ASSESSMENT OF SHELL AND MEMBRANE MODELS FOR PREDICTING WRINKLING PHENOMENON IN ANNULAR GRAPHENE UNDER IN-PLANE SHEAR
In this paper, we study the wrinkling phenomenon in annular graphenes due to inplane shear by using molecular dynamics simulations. The in-plane shear is applied to the inner edge of the annular graphene while its outer edge is fixed. The wrinkles are found to be closely concentrated near the inner edge and take the form of highly curved wave crest at the inner edge and gradually flatten out near the outer edge. Also in this paper, the shell model and the membrane model proposed by previous researchers for graphene will be assessed on their ability to reproduce the wrinkling phenomenon in such loaded annular graphene sheet. It will be shown herein that the shell model and the membrane model are unable to predict accurately the number of wrinkling waves, the wave amplitude and wavelength that are obtained from molecular dynamics simulation, but they are useful in providing upper and lower bounds for these aforementioned wrinkling parameters.
Wrinkles shear single layer-graphene sheet finite element method (FEM) shell membrane
Z.Zhang W.H.Duan C.M.Wang
Department of Civil and Environmental Engineering, National University of Singapore, Singapore. Kent Department of Civil Engineering, Monash University, Australia Department of Civil and Environmental Engineering, National University of Singapore, Singapore. Kent
国际会议
The IJSSD Symposium 2012 on Progress in Structural Stability and Dynamics(2012国际结构稳定与动力学进展会议)
南京
英文
109-114
2012-04-14（万方平台首次上网日期，不代表论文的发表时间）