Mechanical properties of polyvinyl chloride-coated fabric under cyclic tests

Abstract

The aim of the present paper is to propose a method of laboratory tests necessary for the identification of mechanical properties of the coated fabric. The material parameters of the coated fabric AF 9032 are specified on the basis of the uniaxial and biaxial tensile tests. For the identification process, the techniques based on the least squares methods are used. Additionally, the uniaxial and biaxial cyclic tests are performed in order to observe a change of immediate mechanical properties under cyclic load.

Mechanical properties of Precontraint 1202S coated fabric under biaxial tensile test with different load ratios

“…Nevertheless, the shape of the cross-shaped specimen with and without strippers for the others coated fabric was tested by the author (see e.g. [35]). On the other hand, another type of specimen damage was observed during the tests.…”

“…10 and 11) that a part of the stress-strain curves for biaxial tests under different load ratios are located nearby 1:1 loading carves the mean curve of the stress-strain curves for 1:1 load ratio is specified. Based on the concept described in [35] the results of the piece-wise linear approximation for 1:1 biaxial tensile tests are determined, presented in Table 5. The strain e specifies the range of applicability of the longitudinal stiffness values F. The mean values of non-linear elastic parameters describe the warp and weft 1:1 stressstrain loading curves with coefficients of determination R 2 > 0.99.…”

Composite GFRP U-Shaped Footbridge

“…• identification of mechanical parameters of materials analogous to [1], [2]; • static and dynamic testing of samples in the technical scale of the finished sandwich [23]; • structural and local tests with acoustic emission measurements [12], of a 3-meter segment with target cross section [8], [19] (Fig. 9); • load-carrying test of full-size object [9].…”

An elastic phenomenological material law for textile composites and it's fitting to experimental data

“…Apparently, there are several, solely macroscopic models in the literature. The dense net method uses two independent functions to be fitted to the uniaxial measurements in the two orthotropic directions (Ambroziak [1][2]). It uses nonlinear functions to represent the different slopes of the stress-strain curves (Chaboche [8], Bodner [5]), however it lacks to handle the interaction between the two orthogonal yarn directions, practically there is no transversal interaction in the model.…”