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Title: Effects of Thermal Shocks and Thermal Spikes on Hygrothermal Behavior of Glass-Polyester Composites
Authors: Bera, T
Mula, S
Ray, P K
Ray, B C
Keywords: Polymer Matrix composites
Environmental Degradation
Interfacial Strength
Hygrothermal Behaviour
Issue Date: 2007
Publisher: Sage
Citation: Journal of Reinforced Plastics and Composites, Vol 26, Iss 7, P 725-738
Abstract: The aim of present study is to investigate the degradation behavior of glass fiber reinforced polyester composites during hygrothermal ageing for different lengths of time after suffering thermal shocks and thermal spikes at 1000C, 1500C, and 2000C. The moisture gain kinetics and change of interlaminar shear strength (ILSS), a primary mode of analysis of interfacial strength of the composite, were evaluated. Moisture absorption, found more in spiked samples, showed initial Fickian trend but eventually changed to non-linear pattern as the exposure time increased. It has been found that the composite specimens having a history of thermal spike showed more degradation. The damage was found even more at higher temperature and at lower loading rates.
Description: Copyright for this article belongs to Sage. This is Author Version refreed post print
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