Variability in the mechanical properties of cell walls of Bambusa arundinacea (Retz.) Willd. based on nanoindentation method,

Abstract

Bambusa arundinacea (Retz.) Willd. is a large and thorny bamboo species used for construction and scaffolding purposes. Bamboo fibers, which are an important part of bamboo, give bamboo its excellent mechanical properties. The goal of this work was to get more information about fiber in order to learn more about bamboo material. It was tested for different ages, heights, and radial positions using the nanoindentation method. The results showed that the mean values of indentation modulus of elasticity and hardness of this species were 20.79 GPa and 497.01 MPa, respectively, and that the mechanical properties of the fiber cell walls were less affected by the three factors and were generally consistent. In regards to the age factor, it had little effect on the indentation modulus of elasticity, while the hardness increased slightly with age. The indentation modulus of elasticity and hardness tended to increase with increasing height. The fiber strength was relatively stable in different parts of the radial direction.

Analyzing fiber and vascular bundle characteristics, and micro-mechanical properties of Oligostachyum sulcatum

“…The average IMOE and hardness of O. sulcatum were 21.7 GPa and 604 MPa, respectively, which were similar to those of moso bamboo (22.0 GPa and 530 MPa), and the IMOE was slightly higher than that of Bambusa arundinacea (20.8 GPa and 497 MPa), while the hardness was much higher than that of B. arundinacea (Dai et al 2023b;Huang et al 2016). Compared to the world's largest bamboo, Dendrocalamus sinicus (24.1 GPa and 626 MPa), the IMOE and hardness of O. sulcatum were lower (Dai et al 2023a).…”