Paper Title
Learning From Bamboo:Optimal Mechanisms Of Bending Resistance For Cylindrical Structures

Abstract
Bamboois a plant with high strength and flexibility. It has a hollow cylindrical shape, which gives it strength over its height, although there is a risk of losing resistance to bending. Here, we examine the optimal form of the bamboo culm in terms of nodes and vascular bundles. A bamboo culm is divided into chambers by nodes and the internode lengthdiffers from bottom to top. Its vascular bundles also have the distinctive feature of a linear distribution. We consider these how characteristics, nodes and vascular bundle distribution, contribute to the suppression of ovalisation caused by bending moments. Keywords- Bamboo, Fiber, Tube Bending, Buckling Mode, Energy Method