Research on Impact Resistance of Carbon-Ceramic Brake Disc Friction Surface to Foreign Particles

Based on the microscopic structure of fiber-reinforced composite materials, a finite element analysis model was developed using LS-DYNA software to simulate damage carbon-ceramic brake discs under high-speed foreign particles impact conditions. The incorporated Chang-Chang failure criterion intra-layer and introduced material stiffness reduction scheme investigate process mechanism discs. results show that primary forms are micro-cracks in matrix fiber compression failure. majority energy dissipated during is absorbed by unidirectional layer, with mesh layer absorbing relatively less energy. As angle increases, total absorption area disc also increase, tensile first occur, followed damage, finally damage. initial velocity both showed an overall upward trend, rate growth slow at then fast. shape has significant effect distribution disc, spherical-shaped causing more severe disc.