There is indeed a relationship between quality and car damage. Different models use different steels. Coupled with the different body design, there is indeed a gap in body rigidity.
Jilin University has a paper "Research on Calculation Method and Optimization of Body Stiffness".
The indexes to measure the stiffness of the car body are torsional stiffness, bending stiffness and so on. The difference between torsional stiffness and bending stiffness of different models can reach more than 1 times.
Some are as soft as slices of bread and melt in your mouth.
When colliding with each other, the more rigid the car, the less damage it should theoretically be.
The actual damage degree of a car is also related to many other factors, but besides the rigidity of the car body, the actual damage degree of a car is also related to other factors.
For example, different collision angles may affect the result of vehicle damage.
China Automotive Engineering Research Institute Co., Ltd. and State Key Laboratory of Automotive Noise, Vibration and Safety Technology published the article "Vehicle-vehicle 30-degree Collision Test and Simulation Analysis".
The middle of the front of B car hit the right front corner of A car, and the contact area was small, so the car damage was very serious compared with A car.
As long as you remember the result, it's a bit like saying: the difference between your head "touching" the wall and hitting the corner.
You may have the same strength, but the result will be very different, at least the doctor must think so.
Quality, geometric features, etc. In addition, the mass and geometric characteristics of the vehicle will also affect the vehicle damage.
Journal of Chongqing University of Technology has a paper "Study on the Compatibility of SUV and Car Frontal Collision".
The results are as follows: All other conditions being equal, if the vehicle is heavier by 300 kg, the initial kinetic energy will increase and the deformation of the whole vehicle will intensify, and the maximum intrusion will increase from 368.2mm to 423.4 mm
In other words: the same car, full of 5 people and only 1 person, the car damage after collision will be different.
In addition to quality, the average stress height will also affect the car damage. You can simply understand the average stress height as the stress height of the car.
This is like: a boxer with a height of 1.9 meters is opposite to a boxer with a height of 1.6 meters. The height of the straight fist is different, too. Some start and some hit the shoulder, right?
When a car collides, it is easy to get under the SUV, and the body structure itself may not play a good role.
Therefore, even if the stiffness of the two cars is almost the same, the damage of the car will generally be more serious than that of the SUV in a collision accident.
In a collision accident, once the structure of one car starts to collapse for various reasons, like an accordion, its rigidity will drop sharply.
Even if the original rigidity of the two cars is not much different, the final car damage will be obviously different.
It's like saying: both of them are martial arts experts, fighting with each other, "hmm" one is like this, "ah" one is like this, and they look evenly matched, almost.
As a result, a person caught a cold today and was caught by the other party. That is to say, losing one move and losing another move is not an opponent at all.
Actually, it's almost the same, but today, why do you look at it, lying on the ground alone and standing there alone gloating?
Active safety configuration may also affect the result of vehicle damage. What I just said affects the passive safety of the car, and some active safety configurations will also affect the car damage after the collision.
For example, the automatic emergency braking system (AEB) I just talked about a few days ago.
This system can remind us that if the driver fails to slow down in time, the driver should take the initiative to slow down in order to reduce the speed in case of collision, or simply avoid collision.
When there is a collision accident, the car equipped with this system will slow down because of the timely braking, and the car damage may be relatively small.
It is inaccurate to infer the mass of the cart from the car damage, so generally speaking, the better the quality, the more rigid the car is, the more crashworthy it is, but it is inaccurate and imprecise to infer the mass of the car itself from the car damage results after the collision.
A car with better quality may eventually look even worse and uglier because of various other factors.