Multiaxis multilayered non-interlaced/non-Z E-glass/polyester preform and analysis of tensile properties of composite structures by statistical model

Abstract

In this study, non-interlaced/non-Z single layer and multilayered uniaxial, biaxial and multiaxis preform structures were developed to produce E-glass/polyester composite structures. The data generated from the tensile tests of the composite structures were analyzed by using a regression model. We found that the tensile strength of the E-glass/polyester structures depended on yarn orientation and the number of layers. It was also indicated that the tensile properties of the composite structures were proportional to their total fiber volume fractions. If all the E-glass/polyester structures are made with the same preform packing density, the structures made from coarse fiber show high tensile strength, compared to structures made from fine fiber, due to high fiber volume fraction. All structures showed mode-I type delamination failure which occurred in the out-of-plane direction as a form of interlayer splitting parallel to the applied tensile load direction. Local interlayer failures were observed between warp/warp in uniaxial structures, warp/filling in biaxial structures, and bias/bias and bias/filling in multiaxis structures due to the non-Z yarn reinforcement. The developed regression model was considered as a suitable and viable tool to predict the tensile properties of the composite structures.

Development Of Multistitched Three-Dimensional (3D) Nanocomposite And Evaluation Of Its Mechanical And Impact Properties

“…Textile preforms are made by weaving, braiding, knitting, stitching, and nonwoven techniques [3]. A stitching in textile composites improved the tensile and flexural properties of the two-dimensional (2D) woven composite through the distribution of the stress among the layers by the load transfer of stitching yarn [4].…”

Off-Axis Tensile Behavior of Multistitched Composites

“…A wide range of techniques can be used to fabricate textile preforms for composites including weaving, knitting, braiding, stitching, and various nonwoven production methods (Bilisik and Yilmaz, 2012). Stitching has been shown to increase the fracture resistance of the composite by changing the crack propagation pattern, that is, the crack is forced to follow a more tortuous route between stitches, absorbing a large amount of energy in the process (Mouritz, 2004).…”

Warp–weft directional bending properties of multistitched biaxial woven E-glass/polyester nano composites

“…Textile preforms are made by weaving, braiding, knitting, stitching, and nonwoven techniques and they can be chosen generally according to end-use requirements [5].…”

“…Textile structural composites have been used in various industrial, ballistic, and medical areas due to their high stiffness-to-weight ratio, delamination free, and damage tolerance properties [1][2][3][4]. Textile preforms are made by weaving, braiding, knitting, stitching, and nonwoven techniques and they can be chosen generally according to end-use requirements [5].…”