Analysis of Flow in the RTM Process GenCorp Research, Akron, OH

Format:

Conference/Event

Author/Creator:

Lee, Y. M., author.

Conference Name:

SAE International Congress & Exposition (1989-02-27 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1989

Summary:

During resin transfer molding (RTM) or structural reaction injection molding (SRIM), a low viscosity fluid is injected into a mold containing preplaced fiber reinforcement. The purpose of this paper is to present a mathematical model for the filling stage in RTM or SRIM when the viscosity and cavity thickness can be assumed to remain constant. We will show how by a transformation of variables that the equations governing RTM flow, become the same as the ones for injection molding into an empty mold when the thin gap approximation (Hele Shaw model) is made. We will also show results of simulating the filling of a typical body panel and show how the model can be used to estimate where to locate injection points and air vents. Simple algebraic equations which can be used to estimate fill times without running the computer program are given. Permeability and paste viscosity measurements are also given

Notes:

Vendor supplied data

Publisher Number:

890247

Access Restriction:

Restricted for use by site license