Why the glass of vehicles always bresaks into small pieces rather than big pieces.?

chids

Just to avoid getting deep cuts when the glass breaks in an accident.

Hope

Modern windshields are generally made of laminated safety glass, which consists of two (typically) curved sheets of glass with a plastic layer laminated between them for safety, and are glued into the window frame.

Early windscreens were made of ordinary window glass, but that could lead to serious injuries in the event of a crash. They were replaced with windshields made of toughened glass and were fitted in the frame using a rubber or neoprene seal. The hardened glass shattered into many mostly harmless fragments when the windscreen broke. These windshields, however, could shatter from a simple stone chip. Especially in police cars this was seen as a problem and it led to the development of the laminated glass windows most cars use. However, there have been some concern over the risk of decapitation and some cars instead use a windscreen of lexan.

The modern, glued-in screens contribute to the vehicle's rigidity, but the main forcing in innovating the windshield has historically been the need to prevent injury from sharp glass fragments. Modern windshields, now almost universally required in all nations, do not fragment, but tend to stay in one piece even if broken, except if pierced locally by a strong force. Properly installed automobile windshields are also essential to safety; along with the roof of the car, they provide protection in the case of a roll-over accident in the vehicle.

Nomad

this is safety glass used in windshields of cars. It was first developed by VOLVO. To avoid extreme injuries to passengers and driver by the broken glass during accident.

temerson

Its called saftey glass. Large shards make for large cuts.

headsiwin

the glass is laminated....this process was invented in the US (WELL DONE) in order to minimise lacerations in the event of an accident.

the alternative is to avoid accidents (incidents), but as humans we're not particularily good at that!

Scott H

For safety reasons.

sean paul

car glass.

bungee

it is because of the plastic shield between the layers. I'm glad it does while it may nick you some it does not do the damage that large slivers would in an accident

sreenu

we the glass is maybe hard but it is brittle substance
the real glass do not go into peices
the doping of other materials in the glass cause them brittle
why dont u see it if the glass is not break into many peices & just into two the the other peices left there cause aeffect to others when they are in the same way
the glass is withmany cuts & joined in to the one shape
so it is is go to break into peices

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