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

被引：94

作者：

Joerdens, C. ^{[1
]}

Scheller, M. ^{[1
]}

Wietzke, S. ^{[1
]}

Romeike, D. ^{[1
]}

Jansen, C. ^{[1
]}

Zentgraf, T. ^{[2
]}

Wiesauer, K. ^{[3
]}

Reisecker, V. ^{[4
]}

Koch, M. ^{[1
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Hochfrequenztech, D-38106 Braunschweig, Germany

[2] SKZ, D-97076 Wurzburg, Germany

[3] Res Ctr Nondestruct Testing RECENDT GmbH, A-4020 Linz, Austria

[4] Transferctr Kunststofftech TCKT GmbH, A-4600 Wels, Austria

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 03期

关键词：

Reinforced plastics; Glass fibres; Non-destructive testing; TIME-DOMAIN SPECTROSCOPY; COMPOSITES;

D O I：

10.1016/j.compscitech.2009.11.022

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

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, the preferential orientation of the fibres phi and the fraction of orientated fibres a. Our findings agree well with corresponding mold flow simulations performed with commercially available software. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：472 / 477

页数：6

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