Damage self-healing method of composite structures based on bionic optical fiber

Abstract

Aiming at the self-diagnosis and self-healing problems of composite materials, inspired by the self-healing mechanism of organisms, this paper proposes a damage self-healing method for composite structures based on bionic optical fiber. The paper introduces the designed structure and material composition of the bionic optical fiber, and the self-healing principle of the bionic optical fiber-composite structure. Finally, the three-point bending method is used to conduct damage self-healing experimental research on the composite material, and the influence of the embedding of the bionic optical fiber on the structural properties of the composite material is also analyzed. The repaired images of the composite structure obtained by the microscope can be seen that the physical structure repair is well. Moreover, the damage self-healing experimental results show that the self-repair efficiency of the flexural properties of the composite structure is 65.05%. The proposal of bionic optical fiber has important significance and practical application value for the research on the damage self-healing of composite materials.