How does a grenade work? 3D Explanation
In this 3D explanation, we’ll show you how a Grenade works using detailed 3D visuals. At the end of the post, you’ll find a link to our 3D explanation video on our YouTube channel.
The Grenade is one of the most significant weapons used in modern warfare. It played a major role during both World Wars and is still actively used in wars and combat situations today. Over time, several types of grenades have been developed, each serving a unique purpose—whether to kill, injure, or disable the enemy.
Among these, the most commonly used in battles are Time-delay fragmentation grenades.
In this blog, let’s take a detailed look at how Time-delay fragmentation grenades work, with the help of our 3D animation.
Structure of a Grenade
How does a Grenade work? 3D Explanation –Parts (See IMAGE-1)
The outer shell of a fragmentation grenade is made of serrated cast iron. These serrations help it to break into deadly fragments upon explosion.
The inside of the grenade is filled with explosive material—commonly a mixture of TNT and RDX.
There is a filling hole through which the explosives are inserted into the grenade.
Safety Mechanism
This is the safety pin (IMAGE-2). Its purpose is to hold the striker lever (also called the spoon) in place.
As long as the striker lever is held down, the grenade will not explode.
When the safety pin is removed, the spring-loaded striker lever is released and flips outward.
However, if you keep holding the striker lever down even after removing the pin, the grenade will still not explode.(See IMAGE-3)
How does a Grenade work? 3D Explanation of Internal Mechanism.
Let’s now look inside the grenade to understand how a grenade works, exploring the explosion mechanism in this 3D explanation.
You can see a loaded spring, a striker, and a striker holder (IMAGE-4)
Once the safety pin is pulled, the striker lever moves outward.(IMAGE-5)
The spring expands and pushes the striker downwards.(IMAGE-6)
The striker hits the percussion cap—a small component filled with shock-sensitive material.
The impact causes a spark, which ignites the chemical delay fuse inside the grenade.
This delay fuse burns for about 4 to 5 seconds, giving the user a short window to throw the grenade.
At the end of this fuse is a detonator—a capsule containing more sensitive explosive material.
When the flame reaches the detonator, it sets off a chain reaction, igniting the main charge and causing the grenade to explode violently.
The explosion breaks the serrated shell into deadly fragments, creating high-pressure shrapnel that causes injuries or death within its blast radius.
Real-Life Use of Grenades in Modern Warfare
Grenades are still used in modern-day combat and military operations. From urban warfare to jungle missions, they play a vital role in clearing enemy positions, destroying bunkers, or creating diversions. Specialized forces like commandos and SWAT teams also use grenades during tactical missions. Understanding how they work can offer insight into the complex technology behind battlefield tools.
Civilian and Training Applications
While grenades are mainly used in war, practice grenades are used for military training purposes. These dummy versions mimic the weight and mechanics of real grenades but without the explosive charge, allowing soldiers to learn safe handling and throwing techniques.
A Major Drawback
Although time-delay grenades are highly effective, they come with a notable drawback.
Due to the short delay time, the enemy might still have a chance to react—for example, they might throw the grenade back.
If that happens, the original thrower can be injured or killed by their own grenade.
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How does Grenade work? ENGLISH
How does Grenade work ? MALAYALAM