Discover the science behind Kevlar; The ultimate synthetic fibre for bullet proof protection
Kevlar is a high-strength, lightweight synthetic fiber that is used in a variety of applications, including bulletproof vests. Kevlar is made from poly-paraphenylene terephthalamide, which is a polymer that is produced from terephthalic acid and p-phenylene diamine. Kevlar has a high tensile strength, which means that it can withstand a great deal of force before breaking. It is also very resistant to heat and chemicals. These properties make Kevlar ideal for use in bulletproof vests.
When a bullet hits a Kevlar vest, the fibers of the vest absorb the energy of the bullet. The fibers are arranged in a way that allows them to interlock and trap the bullet. This prevents the bullet from penetrating the vest and injuring the wearer. The number of layers of Kevlar in a vest will determine the level of protection that it provides. A vest with more layers will be able to stop a higher-powered bullet.
Kevlar bulletproof vests are very effective at stopping bullets. However, they are not 100% effective. In some cases, a bullet may be able to penetrate a Kevlar vest. This is more likely to happen if the bullet is powerful or if it hits the vest at a certain angle. Kevlar vests are also not effective against knives or other sharp objects.
Despite their limitations, Kevlar bulletproof vests are an important safety device for law enforcement officers, military personnel, and other individuals who are at risk of being shot. They can help to save lives and prevent serious injuries.
In addition to bulletproof vests, Kevlar is also used in a variety of other applications. It is used in body armor, helmets, gloves, and other protective gear. Kevlar is also used in high-performance tires, racing sails, and other applications where strength and lightweight are important.
Kevlar is a versatile material with a wide range of applications. It is a valuable tool for protecting people and property.
Here are some additional benefits of using Kevlar in bulletproof jackets:
►Kevlar is lightweight and comfortable to wear. This makes it ideal for use in situations where the wearer needs to be able to move freely, such as law enforcement officers and military personnel.
►Kevlar is durable and can withstand repeated use. This makes it a cost-effective investment for organizations that need to provide their employees with body armor.
►Kevlar is available in a variety of colors and styles. This allows organizations to choose a vest that is appropriate for their needs and the needs of their employees.
Overall, Kevlar is an excellent material for use in bulletproof jackets. It is strong, lightweight, durable, and available in a variety of colors and styles. Kevlar bulletproof jackets can provide a high level of protection for law enforcement officers, military personnel, and other individuals who are at risk of being shot.
Girish Linganna
Aerospace & Defence Analyst
Let the Truth be known. If you read VB and like VB, please be a VB Supporter and Help us deliver the Truth to one and all.
FIDE Women's World Cup final: Humpy draws with Divya in first game
Batumi (Georgia), Jul 26 (PTI): Young Indian International Master Divya Deshmukh held her nerves to hold stalwart Koneru Humpy to a draw in game 1 of the FIDE Women's World Cup final, with both players having their share of opportunities to take the lead here on Saturday.
The draw with black means Humpy, the two-time World Rapid champion, holds a slight edge going in the second and final game under the classical chess rules in the two-game mini-match, and should the deadlock continue, games of shorter duration will be played to determine the winner.
Humpy employed the Queen's gambit accepted as black and it turned out to be a pretty fascinating game right out of the opening as Divya, 19, came up with a piece sacrifice early to deny the black king the right to castle.
Humpy was the first to err and, according to computers, Divya had things under control on the 14th move. However in her bid to recover the extra material, the Nagpur girl, who has secured a place in the Candidates tournament with her sterling performance here, missed a promising continuation.
What followed the exchange of all minor pieces and the ensuing queen and rook endgame gave enough counter play to both players. The game was eventually drawn after Humpy sacrificed her rook to force perpetual checks.
"The game saw an extremely sharp battle with the game ending in a draw in 41 moves. On move 7, Divya made her aggressive intentions clear by offering another pawn,
which looked like home preparation. Humpy made a practical decision of refraining from taking the pawn and a balanced position was reached by move 10 by white," said Grandmaster Pravin Thipsay, an Arjuna awardee and the first Indian to get a chess Grandmaster norm.
"However, instead of developing the undeveloped Knight, Humpy retreated the centralised Knight on move 10, giving huge positional advantage to Divya. Divya could have gained huge positional advantage on the 12th move by moving a rook. However, she chose to play for King side attack by sacrificing a piece instead.
"Humpy, too, erred at this stage and instead of moving the King to Queen side, moved it to the King side. Divya, on move 14, could have obtained a crushing attack by threatening a mate by developing her Queen. Instead she chose to exchange a pair of Bishops first, which enabled Humpy to defend her King by returning the piece," said Thipsay.
"Players thus reached a balanced Queen and two Rooks ending. Divya continued to play ambitiously and tried to attack Humpy’s King but the latter defended accurately and the game was drawn in 41 moves by perpetual check," he added.
In the play-off for the third place, Chinese players Zhongyi Tan, the former women's world champion and top seed Lei Tingjie also decided to split points out of a Queen’s gambit declined game.
The opening raised visions of a close contest between the two but having been knocked out of title race in the previous round, none of them wanted to take any huge risk. It was still a middle game when the players shook hands.
With the top two positions sealed for the Indians, the berth to the next Candidates is also assigned, while the player finishing third will also get an entry to the premier event scheduled for 2026.
Results: Divya Deshmukh (Ind) drew with Koneru Humpy (Ind); Zhongyi Tan (Chn) drew with Tingjie Lei (Chn).
