Composite materials have shown their superior performance over metals in many applications, such as in aerospace, automotive, and where high mechanical strength combined with low weight are required in general. Composites consist of a combination of materials that are mixed together to achieve specific structural properties. Normally, the components can be physically identified, as they interface with one another. A matrix supports the fibers and bonds them together in the composite material. The matrix transfers any applied loads to the fibers and keeps them in their position, thus giving resistance to the composite and determining its maximum service temperature. The properties of the composite are generally superior to those of the individual materials from which it is obtained, but its behavior under impact has been an important concern in many advanced engineered structures and components [12]. The potential application of composites in both low and high technology applications offers many advantages but suffers from shortcomings such as their weak impact resistance. Understanding the behavior of composites during impact is thus a crucial point to be considered for the improvement of the material properties [13]. The material's behavior towards runaway debris or objects that fall on its top surface determine the durability of the material, considering the residual strength depends on the damaged area upon impact [14]. A composite material is made of fibers embedded in a matrix, which is generally laminated with fibers oriented in alternating directions to give the material strength and stiffness [15]. For the construction of building structures, woven fabrics are usually the choice to save weight, minimize resin void size, and maintain fiber orientation during the fabrication process. In general, impact events cause combinations of damages [16]. The resulting damage may include significant fiber failure, matrix cracking, delamination, and debonded elements. Damage caused by low-energy impact is more contained but may also include a combination of broken fibers, matrix cracks, and multiple delaminations. Thus, it is essential to study the fiber orientation and the overall damage in fiber at the composite after impact under mechanical load [17]. Based on this assumption, a study was carried out on fiber reinforced geopolymer composite under mechanical load. The inner view of the composite on the point of structural integrity was carried out by investigating the damage of the fiber composite by the micro computed tomography method after mechanical impact. Although theoretical predictions about fiber orientation and porosity are presented, their combination with an experimental approach using micro computed tomography are not thoroughly addressed [18]. In a previous work, impact tests were carried out with a drop weight method on the surface of the composite material, and the residual strength of the composite in correlation with damage areas was explained [19]. Composites have complex characteristics and the presence of defects or damage will decrease their strength, thus initiating their ultimate failure [20]. In this work, we studied geopolymer composites with various fiber reinforcements, namely carbon, E-glass, and basalt. One general outcome (and the outcome of the present study) is the need to perform a detailed observation of the sample inner surface quality without any destructive changes. The geometrical defects that develop due to impact inside the fabric reinforced composite may play a determining role in the strength and life of the composite. The internal defects include fiber pull out, misalignment of the fiber, cracks, and damage to the matrix. In this work, we addressed the detailed statistical characterization of geometrical defects in the impacted fabric reinforced composite with 3D images captured by \(\mu\)CT to visualize the interior structural details with high resolution on a scale of interest for damage evaluation of the composite [21; 22].