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Interfacial shear strength of glass fiber reinforced polymer composites by the modified rule of mixture and Kelly-Tyson model

机译：玻璃纤维增​​强聚合物复合材料的界面剪切强度通过改性混合物和凯莉 - 泰森模型

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摘要

Four types of commercial grade glass fiber reinforced thermoplastics (GFRP) were used in this study. Polymer matrices included polycarbonate (PC), polyoxymethylene (POM), polypropylene (PP) and polyamide 6 (PA6). The contents of GF were 10%, 20% and 40%. The GFRP were fabricated to dumbbell specimens by injection molding machine. Tensile strength of the GFRP composites was carried out by tensile testing. Theoritical caluculation of interfacial shear strenght was analyzed using a modified rule of hybrid maixture (MRoHM) strength equation according to the orientation and direction of glass fiber reinforcing. The fiber orientation was characterized from the fractured surface observation by scanning electron microscope and optical microscope. The tensile strength of GFRP composites increased with incresing glass fiber contents. However, the declination of tensile strength from the prediction was attributed to the reduction of glass fibers length and fiber orientation in GFRP composites. It is interesting to report that the interfacial shear strength of GFRP composites was calulated according to the MroFfM and the Kelly-Tyson model, which the interfacial shear strength of the composites increased with incresing glass fiber contents.
机译：本研究使用了四种类型的商业级玻璃纤维增​​强热塑性塑料（GFRP）。聚合物基质包括聚碳酸酯（PC），聚甲醛（PP），聚丙烯（PP）和聚酰胺6（PA6）。 GF的含量为10％，20％和40％。通过注塑机制造GFRP在哑铃样本中制造。通过拉伸试验进行GFRP复合材料的拉伸强度。使用根据玻璃纤维增​​强的方向和方向的混合艳感（MrOHM）强度方程的改性规则分析了界面剪切力的理论核性。通过扫描电子显微镜和光学显微镜，从裂缝表面观察表征纤维取向。 GFRP复合材料的拉伸强度随着玻璃纤维内容物的增量而增加。然而，从预测的拉伸强度的偏向归因于GFRP复合材料中的玻璃纤维长度和纤维取向的降低。有趣的是报告，根据MROFFM和KELLY-TYSON模型计算GFRP复合材料的界面剪切强度，复合材料的界面剪切强度随玻璃纤维内容物增加而增加。

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