Buckling suppression of a thin-walled Miura-origami patterned tube

PLoS One. 2022 Jul 26;17(7):e0270228. doi: 10.1371/journal.pone.0270228. eCollection 2022.

Abstract

In order to improve energy absorption capacity of tubes under axial compression, this work introduces an octagon tube patterned by curved Miura origami pattern and aims at suppressing global buckling of the tube via an appropriate fold line scheme. By categorizing the fold lines of the tube into two types (hinge-like lines and continuous lines) and allocating them to different positions, four arrangement schemes of the lines are developed. Through numerical comparison in force-displacement curve, stress distribution and lateral deformation capacity among four 3-level patterned tubes under different schemes, Scheme 4 (inclined valley lines as hinge-like lines and the others as continuous lines) is found to outperform the others in suppressing global buckling by reducing the magnitude of lateral deformation by up to 59.9% and by delaying the occurrence of global buckling by up to 35.9% compared with the other schemes. To step further, the scheme is applied in a long tube and geometrically different tubes are compared. The results prove that the scheme is potentially an effective way to alleviate buckling instability of a long tube when appropriately designed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Mechanical Phenomena*
  • Pressure

Grants and funding

This research was funded by: 1. The Natural Science Foundation of China, grant number 52008064, YL. 2. The Natural Science Foundation of China, grant number 51822805, JC. 3, The Science and Technology Research Program of Chongqing Municipal Education Commission of China, grant number KJQN202000737, YL. 4, Open Project of Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education of China, grant number CPCSME2019-07, YL. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.