Experimental investigation on fatigue behaviour of glass/epoxy quasi-isotropic laminate composites under different ageing conditions

Padmaraj, N H and Kini, Vijaya M and Pai, Dayananda (2021) Experimental investigation on fatigue behaviour of glass/epoxy quasi-isotropic laminate composites under different ageing conditions. International Journal of Fatigue, 143. ISSN 0142-1123

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Abstract

The present work investigates the effect of ageing on fatigue performance of glass/epoxy quasi-isotropic lami�nates. Specimens were aged in artificial seawater at ambient, sub-zero and humid conditions for a period of 180 days. Static tensile and dynamic tension-tension fatigue tests were performed on pristine and aged specimens and based on the experimental results S-N curve, rate of stiffness degradation and damage accumulation were established. The results revealed that fatigue damage growth depends upon the ageing conditions and percentage of moisture content. Multiple cracks, interfiber debonding and matrix decomposition from the fibre surface are responsible for the deterioration of fatigue properties.

Item Type: Article
Uncontrolled Keywords: Fatigue damage Stiffness Ageing Seawater Marine composites Moisture
Subjects: Engineering > MIT Manipal > Aeronautical and Automobile
Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 05 Apr 2021 09:40
Last Modified: 05 Apr 2021 09:40
URI: http://eprints.manipal.edu/id/eprint/156632

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