Research on Mechanical Properties of PBO Microfibers Based on Molecular Scale Dynamics

PBO fibers are prone to large deformation under high-speed impact loads, which is conducive to energy absorption through fiber tensile deformation and fracture. This article establishes a molecular scale model of PBO microfibers, which can deeply understand the phenomenon and characteristics of damage to PBO fiber materials through molecular dynamics optimization. It also theoretically predicts the structure and physical properties of such materials, reveals their failure mechanisms, and provides technical support for the research and development of military materials.