@ARTICLE{Asan2025:i8992,
	author="{Asan, Ahmet Murat}",
	title="{Numerical Investigation of Ballistic Performance of Stitched and Unstitched Carbon Fiber-Reinforced Composite Plates}",
	year="2025",
	type="artykuł naukowy",
	language="en",
	journal="{Journal of Engineering 360}",
	issn="3071-7507",
	volume="1",
	number="1/25",
	pages="40--45",
	url="https://journalofengineering360.ajp.edu.pl/article/554338/en",
	keywords="Ballistic performance; CFRP; Finite element analysis; stitch",
	abstract="{This study numerically investigates the ballistic behavior of stitched and unstitched carbon fiber-reinforced composite plates using
the finite element method. Simulations were performed under high-velocity impact conditions using ANSYS Workbench, with
a projectile velocity of 350 m/s and appropriate boundary constraints. The results reveal that stitched composites exhibit higher
values in internal (4.90 × 10⁵ J) and contact energy components (5.56 × 10⁵ J) compared to unstitched composites (4.22 × 10⁵ J
and 1.19 × 10⁵ J, respectively). This indicates that stitching enhances load transfer at the fiber–matrix interfaces and facilitates
more effective distribution of the absorbed energy through structural deformation. Although unstitched composites show slightly
higher total energy absorption (5.74 × 10⁶ J) than stitched ones (5.52 × 10⁶ J), a significant portion of this energy remains in
the form of kinetic energy (5.32 × 10⁶ J vs. 5.27 × 10⁶ J), contributing less to structural absorption. Consequently, while unstitched
composites demonstrate a more brittle behavior, stitched composites dissipate energy more effectively through internal
deformation and contact mechanisms, resulting in superior ballistic performance. The findings provide valuable insights for
the design of impact-resistant composite structures in defense and aerospace applicationS}",
}