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

N. H. Padmaraj; Kini M. Vijaya; Pai Dayananda

doi:10.1016/j.ijfatigue.2020.105992

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

N. H. Padmaraj, Kini M. Vijaya, Pai Dayananda^*

^*Corresponding author for this work

Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal
Department of Mechanical & Industrial Engineering Manipal Institute of Technology, Manipal

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

The present work investigates the effect of ageing on fatigue performance of glass/epoxy quasi-isotropic laminates. 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.

Original language	English
Article number	105992
Journal	International Journal of Fatigue
Volume	143
DOIs	https://doi.org/10.1016/j.ijfatigue.2020.105992
Publication status	Published - 02-2021

All Science Journal Classification (ASJC) codes

Modelling and Simulation
General Materials Science
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.ijfatigue.2020.105992

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

abstract = "The present work investigates the effect of ageing on fatigue performance of glass/epoxy quasi-isotropic laminates. 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.",

author = "Padmaraj, {N. H.} and Vijaya, {Kini M.} and Pai Dayananda",

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doi = "10.1016/j.ijfatigue.2020.105992",

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AU - Padmaraj, N. H.

AU - Vijaya, Kini M.

AU - Dayananda, Pai

PY - 2021/2

Y1 - 2021/2

N2 - The present work investigates the effect of ageing on fatigue performance of glass/epoxy quasi-isotropic laminates. 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.

AB - The present work investigates the effect of ageing on fatigue performance of glass/epoxy quasi-isotropic laminates. 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.

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

Abstract

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