Analysis and control of cured deformation of fiber-reinforced thermosetting composites: a review

Lian, Jiaoyuan; Xu, Zhongbin; Ruan, Xiangyan

doi:10.1631/jzus.a1800565

Cited by 12 publications

(5 citation statements)

References 119 publications

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“…Thus, the fiber volume content was set as a constant during the numerical analysis. To study the influence of t gd on MRD, the t gd was set to 10,15,20,25,30,35,40,45,50, and 60 min while the other parameters remained the same as MRCC. Figure 8(a) shows the change in MRD and MRS with increasing t gd .…”

Section: Effect Of Cure Parameters On the Mrdmentioning

confidence: 99%

“…Theoretically, the length of the second dwell times changed little for the residual stress and deformation if the epoxy finished its curing reaction. To numerically study the influence of the second dwell time on the process-induced deformation, the second dwell time was set to 0, 10,20,30,40,60,80,100,120,140,160,180,200,220, and 240 min. The other parameters remain the same as those of MRCC.…”

Section: Effect Of Cure Parameters On the Mrdmentioning

confidence: 99%

“…These parameters have been studied separately to control the maximum residual deformation (MRD) and maximum residual stress (MRS) after demolding. 10 Only a few reports have focused on the first dwell. It was reported that a two-dwell cure cycle results in an increase in spring-in deformation compared with a single-dwell cure cycle.…”

Section: Introductionmentioning

confidence: 99%

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Comparative study on the effect of cure parameters on residual deformation for thermoset composite laminates

Liu

Zheng

Gao

et al. 2021

Journal of Composite Materials

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Process-induced deformation in composite laminates usually occurs during the curing process and is strongly dependent on the cure parameters. To study the influence of the cure parameters on the warpage deformation, an experimental study was carried out with different heating rates and first dwell times. The full-field process-induced deformation was captured by contactless 3 D scanning system to validate the numerical method. Second, a multi-scale thermo-viscoelastic modeling technique was employed to predict the process-induced deformation. The results showed a good agreement between the simulation and experimental deformation, which demonstrates the effectiveness of the numerical model. The influence of six different cure parameters of the vacuum bagging process on the warping deformation and residual stress were considered in the numerical study. Knee points were found on the curves depicting the influence of cure parameters on the maximum residual deformation. Within the manufacturer’s specified range, a slower heating rate of 1.5°C/min reduced the process-induced deformation by 7%, while the other parameters affected the process-induced deformation by less than 1.4%. Meanwhile, the residual stress was also reduced with a slower heating rate. Consequently, a lower heating rate is suggested to reduce both the process-induced deformation and the residual stress for thin parts or the zero-bleeding process.

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Section: Effect Of Cure Parameters On the Mrdmentioning

confidence: 99%

Section: Effect Of Cure Parameters On the Mrdmentioning

confidence: 99%

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Comparative study on the effect of cure parameters on residual deformation for thermoset composite laminates

Liu

Zheng

Gao

et al. 2021

Journal of Composite Materials

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“…Ersoy et al proposed a path-dependent model for property leapfrogging based on the phenomenon that the time dependence of curing deformation is not obvious [21]. More recently, Jiao et al summarized the current understanding of the curing deformation mechanism, simulation scheme, and control method [22].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Curing Deformation of Polyurethane Composite Solar Cell Bezels

Wu,

Zhou,

Fan

et al. 2024

Symmetry

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In the present study, we investigated the deformation of polyurethane composite solar cell bezels during the curing process. To address the problem of deformation, thermochemical and curing kinetics models were developed to investigate the mechanical behavior of the resin during the curing process. The importance of the influencing factors was determined through orthogonal experiments and simulation analysis. The results showed that holding pressure had a significant effect on the amount of deformation of the bezel, followed by curing temperature, pultrusion speed, and holding time. The optimal combination of process parameters was a curing temperature of 150 °C, a pultrusion speed of 50 cm/min, a holding time of 12 s, and a holding pressure of 0.14 MPa, which aided in significantly reducing the deformation of the bezel and achieving effective control of curing deformation.

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“…[9][10][11] The molds greatly influence the curing deformation of composite parts, due to the mismatching of the coefficient of thermal expansion (CTE) between molds and composite parts. [12][13][14][15] During the curing of composite parts, the external heat transfer and the internal resin curing exothermic will form a complex temperature field. Due to the mold-part interaction, if the difference in CTE between molds and composite parts is significant, the thermal deformation will become serious.…”

Section: Introductionmentioning

confidence: 99%

Process optimization for short carbon fiber polyetherimide composite mold

Jing

Xie

et al. 2023

Journal of Reinforced Plastics and Composites

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With the high precision requirements and the trend of large-scale composite parts, the development of composite molds is imminent. The short carbon fiber (SCF) composite mold is mainly prepared by the technological process flow of composite sheet injection, the bonding of composite plates, and machining. However, the current process optimization method has not matured adequately, and there are still many shortcomings, for example, low precision and high cost. In this paper, the optimization method of SCF/polyetherimide (PEI) composite molds is proposed. Many experiments have been conducted, and the results show that the coefficient of thermal expansion of composite samples can be effectively reduced and the mechanical properties can be improved by optimizing the SCF weight ratio and carbon fiber length. The bonding strength of composite joints in a high-temperature environment can be improved by optimizing the bonding process parameters and modification by carbon nanotubes. Based on the above optimization method, the SCF/PEI composite mold is prepared, and the C-shaped beam composite part is fabricated by using this mold. Compared with the part made by aluminum mold, the shape accuracy of the C-shaped beam composite part is proven high through digital measurement technology.

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Analysis and control of cured deformation of fiber-reinforced thermosetting composites: a review

Cited by 12 publications

References 119 publications

Comparative study on the effect of cure parameters on residual deformation for thermoset composite laminates

Comparative study on the effect of cure parameters on residual deformation for thermoset composite laminates

Analysis of the Curing Deformation of Polyurethane Composite Solar Cell Bezels

Process optimization for short carbon fiber polyetherimide composite mold

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