A SOLUTION FOR AN ILL-CONDITIONED INVERSE PROBLEM - A COMPOSITE SLENDER BEAM IN BENDING TESTS

Authors
PARDO E TOMBA P CARELLA J
Citation
E. Pardo et al., A SOLUTION FOR AN ILL-CONDITIONED INVERSE PROBLEM - A COMPOSITE SLENDER BEAM IN BENDING TESTS, Polymer testing, 16(5), 1997, pp. 461-480
Citations number
11
Journal title
Polymer testing → ACNP
ISSN journal
01429418
Volume
16
Issue
5
Year of publication
1997
Pages
461 - 480
Database
ISI
SICI code
0142-9418(1997)16:5<461:ASFAII>2.0.ZU;2-0
Abstract
The bending stiffness of composite beams measured at different tempera tures can be used to determine interphase composition profiles generat ed by polymer-polymer interdiffusion, or solvent diffusion into one fa ce of the polymer beam. A suitable method to solve the inverse problem thus generated is presented here, which allows calculation of beam co mposition profiles. A simple numerical procedure is also outlined Erro r propagation analysis is included, together with a precise guide to m inimize experimental error. (C) 1997 Elsevier Science Ltd.