2025

Journal of Engineering 360

Rocznik: 2025 | Tom: 1 | Numer: 1/25

artykuł naukowy

angielski

EN 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

40 - 45

https://journalofengineering360.ajp.edu.pl/article/554338/en

CC BY-NC (uznanie autorstwa - użycie niekomercyjne)

otwarte czasopismo

ostateczna wersja opublikowana

11.2025

w momencie opublikowania

5