Numerical analysis and experimental studies of membrane wrinkles

Wrinkling patterns and the rules of wrinkling formation and expansion were analyzed in this paper. Direct disturbing method, a numerical method for membrane wrinkling analysis, was established based on finite element programme. The experimental results using photogrammetric procedure were compared with numerical analysis results. It is shown that the reasonable wrinkling deformation can be obtained by rational mesh density and timely removes the initial flaw during analysis. Wrinkles firstly appear on the left and right sides then extend to the membrane center, and the wrinkling amplitude increases with shear displacement. Results from both of the experiments and numerical analysis have a good agreement, which verifies the rationality of the numerical analysis method.