Internal structure and fatigue performance of quasi-unidirectional non-crimp fabric reinforced laminates

被引：4
|
作者：
Korkiakoski, Samuli [1 ]
Sarlin, Essi [2 ]
Suihkonen, Reija [2 ]
Saarela, Olli [1 ]
机构：
[1] Aalto Univ, Sch Engn, Dept Appl Mech, POB 14300, FI-00076 Aalto, Finland
[2] Tampere Univ Technol, Dept Mat Sci, Tampere, Finland
来源：
JOURNAL OF COMPOSITE MATERIALS | 2017年 / 51卷 / 24期
关键词：
Polymer-matrix composites; fibre-reinforced material; constant amplitude; S-N curves; damage accumulation; INFUSION PROCESS; NCF COMPOSITES; FIBER; GLASS; BLADES;
D O I：
10.1177/0021998316683783
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
The aim of this work was to study the effect of stitch pattern and stitch tension on tension-tension fatigue performance of quasi-unidirectional non-crimp fabric reinforced glass-fibre/epoxy laminates. Internal structure variations of the laminates were characterised using cross-sectional microscopy imaging for the evaluation of fatigue test results. Reinforcements for the study were manufactured with three different stitch patterns and two different stitch tensions. Based on the results, the stitch pattern contributes to in-plane and out-of-plane waviness of fibres, as well as on the size and shape of the axial fibre bundles. The fatigue life and slope parameter of the fitted S-N curve were significantly dependent on the stitch pattern, while they were not dependent on the applied stitch tension.
引用
收藏
页码：3405 / 3423
页数：19
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