Cars Crash Tests: How To

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In today’s world in the development of the car can not do without computer simulation, but no computer can not detect potential weaknesses in the security of the machine. Identify any weaknesses in the model can only be “combat” conditions, so major automobile giants annually smash a few hundred cars to make sure they are secure. All known avtobrendy have sites for comprehensive test their products for strength, and have independent laboratories.

Today, we are accredited by the example of the German ADAC crash-center look at how pass crash tests cars.

Cars Crash Tests: How To:

Frontal encounter with an obstacle machine leads in the number of victims. Unfortunately, even the stringent tests on both versions (NHTSA and EuroNCAP) largely artificial, and often do not provide an objective assessment of safety. In particular, the car tested only at a certain speed, and the tests do not provide an answer, which is the strain at higher or lower speeds. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

Also, such tests do not consider the situation of a passenger car collisions with large vehicles: buses, tractors, trucks.

Mannequin in the analysis. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

Form a complete picture of the reliability of a particular model only with the help of numerous frontal and side collisions. For example, before you go on sale, Mercedes car should definitely go a whole 28 safety tests. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

First safety tests looked quite monotonous: two cars one model simulated frontal collision at a speed of 55km / h with an overlap of 50%. Today testers are increasingly faced each other machines of different classes, so, for example, «Volvo» conducted a simulation of collision between a passenger jeep S40 and XC90.

Final preparations for the crash test. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

Often, the program includes tests for safety of a passenger car collision with a cargo vehicle at a speed of 56 km / h with an overlap of 50%. In most cases, passenger car body is under multi-ton machine, reducing the chances of surviving passengers to zero. These tests allowed to save a lot of lives through the development and implementation of the so-called design underrun FUPS truck. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

But the head-on collision can not identify all the design flaws of the test model, many of them can only be found in a side impact. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

According to statistics, only 2% of accidents car overturned, however, almost half the revolution becomes the cause of death of passengers. Most susceptible to coups gigs and big SUVs with high center of gravity. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

Interestingly, the crash tests are not always carried out at high speeds. For example, safety fuel tank is checked as follows: truck with a load on the rear bumper hit machine overlap of 40% at 15-40 km / h (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

Special tests carried out vital elements design – seats and seat belts. For this purpose there is a special booth with a dummy, which accelerates to the desired speed and then slow down dramatically.

Dummies installed in the car. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

Euro NCAP test runs in 4 stages. You should first frontal impact at 64 km / h with 40% overlap deformable overlap. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

After the test the safety of the machine side: auto attacks truck weighing 950 kg. Then test confronted with an iron pillar, 254 mm in diameter at 29 km / h

Crash Centre ADAC. Everything is ready to test the safety of the vehicle. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

The fourth paragraph of the test – the test machine safety for pedestrians: mannequin knock at a speed of 40km / h (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To
Today we follow the leader in the number of victims – a frontal assault. Euro NCAP test is carried out at a speed of 64 km / h with an overlap of 40%. Let’s go! (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

Time of the collision. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

(Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

(Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

We look at a collision speed of 64 km / h. Mannequins wearing work airbags. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

And what happens in a collision at a higher speed when drivers ignore safety belts?

French experts have long ultrafast camera filmed the process of collision at a speed of 80 km / h with a fixed obstacle. Inside were mannequins with sensor, in the degree of trauma that would be from living people. Mannequins are not wearing, airbag disabled. The results are shocking:

  1. Through 0.026 seconds : bumper cars after hitting pressed. Power beyond the car’s weight by 30 times, retards its motion about the line of the front seats. However, the occupants if they ignored their seatbelts, continue by inertia movement in the cabin at the same speed – 80 km / h.
  2. Through 0,039 seconds : the driver’s seat moves forward with a 15 cm
  3. Through 0,044 seconds : the driver rests chest into the steering wheel and breaks it.
  4. Through 0.05 seconds : the deformation of the car slows down, it stops abruptly. When this inertial force continues to act on the objects within the machine. Power overloads acting on the passengers and the driver 80 times their own weight.
  5. Through 0,068 seconds : the driver with a force of 9 tons crashed into the dashboard.
  6. Through 0,092 seconds : driver and front passenger sitting synchronous head-bump into the front windshield, was fatally injured.
  7. After 0.1 seconds : dangling on the steering wheel the driver sits back – this time he was already dead.
  8. Through 0.11 seconds : the vehicle starts to roll back.
  9. Through 0.113 seconds : not wearing a rear passenger sitting behind the driver, this time reaches the front seat and put the second shot. If the driver at this point a miracle he lived, this shot will finish it. Rear passengers also received fatal injuries in the collision.
  10. Through 0.15 seconds : the force of inertia possession. The car finally stopped. Only fragments of plastic and metal with glass shards fly away. Dust cloud envelops the clashes. Inside lie motionless body.

(Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

Tests are not limited to the above list of tests, some of which may have a very small percentage in relation to the total number of emergency situations (for example, a car accident with a trailer). However, one can state: all known car safety of their products give paramount importance to the safety of machines every year increases.

We were visiting an accredited German ADAC crash-center in the Bavarian town of Landsberg. (Photo by Michael Dalder | Reuters):

Cars Crash Tests: How To

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