Temperature-dependent behaviour of glass/ionomer laminates:preliminary test results

Dieter Callewaert, Didier Delincé, Jan Belis, Rudy Van Impe, Laboratory for Research on Structural Models (LMO), Ghent University, Belgium

For this research, torsion tests and three-point bending tests were executed on glass/ionomer laminates under controlled temperature (5°C to 65°C) and relative humidity (50%) conditions. This article presents some preliminary test results. The torsion tests showed for instance that the torsion stiffness changes most around the glass transition temperature. At higher temperatures, a less changing, lower torsional stiffness is noticed much faster. However, the bending tests at 65°C showed that the bending stiffness still decreased after a loading duration of more than five days.

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