Nonlinear Buckling Analysis of Stiffened Carbon Nanotube-Reinforced Cylindrical Shells Subjected to External Pressure in Thermal Environment

被引：2

作者：

Dong, Dang Thuy ^{[1
]}

Hieu, Pham Thanh ^{[1
]}

Duc, Vu Minh ^{[1
]}

Phuong, Nguyen Thi ^{[1
,2
]}

Tien, Nguyen Van ^{[1
]}

Nam, Vu Hoai ^{[1
]}

机构：

[1] Univ Transport Technol, Fac Civil Engn, Hanoi 100000, Vietnam

[2] Hiroshima Univ, Grad Sch Adv Sci & Engn, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 7398527, Japan

来源：

MECHANICS OF COMPOSITE MATERIALS | 2023年 / 59卷 / 04期

关键词：

nonlinear buckling; CNT-reinforced composite; cylindrical shell; thermal environment; external pressure; stiffener; POSTBUCKLING ANALYSIS; VIBRATION;

D O I：

10.1007/s11029-023-10131-9

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

The main aim of this paper is to study the nonlinear buckling behavior of carbon nanotube-reinforced (CNT-reinforced) cylindrical shells with the CNT-reinforced stiffeners under external pressure taking into account the effects of uniform temperature rise. A new design of stiffener system is proposed for CNT-reinforced cylindrical shells with five cases of the CNT distribution law for shell and stiffeners. A modified homogenization technique for CNT-reinforced stiffeners is developed and presented. Based on the Donnell shell theory and the von Karman nonlinearity assumption, the Galerkin method is applied with the solution of deflection approximated in threeterm form, the critical buckling, and load-deflection postbuckling curves can be achieved in explicit expressions. Effects of the CNT-reinforced stiffeners, the thermal temperature, and the CNT-reinforced parameters on the external pressure buckling responses are numerically indicated and validated.

引用

页码：779 / 794

页数：16

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