The method for deformation analysis of coated plain-weave fabrics having nonlinear mechanical properties has been reported previously in this journal2). In this paper, a biaxial tensile tester developed by the authors and the crucial specimen suitable for the tester are introduced. The convergence properties of solutions obtained by applying the previous method2) on the deformation analysis of crucial specimens were studied in relation to the coaseness of subdivision of finite element and to the number of steps of itelative calculation. Finally, the method was verified by comparing biaxial stress-strain curves given by the calculation and the measurement. The results show that the method can be applied to deformation analysis of membrane structures.
