Research on the numerical simulation of liquid-infiltration-extrusion process for composites based on the rigid-viscoplastic FEM

Qi, Lehua; Su, Lei; Jiang, Chenkun; Zhou, Jiming; Li, H.J.

doi:10.1016/j.msea.2006.11.105

Cited by 13 publications

(8 citation statements)

References 9 publications

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“…2) illustrate that short carbon fibers are distributed approximately randomly. The vacuum pressure infiltration process [28] is used for fabricating Csf/Mg composites. During the infiltration and solidification of the liquid magnesium alloy under the pressure, the preform sustained the vertical pressure, which would result to the deformation of preform.…”

Section: (3) No Translation and Rotation Interference Between The Fibmentioning

confidence: 99%

Quantitative characterization of the fiber orientation variation in the Csf/Mg composites

Tian

Zhou

2015

Computational Materials Science

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Section: (3) No Translation and Rotation Interference Between The Fibmentioning

confidence: 99%

Quantitative characterization of the fiber orientation variation in the Csf/Mg composites

Tian

Zhou

2015

Computational Materials Science

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“…Ballmes H.K et al [5] investigated preform infiltration based on the thermal conductivity and Darcy's law by finite element method (FEM). Qi L.H et al [6] simulated the temperature fields and the infiltration fields by the finite element method and the finite difference method, respectively. In these studies, the research on the infiltration characteristics of liquid metal in porous media is mainly focused on the isothermal system.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of non-isothermal infiltration process for fabricating magnesium matrix composite

Su¹,

Bai²,

Li³

et al. 2017

Proceedings of the 2016 International Forum on Mechanical, Control and Automation (IFMCA 2016)

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Abstract. For the control and adjustment of the infiltration quality of the magnesium alloy liquid in porous perform, the coupling effect of temperature and pressure should be considered simultaneously. The thermodynamic characteristics of the local region can be adjusted by changing the boundary temperature of the porous performs. In this study, the mathematical model of the flow and heat transfer process of magnesium alloy liquid in carbon fiber perform was established. The numerical solution of the partial differential equation system is developed. The effects of the constant heating temperature and the linear heating temperature on the infiltration characteristics of the porous perform are investigated. The results showed that the linear non-isothermal heating condition could change the flow characteristics of the magnesium alloy liquid close to the inner wall of the porous perform. The fluid velocity along the flow direction tended to be average in the region close to the heating wall. Imposing temperature gradient on porous media was an effective way to regulate and control the infiltration quality. The numerical predictions were compared with the experiment data, and good agreement had been found between them. In addition, the numerical models could be developed to predict the appearance of defects in the end product and to study the evolution of the deformation of fibrous preform during metal infiltration.

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“…It is a considerable challenge to apply the commercial finite element software to simulate the realistic liquid-solid extrusion process. Many obstacles arise during the numerical modeling of thermomechanical behavior which occurred in liquid-solid extrusion process as stated by Qi et al [5], which include the incorporation and integration of the highly nonlinear viscoplastic constitutive laws, treatment of the liquid/mushy zone, temperaturedependent material properties, and dynamic transition from liquid phase to solid phase.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Liquid-Solid Extrusion Process Based on the Mechanical Model Coupled with Solidification

Zhou

2013

Advances in Mechanical Engineering

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Liquid-solid extrusion process is a combined process of casting and extrusion which can be used to form tubes or bars directly from liquid metal. The performance of products is enhanced through the large deformation and the solidification under pressure with less shrinkage cavity or porosity. Numerical simulation of this process is hard to run for it involves mechanical modeling of the dynamic transition from liquid phase to solid phase. The liquid zone and solid zone were modeled independently for reasons of their different characteristics of deformation. The deformation of liquid zone was described according to the principle of element removal method which eliminates the elemental distortion during the simulation. The solidified zone under elevated temperature was modeled through the hyperbolic sine constitutive equation. The dynamic transitions from liquid phase to solid phase were determined based on the results of thermal analysis. The mechanical model coupled with solidification proposed in this paper was verified through the experiments of liquid-solid extrusion of LY12 alloy.

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Research on the numerical simulation of liquid-infiltration-extrusion process for composites based on the rigid-viscoplastic FEM

Cited by 13 publications

References 9 publications

Quantitative characterization of the fiber orientation variation in the Csf/Mg composites

Quantitative characterization of the fiber orientation variation in the Csf/Mg composites

Numerical analysis of non-isothermal infiltration process for fabricating magnesium matrix composite

Numerical Simulation of Liquid-Solid Extrusion Process Based on the Mechanical Model Coupled with Solidification

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