Measurement of Dynamic Elastic Modulus and Poisson’s Ratio of Sugarcane Core by Cantilever Beam Vibration Method

As an economical, efficient, and time-saving engineering technology, determining the dynamic mechanical properties of biocomposites have been widely used in non-destructive testing technology, such as the measurement of dynamic elastic modulus ( E d ) and dynamic Poisson’s ratio (μ). Here, the experiment measured the values of μ LT .μ LR .μ RT its dynamic elastic modulus at different positions of five common sugarcane varieties (Regan 1, Liucheng 05-136, Guitang 42, Funong 41, Yuetang 94-128). The results showed that the Poisson’s ratio values of μ LT and μ LR were the same, but there were significant differences in μ RT . The numerical results between different varieties showed significant differences in dynamic elastic modulus measurement. To further verify the reliability of the data, the experiment measured the static elastic moduli of five sugarcane materials by employing a universal testing machine. The values of the static elastic moduli and the dynamic elastic moduli were the same. The experiment observed significant mechanical differences among sugarcane varieties. In conclusion, our findings provide some basic support for the follow-up mechanical simulation analysis and lodging resistance research of sugarcane stalks.