Buckling criteria for vacuum bottle based on finite element analysis

K. Natori, T. Kobayashi, S. Tatsuta, T. Tanaka, Y. Arao

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

A bottle with a vacuum insulation structure is generally called a thermos bottle. It has a dual structure with inner and outer cylinders and a vacuum layer between them. The bottle with the structure maintains the heat and cold. It has been found useful for many years as a container that carries drinking water. Recently, the lightweight design of a vacuum bottle has been required to meet consumer demand. However, the bottle's wall collapses during the process of drawing a vacuum if the stiffness of the cylinder is not enough. To construct the design guide that can prevent the collapse of a double-structured bottle induced by the pressure difference, a numerical simulation was performed. The critical thickness tc, which is the thickness of the bottle when the bottle starts to deform under 1 atm, was defined. tc depends on the length and diameter of the bottle. The index to determine tc from the length and diameter of the bottle was suggested. To evaluate the validity of the analysis, vacuum bottles were prepared and experiments were conducted. The index we suggested showed good agreement with the experimental results. The shift of index within the increase of Young's modulus can be formulated.

本文言語English
ホスト出版物のタイトルComputational Methods and Experimental Measurements XVI
編集者Giovanni M. Carlomagno, Carlos A. Brebbia, Santiago Hernandez
出版社WITPress
ページ339-349
ページ数11
ISBN(電子版)9781845647322
ISBN(印刷版)9781845647322
DOI
出版ステータスPublished - 2013
外部発表はい
イベント16th International Conference on Computational Methods and Experimental Measurements, CMEM 2013 - A Coruna, Spain
継続期間: 2013 7 22013 7 4

出版物シリーズ

名前WIT Transactions on Modelling and Simulation
55
ISSN(印刷版)1743-355X

Conference

Conference16th International Conference on Computational Methods and Experimental Measurements, CMEM 2013
国/地域Spain
CityA Coruna
Period13/7/213/7/4

ASJC Scopus subject areas

  • モデリングとシミュレーション
  • 計算数学

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