Understanding the amount of penetration or damage done by the indentor in the specimen is important. When glass fibers are used, light is projected on the impacted specimen to measure the area of damage or penetration, but carbon fiber used in this work, such as glass fiber, is not transparent. Hence, the X-ray image of the impacted specimen was inserted into autocad software and the damage area was plotted by drawing free form curve along the damage boundary. From the closed curve, the area of penetration was measured using area measurement tool in autocad. The measurements are shown in Table 2.
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