Kinematic and mechanical response of dry woven fabrics in through-thickness compression: Virtual fiber modeling with mesh overlay technique and experimental validation
Daelemans, Lode; Tomme, Brecht; Caglar, Baris; Michaud, Véronique; Van Stappen, Jeroen; Cnudde, Veerle; Boone, Matthieu; Van Paepegem, Wim
(2021) Composites Science and Technology, volume 207, pp. 1 - 12
(Article)
Abstract
The through-thickness compressive behavior of fabric reinforcements is crucial in liquid composite molding manufacturing processes. Predictive simulations of the compressive response are thus necessary to enable a virtual processing workflow. These are complex however, as the compressive behavior of the reinforcement fabrics is non-linear. Altough virtual fiber modeling has proven
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to be a strong kinematical tool, it cannot predict the compressive response due to the lack of bending stiffness in the virtual fibers. Here, we describe a solution that enables predictive compressive simulations through hybrid virtual fibers. It is based on an overlay mesh-element technique, combining both (i) finite elements that determine the in-plane fiber properties as well as (ii) finite elements that determine out-of-plane fiber bending. Using these hybrid virtual fibers, the through-thickness compression of a twill woven fabric ply is simulated and experimentally validated using both μCT-based as compliance-based measurements. Excellent agreement between simulation and experiment is obtained for the right set of input parameters.
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Keywords: A. Fabrics/textiles, B. Mechanical properties, C. Finite element analysis (FEA), D. X-ray computed tomography, Digital element analysis, Taverne, Ceramics and Composites, General Engineering
ISSN: 0266-3538
Publisher: Elsevier BV
Note: Funding Information: Financial support from Research Foundation ? Flanders (FWO, Belgium) is gratefully acknowledged. Results in this paper were obtained within the framework of the FWO grant 12 ZR520N. For the CT5000 load cell, FCWO ? UGent (Belgium), as well as FWO is acknowledged under the project G.0041.15N. The Centre of Expertise UGCT is supported by the Ghent University Special Research Fund (BOF.EXP.2017.0007, Belgium). We acknowledge the Swiss Competence Center for Energy Research (SCCER, Switzerland), Mobility of the Swiss Innovation Agency (Innosuisse, Switzerland) and the Swiss National Science Foundation (SNF - 182669, Switzerland) for financial support. Funding Information: Financial support from Research Foundation – Flanders (FWO, Belgium) is gratefully acknowledged. Results in this paper were obtained within the framework of the FWO grant 12 ZR520N . For the CT5000 load cell, FCWO – UGent (Belgium), as well as FWO is acknowledged under the project G.0041.15N. The Centre of Expertise UGCT is supported by the Ghent University Special Research Fund ( BOF.EXP.2017.0007, Belgium ). We acknowledge the Swiss Competence Center for Energy Research (SCCER, Switzerland), Mobility of the Swiss Innovation Agency (Innosuisse, Switzerland) and the Swiss National Science Foundation ( SNF - 182669, Switzerland ) for financial support. Publisher Copyright: © 2021 Elsevier Ltd
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