how automotive glass works
However, the standard glass form used at the time did not adequately protect occupants from flying debris.
If the object hits the glass or the vehicle is involved in the accident, it will also pose a risk to the occupant.
On 1903, the French chemist Edouard Benedictus stumbled upon the secret of crushing --
When he put down a glass flask full of dry muslin film, the glass was resistant.
He found that the glass coated with the film cracked, but kept the original shape.
However, this laminated glass can not be used on the car until 1920source: Time].
Automakers use laminated glass in windshields to optimize occupant safety during accidents and protect passengers from projectiles under normal driving conditions.
Nevertheless, all the benefits of the first class of laminated glass provide limited puncture resistance.
The laminated glass of today is made of a thin layer of polyester (PVB)
Insert between two layers of solid glass.
In addition to laminated glass, automotive manufacturers began using tempered glass in the late 1930 s.
This type of glass is used for the side window and rear window of the vehicle and enhances the outer surface of the glass and its core through the heating and rapid cooling process.
By the age of 1960, the American public has become increasingly aware that cars are not designed just for appearance.
This recognition stems partly from the work of the consumer crusader Ralph Nader to expose the dangers posed by certain vehicles and the need for government safety standards.
In response, the United StatesS.
The government establishes the State Administration of highway traffic safety (NHTSA)in 1970 [source: Bowen].
Since then, NHTSA has implemented regulations affecting all areas of vehicle safety, including automotive glass.
Some Federal Motor Vehicle Safety Standards (FMVSS)
For automotive glass, including: Now that we know how automotive glass is formed, let\'s take a look at how it is made.