Mechanical Properties of PTFEーCoated Plain Weave Glass Fiber Fabrics and the Evaluations

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Publication year 1991
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Title Mechanical Properties of PTFEーCoated Plain Weave Glass Fiber Fabrics and the Evaluations
Author Hirokazu MINAMI
Summary PTFE-coated plain weave glass fiber fabrics have been used as the representative membrane material of membrane structures. In this paper, the mechanical properties of this material, which were properties of uni/biaxial extension, shear deformation, biaxial creep and stress relaxation and crack tear strength, were investigated using the experimental results. And some results of the evaluation on the properties were shown. The uni/biaxial extension curves showed notable anisotropy and inelasticity , and showed strong and peculiar nonlinearity. The uni/biaxial tensile strength of this material with a initial crack longer than 1cm was lower than 50% of the uniaxial tensile breaking strength without crack.