Curing of composite materials using extended heat transfer model

Details Curing of composite materials using extended heat transfer model Curing of composite materials using extended heat transfer model

1993-10-13

1995-09-26

Heitbrink, Jill L.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 406, 264 66, 425135, 425143, B29C 3504

Patent

active

054532264

ABSTRACT:
The present invention is a method for controlling the curing process of a composite material part in a curing vessel such as an autoclave. The method relies on the comparison of actual part parameter values to predicted part parameter values wherein the predicted values are obtained from computer simulations of the cure cycles using convective heat transfer, thermo-chemical, cure kinetics, resin flow and viscosity analytic models. The invention provides a methodology for the continuous selection and updating during the cure process of new optimal cure cycles from sets of cure cycles in response to actual material behavior during the curing process. An extended heat transfer model coupled to the thermo-chemical model accounts for convective heat transfer within curing vessel during the curing process.

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