Izvorni znanstveni članak

https://doi.org/10.21278/TOF.494073324

Compression Characteristics of Sorghum Straw Based on its Microstructure and Inverse Reconstruction

Guoyu Li ; School of Mechanical Engineering, Shanghai Dianji University, Shanghai, 201306, People’s Republic of China *
Yexuan Luo ; School of Mechanical Engineering, Shanghai Dianji University, Shanghai, 201306, People’s Republic of China

* Dopisni autor.

Sažetak

The structural properties of sorghum straw, a sustainable biomass, make it a promising material for applications in agricultural machinery and thin-walled tube bionics. This study analysed its microstructure using scanning electron microscopy (SEM) and inverse reconstruction, creating both composite and simplified 3D models. Finite element simulations revealed axial and radial compression characteristics, with the outer skin bearing higher stresses (up to 4,304 MPa) than the foam-like pith core. Vascular bundles, dispersed within basic tissues, vary in size and number across layers, contributing to the structural integrity of the straw. Experimental validation showed that the 3D composite model closely matched stress distribution to compression behaviour, with errors below 15%. The findings offer insights into mechanical properties of sorghum straw, supporting its application in biomedicine, bionics, and engineering.

Ključne riječi

sorghum straw; microstructure; inverse reconstruction; compression characteristics; finite element simulation

Hrčak ID:

340831

URI

https://hrcak.srce.hr/340831

Datum izdavanja:

10.12.2025.

Posjeta: 197 *