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© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Detailed knowledge of the local fiber orientation and the local fiber volume content within composite parts provides an opportunity to predict the structural behavior more reliably. Utilizing forming simulation methods of dry or pre-impregnated fabrics allows for predicting the local fiber orientation. Additionally, during the forming process, so-called draping effects like waviness, gapping or shear-induced transverse compression change the local fiber volume content. To reproduce and investigate such draping effects, different manufacturing tools have been developed in this work. The tools are used to create fabric samples with pre-defined deformation states, representing the different draping effects. The samples are evaluated regarding the resulting fiber volume content. The experimental results are compared with the predictions of an analytical solution and of a numerical solution based on draping simulation results. Furthermore, the interaction of the draping effects at arbitrary strain states is discussed regarding the resulting fiber volume content.

Details

Title
Experimental and Numerical Determination of the Local Fiber Volume Content of Unidirectional Non-Crimp Fabrics with Forming Effects
Author
Galkin, Siegfried 1   VIAFID ORCID Logo  ; Kunze, Eckart 2   VIAFID ORCID Logo  ; Kärger, Luise 1 ; Böhm, Robert 2 ; Gude, Maik 2 

 Karlsruhe Institute of Technology (KIT), Institute of Vehicle System Technology, Lightweight Technology (LBT), Rintheimer Querallee 2, D-76131 Karlsruhe, Germany 
 Institute of Lightweight Engineering and Polymer Technology, Technical University Dresden, D-01307 Dresden, Germany 
First page
19
Publication year
2019
Publication date
2019
Publisher
MDPI AG
e-ISSN
2504477X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2548553511
Copyright
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.