Please use this identifier to cite or link to this item:
Title: Thermal shock behavior of hydrothermally conditioned e-glass fi ber/epoxy composites
Authors: Chakraverty, A P
Mohanty, U K
Biswal, B B
Keywords: epoxy composite
glass fi ber
glass transition temperature
inter-laminar shear strength
thermal shock
Issue Date: Aug-2012
Publisher: ICE Publishing
Citation: Emerging Materials Research, Volume 1 Issue EMR5, Pages 263–270
Abstract: The glass fi ber-reinforced polymer composites suffer from signifi cant moisture absorption properties, moisture due to both the ambience and direct immersion in ordinary water during the course of their practical applications. The quantity of moisture absorbed and its effect on the composite component in any engineering application is also severely infl uenced by the temperature fl uctuations. Hence the present work aims at evaluating the glass fi ber/ epoxy composite under hydrothermal exposure coupled with up and down-thermal shocks for various lengths of time. Inter-laminar shear strength (ILSS) values of shocked and non-shocked composite specimens were determined using INSTRON-1195 testing system. Low-temperature differential scanning calorimetry was used to monitor the glass transition temperature (Tg). A longer hydrothermal exposure showed an increase in the ILSS value after an initial low value. The ILSS seemed to vary with up and down-thermal shock differently for hydrothermally treated sample.Despite little variation in Tg value, the depression in the same was observed under up-thermal shock compared to down-thermal shock conditions. The fractographs of shocked and non-shocked specimen, as obtained from scanning electron microscope, divulged the chief mode of failure viz. fi ber fragmentation and delamination.
Description: Copyright for this paper belongs to ICE Publishing
Appears in Collections:Journal Articles

Files in This Item:
File Description SizeFormat 
MANUSCRIPT to EMR FINAL.pdf597.57 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.