Terahertz spectroscopy to study the orientation of glass fibres in reinforced plastics

C. Jördens; M. Scheller; S. Wietzke; D. Romeike; C. Jansen; T. Zentgraf; K. Wiesauer; V. Reisecker; M. Koch

doi:10.1016/j.compscitech.2009.11.022

Terahertz spectroscopy to study the orientation of glass fibres in reinforced plastics

C. Jördens, M. Scheller, S. Wietzke, D. Romeike, C. Jansen, T. Zentgraf, K. Wiesauer, V. Reisecker, M. Koch

Research output: Contribution to journal › Article › peer-review

108 Scopus citations

Abstract

We employ terahertz time-domain spectroscopy (THz TDS), a novel, non-destructive testing method, to study the fibre orientation and fibre content in reinforced plastics. The birefringent properties of plastics filled with differing amounts of short glass fibres are measured at frequencies from 100 GHz up to 1 THz. To predict the permittivity of the experimentally examined composite materials, we use an effective medium theory first introduced by Polder and van Santen. On the basis of the measured data and this model, we deduce the additive content ξ, the preferential orientation of the fibres φ and the fraction of orientated fibres a. Our findings agree well with corresponding mold flow simulations performed with commercially available software.

Original language	English (US)
Pages (from-to)	472-477
Number of pages	6
Journal	Composites Science and Technology
Volume	70
Issue number	3
DOIs	https://doi.org/10.1016/j.compscitech.2009.11.022
State	Published - Mar 2010
Externally published	Yes

Keywords

A. Glass fibres
D. Non-destructive testing
Reinforced plastics

ASJC Scopus subject areas

Ceramics and Composites
Engineering(all)

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10.1016/j.compscitech.2009.11.022

Cite this

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title = "Terahertz spectroscopy to study the orientation of glass fibres in reinforced plastics",

abstract = "We employ terahertz time-domain spectroscopy (THz TDS), a novel, non-destructive testing method, to study the fibre orientation and fibre content in reinforced plastics. The birefringent properties of plastics filled with differing amounts of short glass fibres are measured at frequencies from 100 GHz up to 1 THz. To predict the permittivity of the experimentally examined composite materials, we use an effective medium theory first introduced by Polder and van Santen. On the basis of the measured data and this model, we deduce the additive content ξ, the preferential orientation of the fibres φ and the fraction of orientated fibres a. Our findings agree well with corresponding mold flow simulations performed with commercially available software.",

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author = "C. J{\"o}rdens and M. Scheller and S. Wietzke and D. Romeike and C. Jansen and T. Zentgraf and K. Wiesauer and V. Reisecker and M. Koch",

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doi = "10.1016/j.compscitech.2009.11.022",

language = "English (US)",

volume = "70",

pages = "472--477",

journal = "Composites Science and Technology",

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TY - JOUR

T1 - Terahertz spectroscopy to study the orientation of glass fibres in reinforced plastics

AU - Jördens, C.

AU - Scheller, M.

AU - Wietzke, S.

AU - Romeike, D.

AU - Jansen, C.

AU - Zentgraf, T.

AU - Wiesauer, K.

AU - Reisecker, V.

AU - Koch, M.

PY - 2010/3

Y1 - 2010/3

N2 - We employ terahertz time-domain spectroscopy (THz TDS), a novel, non-destructive testing method, to study the fibre orientation and fibre content in reinforced plastics. The birefringent properties of plastics filled with differing amounts of short glass fibres are measured at frequencies from 100 GHz up to 1 THz. To predict the permittivity of the experimentally examined composite materials, we use an effective medium theory first introduced by Polder and van Santen. On the basis of the measured data and this model, we deduce the additive content ξ, the preferential orientation of the fibres φ and the fraction of orientated fibres a. Our findings agree well with corresponding mold flow simulations performed with commercially available software.

AB - We employ terahertz time-domain spectroscopy (THz TDS), a novel, non-destructive testing method, to study the fibre orientation and fibre content in reinforced plastics. The birefringent properties of plastics filled with differing amounts of short glass fibres are measured at frequencies from 100 GHz up to 1 THz. To predict the permittivity of the experimentally examined composite materials, we use an effective medium theory first introduced by Polder and van Santen. On the basis of the measured data and this model, we deduce the additive content ξ, the preferential orientation of the fibres φ and the fraction of orientated fibres a. Our findings agree well with corresponding mold flow simulations performed with commercially available software.

KW - A. Glass fibres

KW - D. Non-destructive testing

KW - Reinforced plastics

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U2 - 10.1016/j.compscitech.2009.11.022

DO - 10.1016/j.compscitech.2009.11.022

M3 - Article

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SN - 0266-3538

VL - 70

SP - 472

EP - 477

JO - Composites Science and Technology

JF - Composites Science and Technology

IS - 3

ER -

Terahertz spectroscopy to study the orientation of glass fibres in reinforced plastics

Abstract

Keywords

ASJC Scopus subject areas

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