Three-dimensional process cycle simulation of composite parts manufactured by resin transfer molding

Shojaei, Akbar; Ghaffarian, Seyed Reza; Karimian, S. M. H.

doi:10.1016/j.compstruct.2003.12.001

Cited by 51 publications

(44 citation statements)

References 20 publications

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“…For the RTM flow front line advancement determination in a single fluid model with the FE-CV method, the FAN technique is normally used (Bruschke and Advani, 1990;Souza et al, 2008). The VOF method is usually applied to track the flow front interface between resin and air in two phases RTM models (Shojaei, Ghaffarian and Karimian, 2004;Yang et al, 2008).…”

Section: Paper Received 25 February 2011 Paper Accepted 4 December 2mentioning

confidence: 99%

Three-dimensional numerical modeling of RTM and LRTM processes

Isoldi¹,

Oliveira²,

Rocha³

et al. 2012

J. Braz. Soc. Mech. Sci. & Eng.

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Section: Paper Received 25 February 2011 Paper Accepted 4 December 2mentioning

confidence: 99%

Three-dimensional numerical modeling of RTM and LRTM processes

Isoldi¹,

Oliveira²,

Rocha³

et al. 2012

J. Braz. Soc. Mech. Sci. & Eng.

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“…To measure K accurately, specific apparatus are required. ASTM F433-02 and DIN 52612 describe standard procedures for measuring K. The most common techniques are the hot-line/hotwire method, [17][18][19][20] Guarded hot-plate method 17,[21][22][23] (ASTM C177-04), Lee's disc apparatus [24][25][26] (ASTM C-158), hot-disc devices, 27 and DSC measurements (normally with modulated DSC 26,[28][29][30][31][32][33] ). In this work, a Haake pvT100 device (Thermo Fisher Scientific Inc., Waltham, MA, USA) was used, which also had the capability to perform K measurements.…”

Section: Thermal Measurementsmentioning

confidence: 99%

Evaluation of injection‐molding simulation tools to model the cure kinetics of rubbers

Arrillaga¹,

Zaldua²,

Farid

2011

J of Applied Polymer Sci

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Rubber injection molding is a process whereby a rubber mix is injected into a closed mold where the material is shaped to the desired geometry. Having completely filled the cavity rubber mix is vulcanized. Vulcanization is the process whereby a viscous and tacky uncured rubber is converted into an elastic material through the incorporation of chemical crosslinks between the polymer chains. The degree of cure achieved depends on the formulation recipe and the time–temperature history endured by the material during the curing process while in the mold. The aim of this study was to check the capability of commercial injection‐molding simulation tools, such as Moldflow and Cadmould, to predict the degree of cure achieved in spiral‐shaped parts when subjected to various cure cycles. To use the simulation tools, it was necessary to characterize the material in terms of their thermal properties and kinetic behavior during curing. The degrees of cure were determined with swelling techniques and by the measurement of the residual cure exotherms with differential scanning calorimetry. On comparing the experimental values of the degree of cure with those predicted by the simulation tools, we found that the initial simulations underestimated the degrees of cure. Consequently, the criteria used to calculate the cure model parameters were modified to invoke faster cures. In so doing, good agreement was achieved between the degrees of cure predicted by the simulations and those obtained experimentally.© 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012

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“…The heat transfer and resin cure must be computed in 3D spaces. To address this issue, the 3D mold filling was performed using the structured mesh [10][11][12] . There are also studies [13][14] that focus on applying the 3D Galerkin FEM to model the filling process.…”

Section: Introductionmentioning

confidence: 99%

3D Numerical simulation of non-isothermal resin transfer molding filling process using unstructured tetrahedron mesh

Shi

Dong

2010

J. Shanghai Jiaotong Univ. (Sci.)

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We present a numerical formulation for resin flow based on the concept of quasi-steady state situation at the flow front. To be fit for complicated product shapes, we use the four-node unstructured tetrahedron mesh based on which the numerical formulation of temperature and degree of cure is developed. The validity of our method is established in the case where flexible meshes are used. The results show that the numerical procedure, tested on known data, provides numerically valid and reasonably accurate predictions.

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Three-dimensional process cycle simulation of composite parts manufactured by resin transfer molding

Cited by 51 publications

References 20 publications

Three-dimensional numerical modeling of RTM and LRTM processes

Three-dimensional numerical modeling of RTM and LRTM processes

Evaluation of injection‐molding simulation tools to model the cure kinetics of rubbers

3D Numerical simulation of non-isothermal resin transfer molding filling process using unstructured tetrahedron mesh

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