Experimental study on the morphology of three dimensional multilayered interlaced basalt woven reinforcements for composites

Abstract

This study explores and discusses the morphology and microstructure of three-dimensional (3D) multilayered interlaced woven reinforcements for composites. Moreover, this study aims to analyze the differences in the internal geometry of woven reinforcements with different frequency and distribution of connecting points in multilayered woven reinforcement made from basalt fibers. X-ray microcomputed tomography images and the NIS-elements software were used to analyze the microstructure of five different fabrics with connecting points ranging from 1 cm × 1 cm to 5 cm × 5 cm. In the conclusion, the three basic objectives of the study are evaluated: (1) the difference between the upper and lower fabrics in a two-layer reinforcement with difference in the distribution and frequency of connecting points in the fabric area, (2) the shifting of horizontal and vertical fabric layers and mean skewness of contour functions of all tested reinforcements, (3) the thickness, packing density, and volumetric porosity of reinforcements to predict composite behavior during composite preparation.