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首页> 外文期刊>Engineering Fracture Mechanics >Effect of fiber orientation on Mode-I delamination resistance of glass/epoxy laminates incorporated with milled glass fiber fillers
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Effect of fiber orientation on Mode-I delamination resistance of glass/epoxy laminates incorporated with milled glass fiber fillers

机译：纤维取向对玻璃/环氧层压材料的玻璃/环氧树脂层状抗性的影响

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摘要

The present work is focused on improving the Mode-I delamination resistance of glass/epoxy composite laminates with milled glass fiber fillers. The influence of the interface fiber orientation and also the effect of fillers on the Mode-I interlaminar fracture toughness was experimentally investigated and the results were correlated with the baseline glass/epoxy samples. It was observed that the dispersion of milled glass fiber fillers by weight of 5% of the epoxy matrix into the resin rich domain improved the fracture toughness efficiently, in all the cases of interface fiber orientation. This improvement in interlaminar fracture toughness was due to additional toughening mechanisms through crack deflection, filler debonding, filler interlocking/bridging and filler pullout. The results showed that incorporation of milled glass fiber filler enhanced the GICInitiation and GICPropagation fracture toughness by 102% and 50% in 0–0° interply orientations over the baseline glass/epoxy samples. Besides, fracture surface analysis of the samples using Scanning Electron Microscope (SEM) indicates that the different damage mechanisms correspond to the deviation in fracture toughness.
机译：本作本作的重点是改善玻璃/环氧复合层压材料的模式-I分层电阻与研磨玻璃纤维填料。界面纤维取向的影响以及填料对模式-I层间裂缝韧性的影响实验研究，结果与基线玻璃/环氧样品相关。观察到，在所有界面纤维取向的所有情况下，将研磨玻璃纤维填料重量的5％环氧基质的重量分散到树脂富域中的重量较高，改善了骨折韧性。 Interlaminar断裂韧性的这种改进是由于通过裂缝偏转，填料剥离，填充互锁/桥接和填充拔出的额外增韧机构。结果表明，在基线玻璃/环氧样品上掺入碾磨玻璃纤维填料的掺入凝结和GICPROPAGAGACACE韧性为0-0°互相取向的102％和50％。此外，使用扫描电子显微镜（SEM）对样品的断裂表面分析表明不同的损伤机制对应于断裂韧性的偏差。

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