Wrinkle-crease interaction behavior simulation of a rectangular membrane under shearing

作     者：C.-G.Wang.H.-F.Tan.X.-D.He Center for Composite Materials,Harbin Institute of Technology,150080 Harbin,China Post-doctoral Research Center in Material Science and Engineering,Harbin Institute of Technology,150001 Harbin,China 

作者机构：Center for Composite Materials Harbin Institute of Technology Harbin China Post-doctoral Research Center in Material Science and Engineering Harbin Institute of Technology Harbin China 

出 版 物：《Acta Mechanica Sinica》 (力学学报（英文版）)

年 卷 期：2011年第27卷第4期

页      面：550-558页

核心收录：

学科分类：08[工学] 0802[工学-机械工程] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 080102[工学-固体力学] 

基　　金：supported by the National Natural Science Foundation of China (10902027) the Specialized Research Fund for the Doctoral Program of Higher Education of China (200802131046) Aeronautical Science Foundation of China (2010ZA77001) the Fundamental Research Funds for the Central Universities(HIT.NSRIF.201156) 

主　　题：Membrane structure   Wrinkle crease interac tion Membrane wrinkling Creased membrane 

摘      要：Wrinkling analysis of a rectangular membrane with a single crease under shearing is performed to understand the wrinkle-crease interaction behaviors. The crease is considered by introducing the residual stresses from creasing and the effective modulus into the baseline configuration with assumed circular cross-sectional crease geometry. The wrinkling analysis of the creased membrane is then performed by using the direct perturb-force （DP） simulation technique which is based on our modified displacement components （MDC） method. Results reveal that the crease may influence the stress transfer path in the membrane and further change the wrinkling direction. The crease appears to improve the bending stiffness of the membrane which has an effective resistance on the wrinkling evolution. The effects of the crease orientation on wrinkle-crease interaction are studied toward the end of this paper. The results show that the wrinkling amplitude, wavelength, and direction increase as the crease orientation increases, and the wrinkling number decreases with the increasing crease orientation. These results will be of great benefit to the analysis and the control of the wrinkles in the membrane structures.