Advancements in Bulletproof Vest Technology: A Comprehensive Review of Materials, Design, and Applications | Chapter 3 | Science and Technology: Developments and Applications Vol. 10

This review paper examines the evolution, materials, and technological advancements in bulletproof vests, a critical component of protective clothing. Bulletproof vests have been developed to safeguard individuals, primarily in military, law enforcement, and civilian sectors, against ballistic threats. The paper explores the key materials used in bulletproof vests, such as aramid fibers, polyethylene, and advanced composite materials, and analyzes the improvements in design and comfort. Additionally, the paper discusses the regulatory standards, challenges in development, and future directions for enhancing the effectiveness and usability of bulletproof vests. It is designed to safeguard individuals from ballistic threats. This paper provides a comprehensive review of bulletproof vest materials, their technological advancements, and their diverse applications in law enforcement, military, and civilian use. The study examines the evolution of bulletproof vests, analyzing the impact of high-performance fibers such as aramid-based Kevlar and Twaron, as well as Dyneema, which is an ultra-high-molecular-weight polyethylene fiber. The review also explores recent developments in nanotechnology, graphene-based materials, and liquid armor. Additionally, the paper discusses the ergonomic and environmental considerations in vest design, offering insights into future trends in protective clothing. The research also explores legal and regulatory frameworks governing the development and distribution of bulletproof vests, ensuring compliance with global safety standards.

 

Author (s) Details

 

Krishnaveni Vasudevan
Department of Fashion Technology, Kumaraguru College of Technology, Coimbatore – 641049, Tamil Nadu, India.

 

Kavya.D
Department of Fashion Technology, Kumaraguru College of Technology, Coimbatore – 641049, Tamil Nadu, India.

 

Devipriya.V
Department of Management Studies, KSR College of Engineering, Tiruchengode – 637214, Tamil Nadu, India.

Please see the book here:- https://doi.org/10.9734/bpi/stda/v10/5154

Influence of Welding Process on Mechanical and Corrosion Behavior of AA2519 Aluminium Alloy | Chapter 10 | Technological Innovation in Engineering Research Vol. 7

 A new alloy, designated AA2519, has replaced AA2219 Al in an effort to increase its strength-to-weight ratio and ballistic resistance. In general, the main issues that arise during welding are the production of oxide layers, solidification cracking, and porosity. Given the foregoing, it is proposed for the current effort to examine how the welding process affects mechanical qualities, corrosion behaviour, and microstructural changes. The current work combined friction stir welding (FSW) and gas tungsten arc welding (GTAW) to weld 10mm thick plates of the AA2519 Al-alloy. Potentiodynamic polarisation tests were performed in the aqueous solution of 3.5 percent NaCl in an aerated atmosphere in order to evaluate the pitting corrosion behaviour. Investigations on exfoliation corrosion utilising the EXCO solution are carried out for various time lapses. The study shows that AA2519 FS welds outperform GTA welds in terms of mechanical and corrosion resistance. In order to provide the mechanism for a better combination of hardness and corrosion resistance, undissolved strengthening precipitates such as Al2CuMg, Al3Zr, and Al3Ti were developed. These fortifying precipitates provide the insulation pathways for the production of galvanic cells between the Al2Cu and -Al matrix.

Author(s) Details:

G. Siva Prasad,
Department of Metallurgical Engineering, Andhra University, Visakhapatnam, Andhra Pradesh, India.

K. Srinivasa Rao,
Department of Metallurgical Engineering, Andhra University, Visakhapatnam, Andhra Pradesh, India.

G. Madhusudhan Reddy,
Defence Metallurgical Research Laboratory, Hyderabad, India.

Please see the link here: https://stm.bookpi.org/TIER-V7/article/view/7926