Have you ever wondered what makes modern cars so safe? The answer lies in something we rarely think about: car crash tests. While these tests might seem like mere destructive experiments, they are far more than just smashing cars into barriers. These life-saving evaluations are meticulously crafted to push vehicles to their limits and ensure your safety on the road.
Crash tests provide crucial insights into everything from airbag deployment and the strength of seat belts to the effectiveness of crumple zones. These insights are vital for making cars safer. In this post, we will take you behind the scenes of crash tests, explore how they work, and how they are shaping the future of road safety.
The primary aim of conducting crash tests is to predict crashes in advance and prevent them using proper strategies. Apart from helping develop safety ratings, car crash tests also contribute to continuous improvements in vehicle design and technology.
Equipments Used for a Crash Test
Before diving deeper into how crash testing works, let’s look at the equipment used for a crash test.
Dummies or human-like figures are used to simulate human beings in a crash during crash tests. Generally, these dummies are made of metal or metal composites and have some sensors placed inside them. The main purpose of using dummies in a car crash test is to learn about the extent of damage a crash can cause to the people inside the car.
Impact trolleys are used in crash tests to simulate oncoming vehicles and other obstructions which one might encounter in an accident. Generally made of aluminium and steel, the trolleys are propelled at the test subject from several angles to assess the impact.
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Imaging and Data Analysis Architecture
Crash tests also involve the use of advanced and sophisticated electronics and technology, including cameras, sensors, and analysis software. Cameras and analysis software are used to capture and analyze the images of a crash and assess a car’s safety performance. High-speed cameras are generally placed both inside and outside the vehicle to record the crash from multiple angles. These cameras capture detailed images of the vehicle’s deformation, movement of dummies, airbag deployment, and other critical aspects of the crash.
The image analysis software used in crash tests calculates what is happening during the crash, including the amount of the vehicle’s deformation and the forces exerted on various components. This analysis helps engineers understand how the vehicle structure and safety systems perform under extreme conditions, allowing them to make necessary improvements to enhance overall safety.
How Does Crash Testing Work
A car crash test can be a very complex process. There are various steps and stages involved in this process. Below are the main stages involved in the crash test:
The crash test paint process begins with applying paint to various parts of the crash test dummy. Different colors are typically used for different body parts, with specific colors assigned to the face, areas of the skull, and knees. This paint gets smeared on the car once the test is completed. The dummies are also equipped with accelerometers that measure acceleration in a specific direction.
In the next step, the vehicle is prepared for the crash. During this stage, the dummies are properly placed inside the vehicle. Additionally, manufacturers conducting the crash test set up cameras, sensors, and other necessary equipment. Ballast is added to the vehicle before the test to accurately simulate the weight distribution of a fully loaded vehicle. High-speed cameras are positioned both inside and outside the vehicle during this stage.
The next stage is the crash itself, which is carried out with the help of trolleys. However, the procedure doesn't end with the crash. Once the crash is complete, the manufacturers analyze the results and rate the crash. For example, if the car's front is completely crushed, it is considered a positive sign, indicating that the car can absorb its kinetic energy and reduce the impact of the accident.
Different Types of Crash Tests
Global NCAP, or the New Car Assessment Program, conducts crash tests in India. The following are the main types of crash tests conducted by NCAP:
Front collisions are the most common type of accidents on the road. This is why manufacturers dedicate significant time to improving the safety and sturdiness of the vehicle's front end. In frontal crash tests, a car is made to collide with both static and dynamic barriers. These tests are critical, as frontal impacts cause more deaths and serious injuries than any other type of crash.
Although rollover accidents are rare, they can have a major impact. In such accidents, a car can flip onto its roof, and in the case of roof collapse, the occupants are at risk of being crushed under its weight. Manufacturers, therefore, test the roof of a car to assess how much pressure it can withstand. They measure the peak resistance it offers before crumpling. The strength-to-weight ratio is a measure of a vehicle’s roof strength and is calculated by dividing the resisting force by the gross vehicle weight. A higher strength-to-weight ratio generally indicates a safer car.
Side crash tests assess a car's ability to protect its occupants in the event of a side impact. In these tests, a stationary vehicle is struck by a crash cart with a deformable barrier, designed to simulate the impact of real-world collisions.
Conclusion
Crash tests are essential for ensuring vehicles meet the highest safety standards. These tests simulate real-world accidents to protect lives, improve vehicle design, and pave the way for innovative safety technologies. The rigorous evaluations conducted during crash tests provide critical insights. As a result, every safety feature or star rating you see in a car exists because of crash testing and the insights gained from it.
However, it’s important to note that despite these advanced safety features, the unexpected can still happen. This is why having comprehensive car insurance is just as critical as driving a crash-tested vehicle. Insurance provides the financial security needed after an accident and covers damages, medical costs, and third-party liabilities. You can easily get car insurance online after comparing the available plans.
Disclaimer: The information provided in this blog is for educational and informational purposes only. It may contain outdated data and information regarding the Insurance industry and products. It is advised to verify the currency and relevance of the data and information before taking any major steps. ICICI Lombard is not liable for any inaccuracies or consequences resulting from the use of this outdated information.