Experimental and Numerical Modelling of LRI Process

Romain Brault; Michel Niquet; Sébastien Mistou

doi:10.4028/www.scientific.net/KEM.446.121

Paper Titles

Influence of Process and Material Parameters on Impact Response in Composite Structure: Methodology Using Design of Experiments
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Graft Interpenetrating Continuous Epoxy-Polysiloxane Polymeric Network
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Experimental and Numerical Modelling of LRI Process
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BEM Simulation of 3D Updated Resin Front for LCM Processes
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FEA of Dynamic Behavior of Top Hat Bonded Stiffened Composite Panel
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Experimental Characterization of Behavior Laws for Titanium Alloys: Application to Ti5553
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Effect of Ductile Damage Evolution in Sheet Metal Forming: Experimental and Numerical Investigations
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 446Experimental and Numerical Modelling of LRI...

Experimental and Numerical Modelling of LRI Process

Abstract:

The aim of this study is to gain knowledge concerning the process and its physics, as well as to become able to optimize the fabrication of large and complex composite parts in aeronautics appli- cations. Composite materials have many advantages and the use of this technology is increasing in the aeronautic industry. In the L.R.I. process, dry textile preforms are impregnated by a thermoset liquid resin. All the elements are enclosed in a vacuum bag of known pressure. Once preforms are totally impregnated, the resin system begins the curing reaction to obtain the composite part. This study contains two major sections. Firstly, numerical modeling was done with the Pam- Rtm nite element code to determine the evolution of the ow front during the infusion. Simulations were performed to analyse the infusion of sandwich composite parts with a perforate foam, which allows the inferior skin to be impregnated in the same operation. Secondly, experimental work was conducted to conrm the numerical results.

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Periodical:

Key Engineering Materials (Volume 446)

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121-130

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.446.121

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Online since:

July 2010

Authors:

Romain Brault, Michel Niquet, Sébastien Mistou

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