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Article

Experimental and Numerical Study of Vacuum Resin Infusion for Thin-Walled Composite Parts

1
Aircraft Engineering Department, FRC the Southern Scientific Centre of Russian Academy of Science, Rostov-on-Don 344006, Russia
2
Institute of Polymer Engineering, The University of Applied Sciences Northwestern Switzerland FHNW, 5210 Windisch, Switzerland
3
Microelectronic Department, the National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
4
Chen-Wei International Co., Ltd., Taichung City 407, Taiwan
5
Institute of Mechanics and Applied Mathematics, Southern Federal University, Rostov-on-Don 344006, Russia
6
Aircraft Engineering Department, Don State Technical University, Rostov-on-Don 344000, Russia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(4), 1485; https://doi.org/10.3390/app10041485
Received: 31 January 2020 / Revised: 19 February 2020 / Accepted: 19 February 2020 / Published: 21 February 2020
(This article belongs to the Special Issue Physics and Mechanics of New Materials and Their Applications 2019)
This paper considers a new approach to the modeling of the vacuum infusion process at the manufacturing of three-dimensional composite parts of complex shape. The developed approach and numerical methods focus on reliable prediction with needed accuracy and elimination of the unrecoverable defect of composite structure such as the dry spots. The paper presents some experimental results, which demonstrate two cases of dry spot formation in large aircraft composite panels, and analyzes the reasons for these defects arising. Our numerical technique is based on the vacuum infusion of the liquid resin into porous preform as the two-phase flow, which is described by the phase field equation coupled with the Richards equation describing the fluid motion in unsaturated soils with spatially varied pressure dependent porosity and saturation. This problem statement allowed correctly reconstructing the resin front motion and formation of inner and outer dry spots depending on its movement. For the rapid detection of preform zones that are suspicious for defect formation, two indicators calculated during process simulation are proposed and tested at the numerical experiments. The auxiliary program tool has been developed in the MATLAB environment to correctly detect the times of formation, localization and dimensions of the arising dry spots by using the results of the finite element model simulation. View Full-Text
Keywords: polymeric composites; composite technology; vacuum infusion; process modeling and optimization polymeric composites; composite technology; vacuum infusion; process modeling and optimization
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MDPI and ACS Style

Shevtsov, S.; Zhilyaev, I.; Chang, S.-H.; Wu, J.-K.; Huang, J.-P.; Snezhina, N. Experimental and Numerical Study of Vacuum Resin Infusion for Thin-Walled Composite Parts. Appl. Sci. 2020, 10, 1485. https://doi.org/10.3390/app10041485

AMA Style

Shevtsov S, Zhilyaev I, Chang S-H, Wu J-K, Huang J-P, Snezhina N. Experimental and Numerical Study of Vacuum Resin Infusion for Thin-Walled Composite Parts. Applied Sciences. 2020; 10(4):1485. https://doi.org/10.3390/app10041485

Chicago/Turabian Style

Shevtsov, Sergey; Zhilyaev, Igor; Chang, Shun-Hsyung; Wu, Jiing-Kae; Huang, Jyun-Ping; Snezhina, Natalia. 2020. "Experimental and Numerical Study of Vacuum Resin Infusion for Thin-Walled Composite Parts" Appl. Sci. 10, no. 4: 1485. https://doi.org/10.3390/app10041485

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