Resin Transfer Molding Process: A Numerical Investigation

Oliveira, Iran Rodrigues de; Amico, Sandro Campos; Souza, Jeferson Ávila; Luz, Felipe Ferreira; Barcella, Raquel Cristine; Lima, Antônio Gilson Barbosa de

doi:10.4028/www.scientific.net/ddf.334-335.193

Cited by 7 publications

(9 citation statements)

References 7 publications

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“…Due to its importance, many published books [4], book chapters [5] and articles [6] are devoted to composite manufacturing applying the RTM techniques. These works report information about experiments and simulations (1D, 2D and 3D analysis) applied to different shapes.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing Fiber-Reinforced Polymer Composite Using RTM Process: An Analytical Approach

Santos

Lima

2017

DDF

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The Resin Transfer Molding process (RTM) has been widely used for manufacturing of high performance components in aerospace and automotive industries. It is an economical and faster method when compared to open molding process because it allows the molding of complex parts with constant thickness, dimensional precision, good surface finishing and an excellent control of mechanical properties. In this sense, this work aims to study theoretically the manufacture process of polymeric composites reinforced with fibers via resin transfer molding. The governing equations of conservation of mass and momentum, and Darcy's law are presented, and the exact solution of the problems is obtained via method of separation of variables. Predicted results of the flow front and the pressure fields of the resin inside the model during the injection process are presented, compared with experimental data and analyzed. It was verified a good agreement between the results.

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Section: Introductionmentioning

confidence: 99%

Manufacturing Fiber-Reinforced Polymer Composite Using RTM Process: An Analytical Approach

Santos

Lima

2017

DDF

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“…The shape memory alloys present two distinct phases: austenite; body-centered cubic crystal structure, which presents high mechanical resistance, and martensite, which presents low symmetry and low mechanical resistance [4]. Because the importance and the wide range of applications, NiTi alloys have been studied in recent years [5][6][7][8][9][10][11][12][13]. Thus, the interest has risen in applying such alloys as reinforcement for composite materials.…”

Section: Introductionmentioning

confidence: 99%

Applying Isothermal Injection Moulding Process in the Manufacturing of Polymer Composite Reinforced with NiTi Shape Memory Alloy

Mota

Araújo

Lima

et al. 2017

DDF

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SMART materials have gained several applications in industries, especially aeronautical and biomedical. Therefore, the fabrication process of these materials must present quality in the completion and dimensioning, in addition to well established mechanical properties. In this sense, the Resin Transfer Molding (RTM) process is presented as an alternative to the manufacture of such products. This process presents advantages compared to other methods, such as, product quality and low cost. Thus, this work aims to model and simulate numerically the manufacturing process of polymer composite reinforced with NiTi shape memory alloy by RTM using the Ansys CFX commercial software. Results of pressure, velocity and volume fractions fields of the phases are presented and discussed. It was verified that the process parameters, like injection pressure and resin inlet and air outlet positions influenced the total time of the process and final product quality.

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“…For a good RTM molding becomes is necessary to know and control different process parameters such as fluid viscosity, injection pressure, volumetric fraction of fiber, temperature and permeability of the medium. The injection pressure and temperature are the main factors, so, the optimized use of these parameters are desirable for a correct filling of the mold, this increasing productivity [2].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of the Resin Transfer Molding Process via PAM-RTM Software

Oliveira

Amico

Souza

et al. 2015

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This work aims to investigate the infiltration of a CaCO3filled resin in fibrous porous media (resin transfer molding process) using the PAM-RTM software. A preform of glass fiber mat (fraction 30%), with dimensions 320 x 150 x 3.6 mm, has been used in rectilinear injection experiments conducted at room temperature and injection pressure 0.25, 0.50 and 0.75 bar. The polyester resin contain 0% and 40% CaCO3. The numerical results were evaluated by direct comparison with experimental data. The flat flow-front profile of the rectilinear flow was reached approximately half length of the mold. It was observed, that the both velocity infiltration and permeability have decreased with increasing the CaCO3content, thus, increasing the time to processing of the composite material.

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Resin Transfer Molding Process: A Numerical Investigation

Cited by 7 publications

References 7 publications

Manufacturing Fiber-Reinforced Polymer Composite Using RTM Process: An Analytical Approach

Manufacturing Fiber-Reinforced Polymer Composite Using RTM Process: An Analytical Approach

Applying Isothermal Injection Moulding Process in the Manufacturing of Polymer Composite Reinforced with NiTi Shape Memory Alloy

Numerical Analysis of the Resin Transfer Molding Process via PAM-RTM Software

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