Analysis on membrane wrinkling using stress extremum method

作     者：李云良 鲁明宇 谭惠丰 谭忆秋 

作者机构：School of Transportation Science and EngineeringHarbin Institute of Technology Post-doctoral Research Center in Civil EngineeringHarbin Institute of Technology Dept. of Mechanical EngineeringThe Hong Kong Polytechnic University Center for Composite Materials and StructureHarbin Institute of Technology 

出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)

年 卷 期：2012年第19卷第1期

页      面：34-39页

核心收录：

学科分类：08[工学] 080102[工学-固体力学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Sponsored by the National Natural Science Foundation of China (Grant No.51078114) the Doctoral Program of Higher Education of China (Grant No.2012302120058) 

主　　题：membrane wrinkle stress extremum method 

摘      要：A stress extremum method is developed based on Von Karman equations for analysis of membrane wrinkles in this paper. A mechanical model is also established for analyzing shear membrane wrinkles. Expressions of wrinkling wavelength,amplitude and angle are obtained in terms of the stress extremum method. A numerical analysis approach-directly disturbing method is proposed to analyze the configuration parameters of shear membrane wrinkles by introducing out-of-plane disturbing forces to trigger wrinkle formation,while it timely removes the applied forces in order to eliminate the effect of disturbing forces on analytical results. The simulation results agree well with analytical results,which demonstrate that the proposed approach is capable for analyzing the membrane wrinkles with good accuracy.