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

被引：29
|
作者：
Padmaraj, N. H. [1 ]
Vijaya, Kini M. [2 ]
Dayananda, Pai [1 ]
机构：
[1] Manipal Acad Higher Educ, Manipal Inst Technol, Dept Aeronaut & Automobile Engn, Manipal 576104, India
[2] Manipal Acad Higher Educ, Manipal Inst Technol, Dept Mech & Mfg Engn, Manipal 576104, India
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2021年 / 143卷
关键词：
Fatigue damage; Stiffness; Ageing; Seawater; Marine composites; Moisture;
D O I：
10.1016/j.ijfatigue.2020.105992
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
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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页数：8
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