Crumple Zones: SEMI-RIGID Rigid Barriers
FLEXIBLE BARRIERS
Flexible barriers such as wire rope safety barriers are effective at stretching and absorbing the force of a crash. The posts bend close to the ground and the ropes release from the post assisting the diversion of excessive force and slowing down the vehicle. The flexible barriers increase the time of the crash and therefore creating a smaller deceleration and then making the total force of the crash smaller. This total force being less puts less stress on the body and allows for an increase in likelihood of surviving an accident.
SEMI-RIGID BARRIERS
Semi rigid barriers such as energy absorbing guard rails are like the flexible barriers as they don’t completely stop the crash but only absorb force from it. These barriers are designed to redirect the car back onto the road with limited damage done to the rails or the car / people inside. The rail absorbs energy as it bends and flexes when hit by a vehicle and increases the time of the crash therefore reducing the velocity resulting in a lower energy and force filled crash. This absorption of energy and force creates a safer crash and increases chances of surviving the accident.
RIGID BARRIERS
Rigid barriers are designed differently to …show more content…
This zone is the part that is hit and crushed before the passengers in the car. These crumple zones allow for an increase in time over the distance of the crash as the crumple zone gets crushed in the crash. This increase in time creates a slower velocity for the car making the energy transferred less and making the impulse of the crash smaller. This decrease in energy transfer and impulse creates a safer crash for the passengers as the energy is transferred to the car and not into them. This increases the safety of the crash majorly as without the crumple zone all the force would be going straight into the
Flexible barriers such as wire rope safety barriers are effective at stretching and absorbing the force of a crash. The posts bend close to the ground and the ropes release from the post assisting the diversion of excessive force and slowing down the vehicle. The flexible barriers increase the time of the crash and therefore creating a smaller deceleration and then making the total force of the crash smaller. This total force being less puts less stress on the body and allows for an increase in likelihood of surviving an accident.
SEMI-RIGID BARRIERS
Semi rigid barriers such as energy absorbing guard rails are like the flexible barriers as they don’t completely stop the crash but only absorb force from it. These barriers are designed to redirect the car back onto the road with limited damage done to the rails or the car / people inside. The rail absorbs energy as it bends and flexes when hit by a vehicle and increases the time of the crash therefore reducing the velocity resulting in a lower energy and force filled crash. This absorption of energy and force creates a safer crash and increases chances of surviving the accident.
RIGID BARRIERS
Rigid barriers are designed differently to …show more content…
This zone is the part that is hit and crushed before the passengers in the car. These crumple zones allow for an increase in time over the distance of the crash as the crumple zone gets crushed in the crash. This increase in time creates a slower velocity for the car making the energy transferred less and making the impulse of the crash smaller. This decrease in energy transfer and impulse creates a safer crash for the passengers as the energy is transferred to the car and not into them. This increases the safety of the crash majorly as without the crumple zone all the force would be going straight into the