Application of the Abaqus *Fabric Model to Approximate the Draping Behavior of UD Prepregs Based on Suited Mechanical Characterization

The increasing demand for automated manufacturing processes for carbon fiber-reinforced polymers necessitates accurate forming simulations. For that purpose, the multi-purpose finite element solver Abaqus provides the phenomenological *Fabric material model. While it is designed for woven materials,...

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Main Authors: Joachim Osterberger, Franz Maier, Roland M. Hinterhölzl
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-05-01
Series:Frontiers in Materials
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmats.2022.865477/full
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author Joachim Osterberger
Franz Maier
Roland M. Hinterhölzl
author_facet Joachim Osterberger
Franz Maier
Roland M. Hinterhölzl
author_sort Joachim Osterberger
collection DOAJ
description The increasing demand for automated manufacturing processes for carbon fiber-reinforced polymers necessitates accurate forming simulations. For that purpose, the multi-purpose finite element solver Abaqus provides the phenomenological *Fabric material model. While it is designed for woven materials, both structural directions and shear properties can be independently adjusted. We aim to quantify its applicability to model forming of UD semi-finished prepregs in a diaphragm forming station. We describe the material characterization and modeling and compare the simulation results to experiments using accurate laser scans of manufactured parts. Various simulation aspects are methodically altered to better gauge their impact on the simulated forming result. An accurate calibration of the bending behavior was found to be most important for the forming results. This is realized in the *Fabric material model by softening the compressive stiffness and the limitations of this workaround must be investigated in more detail. Other aspects, like rate-dependent modeling of the transverse direction and anisotropic properties for friction should be considered. Overall, a good agreement with experimental results including regions with fiber bridging or the formation of folds and the contour of the part could be achieved.
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spelling doaj.art-f8dfffb29d8f4e8387f88482d4bb28142022-12-22T02:37:41ZengFrontiers Media S.A.Frontiers in Materials2296-80162022-05-01910.3389/fmats.2022.865477865477Application of the Abaqus *Fabric Model to Approximate the Draping Behavior of UD Prepregs Based on Suited Mechanical CharacterizationJoachim OsterbergerFranz MaierRoland M. HinterhölzlThe increasing demand for automated manufacturing processes for carbon fiber-reinforced polymers necessitates accurate forming simulations. For that purpose, the multi-purpose finite element solver Abaqus provides the phenomenological *Fabric material model. While it is designed for woven materials, both structural directions and shear properties can be independently adjusted. We aim to quantify its applicability to model forming of UD semi-finished prepregs in a diaphragm forming station. We describe the material characterization and modeling and compare the simulation results to experiments using accurate laser scans of manufactured parts. Various simulation aspects are methodically altered to better gauge their impact on the simulated forming result. An accurate calibration of the bending behavior was found to be most important for the forming results. This is realized in the *Fabric material model by softening the compressive stiffness and the limitations of this workaround must be investigated in more detail. Other aspects, like rate-dependent modeling of the transverse direction and anisotropic properties for friction should be considered. Overall, a good agreement with experimental results including regions with fiber bridging or the formation of folds and the contour of the part could be achieved.https://www.frontiersin.org/articles/10.3389/fmats.2022.865477/fulldraping simulationuncured prepregmechanical testingdiaphragm formingfabric
spellingShingle Joachim Osterberger
Franz Maier
Roland M. Hinterhölzl
Application of the Abaqus *Fabric Model to Approximate the Draping Behavior of UD Prepregs Based on Suited Mechanical Characterization
Frontiers in Materials
draping simulation
uncured prepreg
mechanical testing
diaphragm forming
fabric
title Application of the Abaqus *Fabric Model to Approximate the Draping Behavior of UD Prepregs Based on Suited Mechanical Characterization
title_full Application of the Abaqus *Fabric Model to Approximate the Draping Behavior of UD Prepregs Based on Suited Mechanical Characterization
title_fullStr Application of the Abaqus *Fabric Model to Approximate the Draping Behavior of UD Prepregs Based on Suited Mechanical Characterization
title_full_unstemmed Application of the Abaqus *Fabric Model to Approximate the Draping Behavior of UD Prepregs Based on Suited Mechanical Characterization
title_short Application of the Abaqus *Fabric Model to Approximate the Draping Behavior of UD Prepregs Based on Suited Mechanical Characterization
title_sort application of the abaqus fabric model to approximate the draping behavior of ud prepregs based on suited mechanical characterization
topic draping simulation
uncured prepreg
mechanical testing
diaphragm forming
fabric
url https://www.frontiersin.org/articles/10.3389/fmats.2022.865477/full
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AT franzmaier applicationoftheabaqusfabricmodeltoapproximatethedrapingbehaviorofudprepregsbasedonsuitedmechanicalcharacterization
AT rolandmhinterholzl applicationoftheabaqusfabricmodeltoapproximatethedrapingbehaviorofudprepregsbasedonsuitedmechanicalcharacterization