Performance Characteristics of Twisted Fibers:

1. Mechanical Properties

Due to the multi-level twisted structure, external forces are effectively dispersed within the fiber network. When subjected to tensile load, stress is transmitted in multiple directions through the twist points, avoiding stress concentration. The elongation at break of twisted fibers is usually higher than that of parallel fiber bundles because the slippage and reorientation between fibers consume additional energy. Under compression, the twisted structure absorbs energy through deformation, exhibiting good resilience.

2. Structural Stability

The three-dimensional network structure gives twisted fibers resistance to tearing and delamination. When the local structure is damaged, crack propagation is hindered by the twist points, preventing the damage from spreading to the entire structure. This characteristic allows twisted fibers to maintain structural integrity under dynamic loads.

3. Functional Designability

Performance can be controlled by adjusting the twisting parameters. Increasing the twisting density increases the modulus but reduces toughness; controlling the twisting angle can adjust the degree of anisotropy; combining fibers of different materials can produce multifunctional composite materials. For example, in some industrial applications, twisting conductive fibers with ordinary fibers can produce conductive mesh materials.