International Journal on Science and Technology

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Theoretical Testing of Varying Material Mass Impact on Ballistic Performance of UAV-Deployed Spherical Payloads

Author(s) Mr. Sreehari Kambrath, Ms. Sneha P.S
Country India
Abstract This study presents a theoretical analysis into the influence of material mass on the ballistic performance of spherical payload samples of three main aerospace-grade materials, including AL 8090, Ti-6Al-4V, Zircaloy-4 deployed from unmanned aerial vehicles (UAVs) across an operational altitude range of 30 to 1000 meters. The diameter of the spherical payload bomb for selected materials are taken as 260 mm for better idealization and area uniformity. The analysis employs classical free-fall dynamics and numerical integration techniques to evaluate key impact parameters such as time of descent, velocity, and momentum. The impact time computation is executed through a simple python-based program for avoiding the complexities in calculation. Based on the computed magnitudes, different aerospace materials are assessed and comparatively classified according to their suitability for various applications, including military, safety, and hybrid payload delivery systems. The study outcomes indicate that material selection significantly affects descent time, terminal velocity, and drag efficiency, with denser materials exhibiting lower drag to weight ratios and enhanced momentum characteristics. The findings support optimized material choice for applications in military delivery systems, hybrid fire suppression payloads, and safety modules deployed via UAV platforms.
Keywords ballistic performance, aerospace materials, UAV payload deployment.
Field Engineering
Published In Volume 16, Issue 2, April-June 2025
Published On 2025-06-30
DOI https://doi.org/10.71097/IJSAT.v16.i2.6751
Short DOI https://doi.org/g9r8fv
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