International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 05 | May 2024
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p-ISSN: 2395-0072
Impact Analysis of composite material for bulletproof vests Mohd Nazim1, Mridul Anand2, Parveen Prajapati3 Delhi Technological University, Rohini Delhi 110042 ---------------------------------------------------------------------***--------------------------------------------------------------------Composite materials represent an innovative class of Abstract - This project addresses the growing engineered materials formed by the amalgamation of two or importance of bulletproof vests in safeguarding more constituent materials, each possessing distinct individuals within high-risk occupations, particularly properties. This strategic combination is tailored to harness law enforcement and military personnel. Bulletproof the strengths of each component, yielding performance vests serve a dual purpose as both a barrier and an characteristics that surpass those of individual materials energy absorber, mitigating the impact of bullets and used in isolation. Within the realm of bulletproof vests, the protecting users. Our study employs the Finite Element integration of composites has ushered in a transformative Method (FEM) to conduct an impact analysis, focusing era, fundamentally altering the landscape of protective gear. on Three primary composite materials used in This advancement has facilitated the development of lightweight, flexible, and exceptionally effective body armor, bulletproof vests: Aramid , Ultra-high-molecular weight marking a paradigm shift in the approach to personal polyethylene (UHMWPE) , ceramic . protection.
Key Words: Impact analysis, Bullet proof vest, Composite materials, Aramid, UHMWPE, Ceramic.
1.2 Composite Material Composite materials, comprising two or more distinct phases, are strategically combined to attain specific properties such as strength, stiffness, and toughness. In the realm of bulletproof vests, these materials form protective layers capable of absorbing and distributing the impact of a bullet. Aramid fibers, Kevlar, and ultra-high molecular weight polyethylene (UHMWPE) fibers are widely employed in bulletproof vests. Aramid fibers, known for their high strength to-weight ratio, offer exceptional ballistic protection, while UHMWPE fibers, with their lightweight nature, provide excellent ballistic defense. Kevlar is incredibly strong, about five times stronger than steel by weight. these materials have demonstrated superior protective capabilities in various studies.
1.INTRODUCTION 1.1 Etymology In a dynamically changing world where prioritizing personal safety is paramount, the continuous advancement of effective protective gear has emerged as a pivotal focus of research. Within the spectrum of protective equipment, bulletproof vests stand out as indispensable guardians, playing a critical role in ensuring the safety and well-being of law enforcement personnel, military operatives, and individuals engaged in high-risk professions. Bulletproof vests, alternatively referred to as ballistic vests or body armor, are meticulously crafted to offer dependable protection against ballistic threats, including bullets and projectiles. These exceptional pieces of equipment boast a storied history, undergoing continuous evolution to achieve enhanced characteristics such as greater lightweight design, flexibility, and the capacity to withstand the impact of progressively powerful firearms.
Aramid fibers, derived from synthetic polymers containing amide groups, boast high tensile strength, a superior modulus, and exceptional resistance to abrasion, heat, and chemicals. Their lightweight design enhances their ballistic protection against high-velocity projectiles. On the other hand, UHMWPE fibers, crafted from extended polyethylene molecules, exhibit an impressive strength-toweight ratio, excelling in strength for their weight. These fibers are highly resistant to abrasion, chemicals, and UV radiation, providing robust ballistic protection against highvelocity projectiles.
The efficacy of bulletproof vests is intricately tied to the materials employed in their construction. Early iterations of these vests featured thick layers crafted from materials like silk, leather, and even metal plates. Nevertheless, the landscape of body armor underwent a transformative shift with the advent of composite materials, marking a substantial leap in protective technology. This innovation not only elevated the level of safeguarding but also resulted in a remarkable reduction in both weight and bulkiness, redefining the standards of modern body armor.
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Impact Factor value: 8.226
1.3 Materials Properties Comparison of some properties of Aramid and UHMWPE fibres and ceramic
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