ISSN: 0090-3973
Page Count: 5

The “Instantaneous” Effect of Internal Moisture Conditions on the Strength of Glass-Fiber-Reinforced Plastics
Ishai, O
Associate professor, Faculty of Mechanical Engineering, Technion-Israel Institute of Technology,

Arnon, U
Advanced composites project engineer, Israel Aircraft Industries, Ben Gurion International Airport,

Abstract

Glass-fiber-reinforced laminates composed of two different commercial epoxy resin matrix formulations, a “medium-temperature” system and a “high-temperature” system, were tested in tension after immersion in hot water. Tests were carried out both in the “as-is” wet condition and after drying. The internal moisture condition was found to have a significant effect on the tensile strength. Dried specimens of the medium-temperature resin were stronger than their wet counterparts. The reverse was the case with specimens based on the high-temperature resin.

Keywords:
composite materials, fiber composites, tensile strength, internal moisture, glass-fiber-reinforced plastics, epoxy resin, laminates, hot water immersion

Paper ID: JTE10580J
DOI: 10.1520/JTE10580J
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