Open AccessBiaxial testing of textile material - methodology and instrument assembly procedure
Author(s) -
Nela Freiherrová,
Marie Horňáková,
D Juračka,
L Stulerova,
L Kapolka
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1209/1/012030
Subject(s) - orthotropic material , material properties , textile , characterization (materials science) , roof , plan (archaeology) , structural engineering , elasticity (physics) , computer science , mechanical engineering , structural material , materials science , process engineering , engineering , finite element method , composite material , nanotechnology , geology , paleontology
Membrane structures are becoming popular because of the potential usage in structures with higher aesthetic claims. For the roofing of these structures, different textile materials are used. These special materials offer an alternative to conventional roofing materials and allow, besides its lightweightness, also a possibility to roof a difficult floor plan and big span. When designing such a construction, there are some challenges related to the properties of the specific material. In order to exploit the full potential of textile membrane materials, it is necessary to choose an appropriate material model for numerical modelling, which takes into account its nonlinear behaviour. The two most important material characteristics needed for characterizing the behaviour are Young’s modulus of elasticity and Poisson’s ratio. Since the material is orthotropic in most cases, it is necessary to test the material in two directions; therefore, these characteristics need to be obtained from the biaxial test. This contribution is focused on the research of the methodology of biaxial tests and test instrument assembly procedure, which will be used for the following testing of textile materials.