复合材料
材料科学
尺寸
环氧树脂
纤维
复合数
玻璃纤维
相间
抗剪强度(土壤)
艺术
环境科学
生物
土壤水分
土壤科学
视觉艺术
遗传学
作者
Xing Gao,John W. Gillespie,Robert E. Jensen,W. Li,Bazle Z. Haque,Steven H. McKnight
标识
DOI:10.1016/j.compositesa.2015.03.023
摘要
The effect of fiber sizing and surface texture on the strength and energy absorbing capacity of fiber reinforced composites has been evaluated at two length scales using the macromechanical quasi-static punch shear test and the micromechanical microdroplet test methods. E-Glass/SC-79 epoxy composite laminates with four different fiber sizing formulations with various degrees of chemical bonding and surface texture have been investigated. The failure modes during perforation and different energy dissipating damage mechanisms were identified and quantified. The punch shear strength and the total energy absorption per unit volume of composite with hybrid sizing have increased by 48% and 100% over the incompatible sizing. These results showed linear correlations with the interphase properties reported earlier by the authors (Gao et al., 2011) and provided a methodology for developing new sizing by tailoring chemical bonding and the fiber surface texture at the fiber–matrix interphase for improving both strength and energy absorption of composites.
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