Torsion fragmentation

Mechanic evenly distributed load – short-term – dynamics

Type of glass	Polished glass, rolled sheet glass, laminated glass, ornamental glass.
Examples	Too small thickness of glass (often in the case of double fastening); Glass pack compression; The rise of the window frame.
Beginning	Edge crack angle in all directions, not upright; Transition angle not upright; Visible outlet point in the edge zone; Possible curvilinear cracks in the break centre.
Lines of process	Always last from the edge; Direct break lines; Short cracks; Often reverse lines till the edge, when they are long cracks.
End	Direct lines.
Other features	Often surfaces of the break edges pass over each other; Possible curvilinear cracks in the mid area; No centre of breakage.

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