Experiment and evaluation of wrinkling strain in a corner tensioned square membrane

• Published in: Acta mechanica Sinica Vol. 30; no. 3; pp. 430 - 436
• Main Authors: Lan, Lan, Wang, Chang-Guo, Tan, Hui-Feng
• Format: Journal Article
• Language: English
• Published: Heidelberg The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences 01.06.2014
• Subjects: Amplitudes; Classical and Continuum Physics; Computational Intelligence; Corners; Correlation; Engineering; Engineering Fluid Dynamics; Mathematical models; Membranes; Research Paper; Simulation; Strain; Theoretical and Applied Mechanics; Wrinkling; 变形; 实验; 数字图像相关技术; 膜; 角落; 评价; 起皱; 预测模型; Wrinkling strain; Wrinkling amplitude; Membranestructure; Wrinkle; Digital image correlation
• ISSN: 0567-7718; 1614-3116
• DOI: 10.1007/s10409-014-0041-x

Prediction of wrinkling characteristics is strongly correlated with the strain perpendicular to wrinkling direc- tion. In this paper, the strain field of wrinkled membrane is tested by VIC-3D system based on the digital image correlation technique. Experimental results are validated by the tension wrinkling simulation. The experimental strain perpendicular to wrinkling direction is analyzed in depth. The wrinkling strain of a square wrinkled membrane under corner tension is extracted from experimental strain perpendicular to wrinkling direction. A quantitative characterization format of the experimental wrinkling strain is proposed. A modified prediction method of wrinkling amplitude is presented based on the experimental wrinkling strain. The re- sults show that the precision of modified prediction model has improved 13.2% compared with the classical prediction model. The results reveal that the modified model can give an accurate prediction of the wrinkling amplitude.