Elastoplastic bifurcation and collapse of axially loaded cylindrical shells

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:45

Article

Le Grognec, Philippe¹  Le van, Anh² 

[1] Ecole Mines Douai, Polymer & Composites Technol, F-59508 Douai, France

[2] Univ Nantes, Fac Sci, Lab Civil & Mech Engn, GeM, F-44322 Nantes, France

关键词: bifurcation;    buckling;    elastoplasticity;    finite element method;    axially compressed cylinders;   

DOI  :  10.1016/j.ijsolstr.2007.07.017

来源: Elsevier

【 摘 要 】

In this paper, a shell finite element is designed within the total Lagrangian formulation framework to deal with the plastic buckling and post-buckling of thin structures, such as cylindrical shells. First, the numerical formulation is validated using available analytical results. Then it is shown to be able to provide the bifurcation modes-possibly the secondary ones-and describe the complex advanced post-critical state of a cylinder under axial compression, where the theory is no longer operative. (C) 2007 Elsevier Ltd. All rights reserved.

【 授权许可】

Free