Author:

Keywords:

manufacturing processes, Science & Technology, Technology, Physical Sciences, Materials Science, Multidisciplinary, Metallurgy & Metallurgical Engineering, Physics, Multidisciplinary, Materials Science, Physics, textile composites, fabrics, shear, picture frame

Abstract:

This paper presents in-plane shear tests on a picture frame of a glass-PP textile weave in three different biaxial tensile states. Aim of these tests is to study the influence of tensile load in the yam direction on the shear resistance for this textile family and the repeatability of the current test method. Digital image correlation (DIG) is used to assess the local deformation of the fabric during the shear tests. The shear deformation of the fabric deviates significantly from the frame shear, but is not affected by the tensile state. During the shear deformation sideways sliding of the yarns and an overall rigid body rotation take place. Despite the ill-conditioned nature of the shear test, significant tensile-shear interaction was observed. However, it is difficult to assess the importance of this interaction as large data scatter exists between shear tests performed according to different test methods (frame and fabric size, clamping and sample preparation) or by different labs. © 2007 American Institute of Physics.