The weaving technology offers production of innovative and complicated textile structures such as double-walled shell. These structures have extra yarns in the z-direction and thus are known a 3D spacer fabrics. These fabrics possess low mass, high stiffness, while offering great potential to be used in production of high density woven structures with load-oriented fiber positioning of high stiffness and low mass. 3D spacer fabrics are widely used in composite industry due their use a reinforcement element in the third direction. In this work, thirteen types of 3d-woven spacer fabrics were prepared using a rapier weaving loom. Factors such as weft yarn type (polyester vs. acrylic), fabric thickness, number of fabric layers, laminatio of fabric layers (gluing vs. stitching) and number of stitch lines were selected as independent variables. Tensile creep test was conducted the samples i both warp and weft directions under constant load. The creep compliance parameter D(t) of each sample was obtained as a response variable at tensile loadings of 6 kgf, 12 kgf and 15 kgf. Successive residual method was used to characterize the viscoelastic properties of 3d-woven spacer fabrics in terms of selected structural independent variables. Thus, instantaneous strains, viscous strains and retarded strains were obtained for all samples. Keywords: 3d-woven textiles; viscoelastic modeling; successive residual method; creep compliance.
