For the process of resin transfer molding (RTM) of thick composite sections, multi-layer preforms with varying thermophysical characteristics across the different layers, or for geometrically complex mold geometries with varying thicknesses, the assumption of a thin shell-like geometry is no longer valid. The resin flow in the through thickness direction is no longer negligible and the current practice of treating the continuously moving flow fronts as two-dimensional and the temperature and cure as three-dimensional are not representative of the underlying physics. In view of these considerations, in the present study, the focus is on non-isothermal process modeling of RTM composites employing full three-dimensional modeling/analysis developments via effective computational techniques. Also, due to the highly advective nature of the non-isothermal conditions involving thermal and polymerization reactions, special considerations and stabilization techniques are also proposed in conjunction with a viable implicit pure finite element front tracking technique. Validations and comparisons with available experimental results are subsequently presented.
|Original language||English (US)|
|State||Published - 2000|
|Event||38th Aerospace Sciences Meeting and Exhibit 2000 - Reno, NV, United States|
Duration: Jan 10 2000 → Jan 13 2000
|Other||38th Aerospace Sciences Meeting and Exhibit 2000|
|Period||1/10/00 → 1/13/00|