期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 125, 期 -, 页码 80-89出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2016.01.019
关键词
Fatigue; Polymer-matrix composites; Matrix cracking; Damage mechanics; Digital image processing
资金
- Danish Agency for Science, Technology and Innovation [DCCSM 0603-00301B]
An automated method for counting propagating matrix tunnelling cracks for use in mechanical testing of Glass Fibre Reinforced Plastic (GFRP) laminates under quasi-static and fatigue loading is presented. White light images are captured from specimens during the loading. The transmitted light is used to detect the cracks in the images, which are then processed to count the cracks as they develop and grow through the duration of the test. The reproducibility and accuracy of the image processing is demonstrated using simulated transverse crack densities and patterns. The methodology is demonstrated and validated experimentally using two different laminate stacking sequences of the type [0/-theta/0/ theta](s). The results related to the crack density evolution are shown to be consistent with results from the literature. (C) 2016 Elsevier Ltd. All rights reserved.
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