| Summary |
Validity of the nonlinear finite element analysis with tension field theory was investigated for predicting the membrane surface feature including wrinkles and slacks. A squared wrinkled membrane, held fixed at three corners and subjected to in-plane shear force at the remaining corner, was studied. Comparing analysis results with experimental ones, it is presented that the membrane surface features in taut and wrinkled regions given by the analysis are in roughly agreement with the virtual neutral surface given by the least mean square approximation of the actual wrinkled membranes. It is also shown that membrane surface variation in the analysis against the virtual neutral surface is within one third of the maximum amplitude of the wrinkles.rimental tests, are introduced.
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