کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1466533 | 990063 | 2011 | 11 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: An experimental assessment of open-hole tension–tension fatigue behaviour of a GFRP laminate An experimental assessment of open-hole tension–tension fatigue behaviour of a GFRP laminate](/preview/png/1466533.png)
The drive to improve predictive models and design methodologies of fibre-reinforced polymer composites subjected to fatigue loading is reliant on more accurate and reliable methods for monitoring and assessing material degradation and fatigue life. This paper presents the results of an experimental study carried out to evaluate the applicability of various measurement techniques including digital image correlation (DIC) and multiplexed fibre Bragg grating (FBG) sensors for this purpose. The study focused on the open-hole tension (OHT) fatigue behaviour of a quasi-isotropic glass fibre-reinforced plastic (GFRP) laminate under constant and block amplitude loading. Constant amplitude tests were conducted at two different R-ratios (R = σmin/σmax) and the block amplitude tests involved two or more stress levels. Longitudinal strain and stiffness, and surface temperature are used to assess damage progression and fatigue life. These parameters are shown to be interrelated and potentially suitable for predicting notch fatigue performance.
Journal: Composites Part A: Applied Science and Manufacturing - Volume 42, Issue 10, October 2011, Pages 1310–1320