Three‐dimensional flow simulation of resin transfer molding utilizing multilayered fiber preform

Lee, Seung Hwan; Yang, Mei; Song, Young Seok; Kim, Seong Yun; Youn, Jae Ryoun

doi:10.1002/app.30698

Cited by 12 publications

(6 citation statements)

References 37 publications

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“…This process involves injecting the resin into the mold which has been prelaid with fiber then resin cures after injection. For its low cost and good quality products, it has been widely used in automobile manufacturing, aerospace, and so on …”

Section: Introductionmentioning

confidence: 99%

Nonisothermal simulation on pressure during resin transfer molding

Yang

Xiang

et al. 2019

J of Applied Polymer Sci

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High speed injection has been widely used in resin transfer molding (RTM), which improves manufacturing efficiency. This sometimes leads to excessive pressure within the mold, resulting in fiber destruction and mold deformation. Heating the mold and injection resin reduces the viscosity of resin, leading to influence on mold internal pressure. Selection of optimal mold and injection temperature for effective reduction of mold internal pressure has become a source of concern in the polymer industry. This article presents an outlook relationship between mold temperature, injection temperature, and mold internal pressure. It also showcases a temperature selection method angle to addressing this issue. The “FLUENT” software has been secondarily developed that gives an insight in using the three‐dimensional nonisothermal RTM simulation. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47492.

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Section: Introductionmentioning

confidence: 99%

Nonisothermal simulation on pressure during resin transfer molding

Yang

Xiang

et al. 2019

J of Applied Polymer Sci

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“…As shown in Figure , this process mainly includes the following steps: (1) laying the fibers into the mold; (2) closing the mold and the injecting resin; (3) curing reaction after resin injection; and (4) opening mold after resin curing reaction and taking out the product. As it is of low cost, contains good quality products, and is pollution free, it has been widely used in shipbuilding, automobile manufacturing, aerospace, and other fields …”

Section: Introductionmentioning

confidence: 99%

Optimization method to select temperature based on chemorheological and exothermal reaction of RTM

Yang

Liu

2019

J of Applied Polymer Sci

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Heating mold and resin have been widely used in resin transfer molding (RTM) to improve injection and manufacturing efficiency. The unreasonable mold/resin temperatures sometimes lead to excessive viscosity of resin and premature curing, which will result in failure of the filling process. Selection of optimal mold and resin temperature has become a source of concern in the polymer industry. This article presents an optimization method to select mold and injection resin temperatures by using numerical simulation based on chemorheological and exothermal reaction of the RTM process. The results show that the optimization method has high computational efficiency for three-dimensional parts with different shapes. The selected mold/resin temperature ensures the smooth filling process, which provides a powerful tool for parameter design in polymer industry.

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“…Recently, many researchers have studied the resin infiltration stage during RTM processes, mainly investigating on the influence of processing conditions on composite material properties . In addition, Tamma et al introduced the sensitivity analysis method to compare the sensitive degree of resin filling process to the different parameters .…”

Section: Introductionmentioning

confidence: 99%

Sensitivity analysis on resin transfer molding processes with edge effect and curing reaction characteristics

Ding

Jia

2014

Polym. Compos.

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The mold filling time and resin flow front shape are of fundamental importance during resin transfer molding (RTM) processes, because the former influences productivity and the latter affects composites quality. In this article, considering both edge effect and curing reaction characteristics of the resin flow process, the sensitivity analysis method is introduced to investigate the sensitive degree of mold filling time and resin flow front shape to the key material and processing parameters. The function employed to describe the resin flow front shape is defined, and the mathematical relationships of the key physical parameters, such as fluid pressure sensitivity, flow velocity sensitivity, mold filling time sensitivity, and resin flow front shape sensitivity, are established simultaneously. In addition, then the resin infiltration process is simulated by means of a semi‐implicit iterative calculation method and the finite volume method. The simulated results are in agreement with the analytical ones. The results show that under constant injection velocity conditions, both the change in the resin temperature and the alteration of the inlet velocity hardly affect the resin flow front shape, whereas the influence of edge permeability on the resin flow front shape is the greatest. This study is helpful for designing and optimizing RTM processes. POLYM. COMPOS., 36:2008–2016, 2015. © 2014 Society of Plastics Engineer

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Three‐dimensional flow simulation of resin transfer molding utilizing multilayered fiber preform

Cited by 12 publications

References 37 publications

Nonisothermal simulation on pressure during resin transfer molding

Nonisothermal simulation on pressure during resin transfer molding

Optimization method to select temperature based on chemorheological and exothermal reaction of RTM

Sensitivity analysis on resin transfer molding processes with edge effect and curing reaction characteristics

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