Abstract
The mechanical properties of hybrid composite interfaces are critical in determining the overall properties of composite materials. To investigate the mechanical performance of hybrid composite interfaces, an accurate and efficient method must be developed. In this work, nanoindentation is used in this work to investigate the mechanical performance of the carbon/glass interface and the influence of the distance between carbon and the glass fibers on the modulus of the thermoset matrix. The results show that the interface sizes around the carbon and glass fibers are around 1.5 and 2.0 μm, respectively. The modulus around the carbon fibers is 5–11 GPa without the fiber effect, while that around the glass fibers is 4–10 GPa. The modulus of the matrix is not affected by the two types of fibers when the distance between them is greater than 4.5 μm.
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