Scaling law for the onset of the surface wrinkling of multilayer tubes

被引：2

作者：

Sato, Motohiro ^{[1
]}

Ishigami, Kazusa ^{[2
]}

Kato, Hiroyuki ^{[1
]}

Umeno, Yoshitaka ^{[3
]}

Shima, Hiroyuki ^{[4
]}

机构：

[1] Hokkaido Univ, Fac Engn, Div Mech & Aerosp Engn, Kita 13 Nishi 8, Sapporo, Hokkaido 0608628, Japan

[2] Hokkaido Univ, Grad Sch Engn, Div Socioenvironm Engn, Kita Ku, N13 W8, Sapporo, Hokkaido 0608628, Japan

[3] Univ Tokyo, Inst Ind Sci, Meguro Ku, 4-6-1 Komaba, Tokyo 1538505, Japan

[4] Univ Yamanashi, Dept Environm Sci, 4-4-37 Takeda, Kofu, Yamanashi 4008510, Japan

来源：

EXTREME MECHANICS LETTERS | 2020年 / 40卷

关键词：

Ripple; Surface instability; Bending buckling; Multiple tube; Multiwall carbon nanotube; CARBON NANOTUBES; MECHANICAL-PROPERTIES; CYLINDRICAL-SHELLS; DEFORMATION; BEHAVIOR; MODEL;

D O I：

10.1016/j.eml.2020.100970

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Surface wrinkling is an instability mode that is often observed in a wide variety of multilayer tubes under bending deformation. When the degree of applied bending exceeds a critical value, wrinkles appear at the intrados of the tube and release a large amount of in-plane strain energy stored by bending deformation. In the present work, we propose a simple theoretical model for evaluating the critical curvature and critical bending moment for the occurrence of wrinkling in multilayer tubes and apply the model to carbon nanotubes in a case study. Results indicate an inverse proportional relationship between the two critical properties, which holds true regardless of the number of layers and the size of the hollow core. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：6

共 65 条

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