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
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Rajnath Singh chairs IGoM meet, urges constant vigil over West Asia crisis
New Delhi (PTI): Defence Minister Rajnath Singh on Thursday emphasised the need for round-the-clock monitoring of the West Asia conflict and called for a calibrated response to deal with any eventuality to ensure that national interests remain protected.
Singh made the comments while chairing a high-level meeting of the Informal Group of Ministers (IGoM) set-up to monitor the situation in West Asia.
The meeting was attended by External Affairs Minister S Jaishankar, Finance Minister Nirmala Sitharaman, Oil Minister Hardeep Singh Puri, Power Minister Manohar Lal, Chemicals and Fertilizers Minister J P Nadda, Consumer Affairs Minister Prahlad Joshi and Minister of Railways, Information and Broadcasting, Electronics and Information Technology Ashwini Vaishnaw.
In view of the "uncertain situation", the defence minister underlined the importance of round-the-clock monitoring of the situation and the need to respond in a calibrated manner to deal with any eventuality, an official readout said.
He stressed on the need to leave no stone unturned to ensure that the people of the country face the minimum effect of the conflict, it said.
It was the second meeting of the IGoM after it was set up last month.
The IGoM was apprised of the measures being taken by the government in the wake of the ongoing West Asia conflict, Singh said on social media.
"We also deliberated upon the next steps to be taken by the government to mitigate any adverse impact arising due to the ongoing conflict," he said.
The defence ministry said in the readout said, "In the meeting, the seven empowered groups of secretaries briefed the IGoM on the steps being taken to tackle the situation."
"The IGoM was apprised about measures undertaken by the Ministry of Finance to address concerns arising due to global trade disruptions and provide relief and support to the industry, especially manufacturing, and bolster investor confidence," it said.
It listed measures including notification issued on Wednesday on full customs duty exemption on 40 critical petrochemical products till June 30.
The ministry also mentioned announcement of a special one-time relief measure for eligible units in SEZs to sell manufactured goods in Domestic Tariff Area (DTA) at concessional customs duty rates to be effective from April 1 to March 31.
It also noted another notification issued by the Department of Revenue clarifying that the provisions of GAAR (General Anti Avoidance Rules) will not be invoked in respect of investments made prior to April 1, 2017.
"These measures will reduce cost pressures on downstream sectors including textiles, packaging and pharmaceuticals, facilitate supply stability in the country and provide requisite clarity for investors contemplating investments in India," the readout said.
Defence Minister Singh appreciated the government's decision to impose a 25 per cent cap on the monthly increase in aviation turbine fuel prices for domestic operations, with effect from April 1.
This step will help protect the people from sudden increase in fares, he said.
The government has accorded highest priority to domestic LPG supply, with refinery production enhanced to fully meet consumption requirements, according to the readout.
"The IGoM was informed that there have been no reports of dry-out at LPG distributorships, and delivery of domestic LPG (liquefied petroleum gas) cylinders continues as per the normal schedule. The temporary supply concerns arose due to instances of hoarding and black marketing, which triggered panic buying in certain areas," it said.
The ministers were informed that strict enforcement action is being undertaken, with raids being carried out across multiple states and Union territories to curb hoarding and black marketing of LPG, the ministry said in the readout.
Action has also been taken against some LPG distributors who engaged in malpractices, it said.
"To support migrant labour and low-consumption households, the government is ensuring adequate availability of 5 kg free trade LPG cylinders, and since March 23, over 4.3 lakh such cylinders have been sold. Special focus is being given to states where demand is higher," it said.
The IGoM was apprised that industrial requirements dependent on commercial LPG are being met, with over 80 per cent of pre-crisis supply levels being maintained to ensure continuity of operations.
"Special meetings have been held with ministries and stakeholders of different industries to understand their demand and meet their needs. Oil PSUs are ensuring continued supply of Auto LPG across the country," the readout noted.
"However, some supply constraints are being faced by private operators due to their procurement challenges, which is why lines are being observed at PSU auto LPG pumps. Wherever the autos are dual feed and can use petrol, they are being encouraged to use petrol," it said.
