulle*, F. Collombet

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper concerns an attempt to manufacture a RTM laminate in such way that its mechanical properties are similar to that of a new generation autoclave processed carbon fiber reinforced plastic. High toughness properties have been achieved for this 3rd generation composite material. This results from the inclusion of thermoplastic phases in the prepreg tapes. To obtain such composite improvement by means of the RTM process, dry carbon fiber layers were prepared with a specific lay up of thermoplastic particles. The present study compares the fracture behavior of both composite materials which may be regarded as quasi equivalent. Before performing mechanical tests, initial stress states are estimated by monitoring the cure processes with embedded optical fiber Bragg gratings. Then, inter laminar shear strength tests and fracture tests in mode I and II are carried out. Results show slightly better overall performances of the RTM manufactured material. However, process parameters need particularly fine adjustments before achieving an acceptable quality of laminate.

Original languageEnglish (US)
Title of host publication12th International Conference on Fracture 2009, ICF-12
Pages1865-1874
Number of pages10
StatePublished - Dec 1 2009
Event12th International Conference on Fracture 2009, ICF-12 - Ottawa, ON, Canada
Duration: Jul 12 2009Jul 17 2009

Publication series

Name12th International Conference on Fracture 2009, ICF-12
Volume3

Other

Other12th International Conference on Fracture 2009, ICF-12
CountryCanada
CityOttawa, ON
Period07/12/0907/17/09

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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