The interlaminar interface of a carbon fiber epoxy-matrix composite as an impact sensor
نویسندگان
چکیده
The interlaminar interface of a crossply carbon fiber epoxy-matrix composite was found to be an impact sensor, with sensitivity to impact from 0.8 mJ to 5 J (though no indentation was observed) and to multiple (up to 35) impacts at the same energy. However, the sensing of a small impact after a large one was not effective if the small impact was much lower in energy than the large one. The higher the impact energy, the lower was the contact electrical resistivity of the interlaminar interface after impact. Above 1 J, the resistance tended to increase with partial or complete reversibility upon impact, though this effect was minor compared to the irreversible resistance decrease mentioned above.
منابع مشابه
Relationship of Interface Fracture Energy and Interlaminar Shear Strength of Carbon Fiber Reinforced Composite under Hydrothermal Treatment
The mechanical and physical properties of composite materials are greatly influenced by the structure and properties of fiber/matrix interface. Short beam shear test is often performed to evaluate the laminar interface properties in real applications, especially for studying them after a given hydrothermal treatment. However, the results depend on the interface and the matrix properties, so the...
متن کاملHigh-velocity impact properties of multi-walled carbon nanotubes/E-glass fiber/epoxy anisogrid composite panels
This work reports the high-velocity impact response of multiscale anisogrid composite (AGC) panels. The aim of the present study is to evaluate the influence of surface-modified multi-walled carbon nanotubes (S-MWCNTs) at different S-MWCNTs contents (0-0.5 wt.% at an interval of 0.1 wt.%) on the high-velocity impact responses of E-glass/epoxy AGC. Surface modification of MWCNTs is confirmed by ...
متن کاملThrough-thickness thermoelectric power of a carbon fiber/ epoxy composite and decoupled contributions from a lamina and an interlaminar interface
Thermoelectric structural materials are potentially attractive for large-scale energy harvesting. Through filler incorporation and unprecedented decoupling of the bulk (laminae) and interfacial (interlaminar interfaces) contributions to the Seebeck voltage (through-thickness Seebeck voltage of a crossply continuous carbon fiber/epoxy composite laminate), this work provides thermoelectric power ...
متن کاملDamage Assessment in Glass Fiber-Epoxy Matrix Composite under High Velocity Impact of Ice
This study investigated the influence of nanoclay on the impact damage resistance of glass fiber-epoxy composites under high velocity ice impact loading. Addition of 0.5 wt. % nanoclay into epoxy was shown to improve damage resistance compared to composite plates having no nanoclay platelet. The glass fiber-epoxy composites containing nanoclay brought about substantial improvement in ice impact...
متن کاملMoisture Diffusion Properties of Fabric Composite (Glass Fiber/Epoxy Resin)
In this study, the effect of hygrothermal conditioning on the moisture diffusion properties of the fabric composite (glass fiber/epoxy resin) was investigated. The water uptake of the specimens conditioned in humid environment at different relative humidities (0, 60 and 96 % r.h) at constant temperature (60°C) was evaluated by weight gain measurements. The moisture diffusion properties of the f...
متن کامل