3D printed structures for modeling the Young's modulus of bamboo parenchyma

Acta Biomaterialia
P G DixonL J Gibson

Abstract

Bamboo is a sustainable, lightweight material that is widely used in structural applications. To fully develop micromechanical models for plants, such as bamboo, the mechanical properties of each individual type of tissue are needed. However, separating individual tissues and testing them mechanically is challenging. Here, we report an alternative approach in which micro X-ray computed tomography (µ-CT) is used to image moso bamboo (Phyllostachys pubescens). The acquired images, which correspond to the 3D structure of the parenchyma, are then transformed into physical, albeit larger scale, structures by 3D printing, and their mechanical properties are characterized. The normalized longitudinal Young's moduli of the fabricated structures depend on relative density raised to a power between 2 and 3, suggesting that elastic deformation of the parenchyma cellular structure involves considerable cell wall bending. The mechanical behavior of other biological tissues may also be elucidated using this approach. Bamboo is a lightweight, sustainable engineering material widely used in structural applications. By combining micro X-ray computed tomography and 3D printing, we have produced bamboo parenchyma mimics and characterized their st...Continue Reading

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Feb 14, 2017·Bioinspiration & Biomimetics·Sardar MalekLorna J Gibson

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Citations

Oct 17, 2020·Bioinspiration & Biomimetics·Ioannis ZampetakisFabrizio Scarpa
Aug 28, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Chukwuzubelu Okenwa UfodikeGrzegorz Dolzyk

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