Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
An investigation into methods to enhance the interlaminar shear strength of continuous fibre reinforced ceramics
2005 (Engelska)Självständigt arbete på avancerad nivå (yrkesexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
Abstract [en]

This Master Thesis investigates the possibility to implement new innovative textile techniques for the manufacturing of fibre reinforced ceramics with the purpose of enhancing the interlaminar properties. A needling technique is developed that pushes fibre material into and through a laminate, creating a 3-dimensional structure. This results in a stable structure that is suitable as a preform onto which a non-oxide ceramic matrix such as graphite or silicon carbide can be placed using a vapour deposition or vapour infiltration process. By manufacturing specimens made of unidirectional carbon fabrics and an epoxy matrix, the crack initiation and propagation during destructive testing is analysed. The study shows that the failure mechanism for such a needled material is changed during bending loads. This is due to the modification of the fibre structure that creates through the thickness fibres. It is demonstrated that it is possible to increase the energy absorption and the fracture toughness of the needled material. In addition, an electrostatic flocking procedure for creating interlaminar fibres is investigated using electromagnetic field theory combined with numerical analysis. Via theory and conventional techniques a manufacturing procedure for flocked material is developed and shown to display great potential for increasing interlaminar shear strength of any laminated fibre-reinforced material. Finally, the possibility to implement the above techniques into industry and the methods to do so is demonstrated.

Ort, förlag, år, upplaga, sidor
2005.
Nyckelord [en]
Technology, fibre reinforced ceramics
Nyckelord [sv]
Teknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-52375ISRN: LTU-EX--05/278--SELokalt ID: 9810d37b-aeeb-405f-adec-f25fc72d8cd3OAI: oai:DiVA.org:ltu-52375DiVA, id: diva2:1025745
Ämne / kurs
Examensarbete, minst 30 hp
Utbildningsprogram
Civilingenjör, Rymdteknik
Examinatorer
Anmärkning
Validerat; 20101217 (root)Tillgänglig från: 2016-10-04 Skapad: 2016-10-04Bibliografiskt granskad

Open Access i DiVA

fulltext(14556 kB)1144 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 14556 kBChecksumma SHA-512
d5b916dc8b4e167418bab5c0746cb7bdbd5bcbe5da3fd454c5b483ad25382f3da470e7a10fd96c9a0478eb589ab20c5d941785ffdc41abd8dd718bd62771d842
Typ fulltextMimetyp application/pdf

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 1146 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 183 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf