Effects of structural gradient characteristics of yak horn on its mechanical properties

Abstract

The yak horn analysis model is created based on the measurement and analysis of the macroscopic structural characteristics of yak horn. Then, the influences of the conical structure on the stress and strain distribution of the yak horn are analyzed using finite element method. The measurement results show that the macroscopic structure along the axial direction of the yak horn has a gradient distribution, and the steepness of the conical structure is about 42. The analysis results show that the steepness of the conical structure of the yak horn affects the distribution of stress and strain. When the yak horn model with the steepness of 42 is subjected to external load, its stress distribution is more uniform, which can effectively improve the strength and toughness of the horn. The above analysis results show that the excellent mechanical properties of yak horn are closely related to its structural gradient, and the steepness of 42 is a long-term natural optimization result, which is benefit to structural bionic design.