The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 1995
Filed:
Oct. 13, 1993
Ronald A Kline, Norman, OK (US);
M Cengiz Altan, Norman, OK (US);
The Board of Regents of the University of Oklahoma, Norman, OK (US);
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.