as you know the bullet has not that less area of contact
so if you block the speeding bullet with a bullet shield covered with cloth. Will cloth tear apart or remain the same
Answers
Answer:
Explanation:
This is no ordinary metal. Created by melting aluminum around hollow metal spheres, composite metal foam is 70% lighter than sheet metal and can absorb 80 times more energy than steel. It is fireproof, radiation-resistant, and even bulletproof.
Researchers at North Carolina State University recently formulated and tested a metal foam so strong that it shatters armor-piercing bullets upon impact, according to a paper recently published in Composite Structures.
The metal foam can stop a bullet at a total thickness of less than an inch, according to lead researcher Afsaneh Rabiei. ”Our material is the strongest one yet. There’s nothing like it on the market,” she says.
The porous material absorbs energy better than sheet metal due to the air bubbles created by the hollow metal spheres embedded in it. When an object moving at high speed—like a bullet—hits it, the air pockets collapse like bubble wrap. This action absorbs the energy of the projectile, rather than transferring the energy through the material to the other side.
“When a bullet hits something, normally it penetrates into it. But since the bullet cannot penetrate our material, it hits it and bounces off. The force that our material applies to the bullet breaks it,” Rabiei says. “In our experiment, we found that the bullet totally shattered.”