A Study on the Information Capability of Dielectric Spectra in Monitoring Nonisothermal Cure Processes

Author: Shtrauss V.

Source: Mechanics of Composite Materials, Volume 38, Number 2, March 2002 , pp. 181-186(6)

Publisher: Springer

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Abstract:

The monitoring of nonisothermal cure processes by means of nondestructive dielectric spectrometry is considered for two epoxy systems with araldite resins. It is demonstrated that the dielectric characteristics at different frequencies have different sensitivities to the recognition of cure processes. An attempt to evaluate the cure process from dielectric measurements by artificial neural networks is made. It is shown that a properly trained artificial neural network allows one to detect all stages of the cure process to a high accuracy.

Keywords: nonisothermal cure; cure stages; epoxy systems; dielectric spectra; artificial neural network

Language: English

Document Type: Regular paper

Affiliations: 1: Institute of Polymer Mechanics, University of Latvia, Riga, LV-1006, Latvia

Publication date: 2002-03-01