Which is stronger - the inside or the outside of a windshield?

Question

Is there a difference between the strength of a car windshield from the inside versus the outside - when something goes through it?

Answer 1

Both sides.
Though it depends upon the density of laminations applied.
if the lamination density is more from the outside, its stonger from outside. The above fact is true for laminated/toughenend windshields

Answer 2

I would think that outside (coming in) is stronger because of the curve of the windshield. That curve would spread the force of any impact across the surface, like an arch. I am sure the difference is small, but I think it is measureable.

For a flat windshield, like old Volvos, there would be no difference.

Answer 3

The "strength of materials" factor is the same for both sides of the windshield. However, SHAPE plays a part in this analysis. Wheather a projectile is impacting on a concave versus a convex surface alters the result.

Answer 4

There is probably no tangible difference but the inside is concave while the ontside is convexe. So, just like a door that open outside, the inside of a windshield is weaker than the outside.

Answer 5

chilly climate (or warm) will probable reason the crack to enhance in length. you may not get extra beneficial than one crack nevertheless. you won't be waiting to handle to pay for a complete new windshield on your person, yet many coverage companies will replace the glass for loose or with in simple terms the deductible if the windshield cracks. Cracks are spoke of as runners, and you gets them "fastened" so as that they provide up growing to be throughout your windshield for approximately $50, whether that is extra helpful in simple terms to pay your deductible and get an entire new piece of glass. If I have been you, i could call your coverage employer and see in the event that they are going to disguise a replace completely or minus the deductible. some states require it to be loose, so which you will possibly be able to success out. the two way, you're paying below you may for a complete new piece of glass. overlaying the windshield won't avert the crack from growing to be because of the fact that its ambient temperature that is cracking it, not something resting on the glass.

Answer 6

The outside of the windshield is stronger due to its shape.

Answer 7

For something passing through the glass from the front (i.e. over the hood of the vehicle), the coating on the glass and the glass shape makes the window fairly resistive to impact breakage. Both the ineer and outer layers of glass are equally resistive; they are shaped the same, and the coating is applied to each.

However, for an impact originating on the INSIDE of the vehicle and passing outward over the hood, the glass is much weaker - due entirely to shape. Both sheets are equally susceptible to damage.

Answer 8

Alot of windshields are actually 2 pieces of glass taped together, with specific break patterns, they do that when the glass is tempered. That's where the square pieces of glass come from.I wouldn't think that one was stronger than the other. Due to regulatory statues on break patterns.

Answer 9

I wouldn't think so. The windsheild is coated to prevent it from most impacts so that the glass won't shatter and implode on passengers inside. You would think they would have to apply the coating to both sides in an equal manner for this to be at it's best.