Bistable characteristics of thick-walled axisymmetric domes

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:51

Article

Madhukar, Amit¹  Perlitz, Daniel¹  Grigola, Michael¹  Gai, Donghai¹  Hsia, K. Jimmy¹ 

[1] Univ Illinois, Dept Mech Engn, Urbana, IL 61801 USA

关键词: Bistable structure;    Finite element method;    Arc-length method;    Thick-walled structure;   

DOI  :  10.1016/j.ijsolstr.2014.03.022

来源: Elsevier

【 摘 要 】

We apply a finite element analysis to examine the stability of spherical, thick-walled domes undergoing large deformation. We identify three energetic states, mono-stable, bi-stable, and pseudo-bi-stable that uniquely characterize the behavior of the dome during deformation. An empirical relation is developed using finite element simulations relating the stability of the dome to pertinent geometric parameters like height, length and thickness, which is verified experimentally. Using this relation, similar domes can be designed to have desired stability characteristics. (C) 2014 Elsevier Ltd. All rights reserved.

【 授权许可】

Free