Effect of Resin Bleed Out on Compaction Behavior of the Fiber Tow Gap Region during Automated Fiber Placement Manufacturing

Jamora, Von Clyde; Rauch, Virginia; Kravchenko, Sergii G.; Kravchenko, Oleksandr G.

doi:10.3390/polym16010031

Open AccessArticle

Effect of Resin Bleed Out on Compaction Behavior of the Fiber Tow Gap Region during Automated Fiber Placement Manufacturing

¹

Department of Aerospace and Mechanical Engineering, Old Dominion University, Norfolk, VA 23529, USA

²

Department of Materials Engineering, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada

^*

Author to whom correspondence should be addressed.

Polymers 2024, 16(1), 31; https://doi.org/10.3390/polym16010031

Submission received: 11 November 2023 / Revised: 1 December 2023 / Accepted: 7 December 2023 / Published: 21 December 2023

(This article belongs to the Special Issue Polymer Composites: Structure, Properties and Processing)

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Abstract

Automated fiber placement is a state-of-the-art manufacturing method which allows for precise control over layup design. However, AFP results in irregular morphology due to fiber tow deposition induced features such as tow gaps and overlaps. Factors such as the squeeze flow and resin bleed out, combined with large non-linear deformation, lead to morphological variability. To understand these complex interacting phenomena, a coupled multiphysics finite element framework was developed to simulate the compaction behavior around fiber tow gap regions, which consists of coupled chemo-rheological and flow-compaction analysis. The compaction analysis incorporated a visco-hyperelastic constitutive model with anisotropic tensorial prepreg viscosity, which depends on the resin degree of cure and local fiber orientation and volume fraction. The proposed methodology was validated using the compaction of unidirectional tows and layup with a fiber tow gap. The proposed approach considered the effect of resin bleed out into the gap region, leading to the formation of a resin-rich pocket with a complex non-uniform morphology.

Keywords: process modeling; compaction; finite element analysis; automated fiber placement

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MDPI and ACS Style

Jamora, V.C.; Rauch, V.; Kravchenko, S.G.; Kravchenko, O.G. Effect of Resin Bleed Out on Compaction Behavior of the Fiber Tow Gap Region during Automated Fiber Placement Manufacturing. Polymers 2024, 16, 31. https://doi.org/10.3390/polym16010031

AMA Style

Jamora VC, Rauch V, Kravchenko SG, Kravchenko OG. Effect of Resin Bleed Out on Compaction Behavior of the Fiber Tow Gap Region during Automated Fiber Placement Manufacturing. Polymers. 2024; 16(1):31. https://doi.org/10.3390/polym16010031

Chicago/Turabian Style

Jamora, Von Clyde, Virginia Rauch, Sergii G. Kravchenko, and Oleksandr G. Kravchenko. 2024. "Effect of Resin Bleed Out on Compaction Behavior of the Fiber Tow Gap Region during Automated Fiber Placement Manufacturing" Polymers 16, no. 1: 31. https://doi.org/10.3390/polym16010031

APA Style

Jamora, V. C., Rauch, V., Kravchenko, S. G., & Kravchenko, O. G. (2024). Effect of Resin Bleed Out on Compaction Behavior of the Fiber Tow Gap Region during Automated Fiber Placement Manufacturing. Polymers, 16(1), 31. https://doi.org/10.3390/polym16010031

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Effect of Resin Bleed Out on Compaction Behavior of the Fiber Tow Gap Region during Automated Fiber Placement Manufacturing

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