Experimental analysis on membrane wrinkling under biaxial load - Comparison with bifurcation analysis

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:47

Article

Lecieux, Y.¹  Bouzidi, R.¹ 

[1] Univ Nantes, Inst Civil & Mech Engn GeM, Fac Sci & Tech, UMR 6183, F-44000 Nantes, France

关键词: Membrane;    Gossamer structures;    Field measure;    Fringe analysis;    Bifurcation analysis;    Buckling;   

DOI  :  10.1016/j.ijsolstr.2010.05.005

来源: Elsevier

【 摘 要 】

This paper presents a detailed experimental study of the formation and evolution of the wrinkle pattern that form in flat elastic and isotropic membranes under the action of in-plane tension. The experiments were carried out on a cruciform specimen stretched along two uncoupled axes using various loading paths. The wrinkled shapes of the membrane were digitized by using a full-field measurement based on the fringe analysis method. Over this experiment, several phenomena were observed: the mechanism of wrinkle division, the influence of the membrane thickness on the wrinkle pattern, and the reproducibility of a kinematic configuration of wrinkles. The main result is that non-unique wrinkle shapes have been observed over repeated experiments for nominally identical boundary conditions. The uncertainty of the experimental wrinkle shape has been explained using comparison with the results of a post-buckling finite element analysis. (C) 2010 Elsevier Ltd. All rights reserved.

【 授权许可】

Free