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Stone throw hole II – laminated glass

Mechanic spot load – short-term – medium dynamics
Type of glass

Only laminated glass. In the cases of armoured glass – the similar situation.

Examples

Hit with a heavy thing (hammer or similar);

Cobblestone, brick throw

Beginning

At the clearly visible centre

Lines of process

A bulky web;

Often direct lines, fewer angular fragmentations centrifugally from the hit spot;

Break lines often last till the edge;

The glass camber at the opposite hit side.

End

Direct lines at the middle of the glass or at the edge of the glass.

Other features

Depending upon the size of the tossed thing and the energy of the hit, the openings of different sizes;

Often secondary cracks occur;

Often without perforation.