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  4. Kinematic and mechanical response of dry woven fabrics in through-thickness compression: Virtual fiber modeling with mesh overlay technique and experimental validation
 
research article

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  
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May 3, 2021
Composites Science and Technology

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 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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Type
research article
DOI
10.1016/j.compscitech.2021.108706
Author(s)
Daelemans, Lode
Tomme, Brecht
Caglar, Baris  
Michaud, Véronique  
Van Stappen, Jeroen
Cnudde, Veerle
Boone, Matthieu
Van Paepegem, Wim
Date Issued

2021-05-03

Published in
Composites Science and Technology
Volume

207

Article Number

108706

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPAC  
Available on Infoscience
March 2, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/175619
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