Finite Element Analysis on Layered Mechanical Properties of Carbon Fiber Wires Under Influence of Temperature

In order to clarify the effect of temperature on the layered mechanical properties of carbon fiber wires, while the critical temperature is considered, the gravitational strain distributions of each wire layer, strand and section in the breaking force conditions are calculated at temperatures driven by different voltages of an electric heating. The results show that, above the critical temperature, the carbon core is subjected to positive stress and the aluminum strand to a negative stress, making the wire unable to bear the breaking force. The maximum stress and strain of each strand appear at both ends of the wire, and the stress and strain at the chamfer position are slightly larger than the stress on the main body of the strand. The maximum stress at each wire cross-section is positive and occurs at the core, and near the end where the force acts it drops sharply. Carbon fiber wires are more suitable for various temperatures, but the changes in the mechanical characteristics at the clamping position at wire ends and at the small and medium trapezoidal sections need more exploration. © 2024 Science Press. All rights reserved.