期刊
COMPOSITE STRUCTURES
卷 257, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2020.113129
关键词
Hybrid; Thermoplastic epoxy; Debonding; Interface; interphase
资金
- Japan Science and Technology Agency (JST) [JPMJCE1315]
This study investigated the interfacial shear strength and fracture mechanism of carbon/glass hybrid rods, finding debonding at the interface between glass fiber bundles and thermoplastic epoxy, with sinusoidal behavior observed during sliding, indicating a relationship between interface roughness and debonding and sliding strength.
Interfacial mechanical properties of carbon/glass hybrid thermoplastic epoxy composite rods play a crucial role in the determination of the composite strength and fracture behavior. In this study, push-out and push-back tests using three hybrid rods with different carbon/glass ratios were performed to investigate the interfacial shear strength and fracture mechanism. Debonding occurred at the interface between the glass fiber bundles and thermoplastic epoxy. After the onset of debonding, sinusoidal behavior during sliding was observed in the load displacement curve, which was identical with the interface roughness in terms of wavelength. Debonding and sliding strength were considered to be related to the interfacial bonding region between the carbon fiber bundle core and surrounding braided glass fiber bundles.
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