TY - GEN
T1 - Single fibre characterisation of curved fibres within a thermoplastic matrix using X-ray tomography
AU - Salaberger, Dietmar
AU - Jerabek, Michael
AU - Hannesschläger, Christian
AU - Kastner, Johann
N1 - Publisher Copyright:
© 2016, European Conference on Composite Materials, ECCM. All rights reserved.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2016
Y1 - 2016
N2 - Quantitative values are necessary for modelling mechanical properties. For fibre reinforced polymers, fibre orientation, fibre length, fibre fraction and fibre shape are important features. X-ray computed tomography (CT) was used to determine these features for special types of fibres. Long glass fibres, Cellulose fibres and polymer fibres were analysed. They exhibit the feature of bending. Single fibre characterisation methods that were developed for straight fibres were extended in order to achieve accurate quantitative results also for bent fibres. The qualitative analysis of CT data showed principle differences between glass and Cellulose/polymer fibres. While glass fibres have smooth surface and tend to be straight, Cellulose and polymer fibres have rough surface and bend severely. The cross section of glass fibres is circular and of Cellulose and polymer fibres elliptical. This ribbon like structure is often twisted along the fibre axis. Quantitate features for modelling were extracted by applying a Poly Inclusion model. The length was determined by summing up intermediate Euclidian distances. This work shows the possibilities of quantitative single fibre characterization for bent fibres by means of CT. The optimizations lead to applicability for modelling mechanical and physical properties of this type of composites.
AB - Quantitative values are necessary for modelling mechanical properties. For fibre reinforced polymers, fibre orientation, fibre length, fibre fraction and fibre shape are important features. X-ray computed tomography (CT) was used to determine these features for special types of fibres. Long glass fibres, Cellulose fibres and polymer fibres were analysed. They exhibit the feature of bending. Single fibre characterisation methods that were developed for straight fibres were extended in order to achieve accurate quantitative results also for bent fibres. The qualitative analysis of CT data showed principle differences between glass and Cellulose/polymer fibres. While glass fibres have smooth surface and tend to be straight, Cellulose and polymer fibres have rough surface and bend severely. The cross section of glass fibres is circular and of Cellulose and polymer fibres elliptical. This ribbon like structure is often twisted along the fibre axis. Quantitate features for modelling were extracted by applying a Poly Inclusion model. The length was determined by summing up intermediate Euclidian distances. This work shows the possibilities of quantitative single fibre characterization for bent fibres by means of CT. The optimizations lead to applicability for modelling mechanical and physical properties of this type of composites.
KW - Fibre characterization
KW - Fibre reinforced thermoplastics
KW - Injection moulding
KW - Modelling
KW - X-ray computed tomography
UR - http://www.scopus.com/inward/record.url?scp=85018577283&partnerID=8YFLogxK
M3 - Conference contribution
T3 - ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
BT - ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
PB - European Conference on Composite Materials, ECCM
T2 - 17th European Conference on Composite Materials, ECCM 2016
Y2 - 26 June 2016 through 30 June 2016
ER -