Effect of Wall Thickness and Node Diaphragms on the Buckling Behavior of Bamboo Culm

Luan C. Trinh, Quaiyum M. Ansari, Phong T.T. Nguyen, Trung Kien Nguyen, Paul M. Weaver

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The buckling behavior of bamboo culm is highly affected by internodal properties, i.e. material properties and geometric parameters of the trunk. In this study, the effects of Phyllostachys Edulis bamboo culms have on buckling phenomena under bending and compressive loads are investigated. Internodal walls are assumed to be composed of orthotropic functionally graded-type materials which are controlled by the volume fraction of the vascular fiber bundle. It is found that, with a constant internodal length the buckling behavior transitions from global to local as the tube radius increases. The global buckling load increases with approximately a fourth order polynomial in relation with the radius while the local buckling load linearly increases with the tube radius. Nodal wall thickening enhances the buckling load in both the global and local domains. There is an interactive contribution of nodal wall and diaphragm thicknesses on the buckling behavior up to a certain point where the local buckling load is independently determined by each internodal structure. The buckle can occur within thin diaphragms, which results in much lower buckling load compared with the tube without/removed the diaphragms.

Original languageEnglish
Title of host publicationComputational Intelligence Methods for Green Technology and Sustainable Development - Proceedings of the International Conference GTSD2020
EditorsYo-Ping Huang, Wen-June Wang, Hoang An Quoc, Le Hieu Giang, Nguyen-Le Hung
PublisherSpringer Science and Business Media Deutschland GmbH
Pages637-647
Number of pages11
ISBN (Print)9783030623234
DOIs
Publication statusPublished - 2021
Event5th International Conference on Green Technology and Sustainable Development, GTSD 2020 - Da Nang City, Viet Nam
Duration: 27 Nov 202028 Nov 2020

Publication series

NameAdvances in Intelligent Systems and Computing
Volume1284
ISSN (Print)2194-5357
ISSN (Electronic)2194-5365

Conference

Conference5th International Conference on Green Technology and Sustainable Development, GTSD 2020
Country/TerritoryViet Nam
CityDa Nang City
Period27/11/2028/11/20

Keywords

  • Bamboo diaphragm
  • Bamboo tube
  • Buckling analysis
  • Gradient orthotropic material
  • Phyllostachys Edulis bamboo
  • Thickening nodal wall

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