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crumple zones
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Crumple Zones
Cyber Science
What is Crumple Zone?
Introduction
Auto safety has come a long way in the last few decades, and one of the most effective innovations is the crumple zone. Also known as a crush zone, crumple zones are areas of a vehicle that are designed to deform and crumple in a collision.
Force Impact
First
Part
Whenever a car is involved in a crash, intense kinetic forces are at work. A given amount of force is present during any crash. The actual numbers vary based on the speed and mass of the car and the speed and mass of whatever it hits.
Force Impact
Crumple zones accomplish two safety goals. They reduce the initial force of the crash, and they redistribute the force before it reaches the vehicle's occupants.
Two Safety Goals
How do crumple zones work?
Second
Part
Crumples zones aim to create a buffer around the area containing the driver and passengers in a vehicle, called the “safety cell.” The most basic designs include segments that bend, deform or collapse, absorbing energy during impact.
The Inventor of the Crumple Zone
Third
Part
Béla Barényi was an engineer and inventor who spent most of his career working for Daimler-Benz. His name appears on more than 2,500 patents. One of those patents, issued in 1952, explains how a car could be designed with areas at the front and rear built to deform and absorb kinetic energy in an impact.
Why do you think some cars are designed in such a way that the front and rear crumple zones are made of less rigid materials?
Fourth
Part
I believe that the cars are constructed with less rigid front and rear crumple zones because if those hard materials collide with something, they would decelerate fast, resulting in a lot of force. Crumple zones around those portions allow the less rigid materials to take the first impact. Crumple zones, along with other automotive safety systems, are responsible for hundreds of thousands of lives being saved each year.