Abstract
The paper presents an investigation and analysis of the electromechanical and thermal characteristics of the carbon fiber alone as single tow and embedded in host materials such as polymer e.g., acrylonitrile butadiene styrene (ABS) using 3D printing. While carbon fibers can partially reinforce the structure, they can act as sensors to monitor the structural health of the host material. The piezo-resistive behavior was examined without any pretreatment of the carbon fiber under tensile test in both cases. Special focus on the filaments clamping types and their effects was observed. An auxetic behavior was exhibited; otherwise, the free part shows elastic and yielding ranges with break point at high resistance. An induced temperature of the carbon fiber was measured during the tensile test to show low variation. The carbon fiber can provide strength contribution to the host material depending on the percentage of filling the material in 3D printing. The relative variation of the electrical resistance increases by 400% while embedded in the host material, but decreases as the tows filament density increases from 1 to 12 K.
Highlights
Ensuring the operational safety and long-term stability of structures are essential requirements in designing and improvement of new materials
Embedding smart materials into structures to utilize their properties for actuation and sensing applications is an emerging topic that recently attracted the intension of researchers
WithSince this effect casted in this equation, we have measured the variation of Equation temperature on the the carbon fiber material is subject to a pulling force under tensile test, (2) shows effect casted in this equation, we have measured the variation of temperature on the fiber as the fiber as the tensile test was progressing using a thermal camera located in the middle ofThe the the components of the relative variation of the resistance depending on the strain and resistivity
Summary
Ensuring the operational safety and long-term stability of structures are essential requirements in designing and improvement of new materials. The aspect size ratio boosts their ability to be reinforced within different polymer-based materials Such reinforcement was utilized to enhance the strength properties of the hosting structures in various applications. Embedding smart materials into structures to utilize their properties for actuation and sensing applications is an emerging topic that recently attracted the intension of researchers It falls within the scope of developing a nervous system in the host material that can detect, diagnose, and quantify damages [1]. Wang and Chung showed that there is an initial decrease on the resistance of carbon fibers embedded in the epoxy when subject to tensile stretching [45]. The results will bein discussed respectA.to the literature review
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