Here is an explanation of how a crumple zone works in a new volvo. Next time you re thinking of upgrading your vehicle consider going for an option with enhanced safety features.
Side view of a crashed car showing the crumple zones.
Car crumple zone design. Crumple zones they increase the time taken to change the momentum of the driver and passengers in a crash which reduces the force involved. That s why cars are designed with a rigid strong frame enclosing the occupants with crumple zones in the front and rear. You can t make an entire car a crumple zone because you don t want the people inside it to crumple also.
A misconception about crumple zones sometimes voiced citation needed is that they reduce safety for the occupants of the vehicle by allowing the body to collapse therefore risking crushing the occupants. Sports car platform basic design principles. A car traveling at 30 0 miles per hour 13 4 m s runs into a rigid stone wall.
Force reduction and redistribution is accomplished inside the passenger compartment through the. Gorillaphysics grade 9 and a physics 5 117 views. 26 may 2009 15 12 utc.
In fact crumple zones are typically located in front of and behind the main body of the car which forms a rigid safety cell compacting within the space of the engine compartment or. This has allowed automakers to play more with the design and materials used on the deformable parts of modern cars so crumple zones are here. Assume the car s crumple zone results in a stopping distance of 0 60 m.
Assume that the area of contact of seat belt and body is 4 0 cm 30. Crumple zones are areas of a car that are meant to crush when hit and absorb the impact during a crash most crumple zones incorporate a honeycomb design crumple zones work best when they are spread over an area crumple zones distribute the force away from the passengers in the car. 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 this absorbs some of the energy of the impact preventing it from being transmitted to the occupants.
Crumple zones and car safety features gcse and a level physics revision duration. Cm 0 012 m 2. Assume that the 75 kg driver is wearing a seat belt.
How crumple zones work. Crumple zones in high performance vehicles often follow a honeycomb design which is stiff in normal conditions but can collapse and crumple in a collision. It is a good example of how the passenger is protected.