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AUTOMOTIVE APPLICATIONS
WINDSHIELD EDGE STRESS
WINDSHIELD AREA STRESS
SIDELITE / BACKLITE EDGE STRESS
TEMPER PATTERNS
ASSEMBLY STRESS
SILVER PATTERNS
THERMAL STRESS
RESIDENTIAL AND FLOAT
HEAT TREATMENT
ANNEALING
LAMINAR STRESS
EDGE STRESS
ENVIRONMENTAL STRESS
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Windshield Edge Stress
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Sidelite/Backlite ES
Temper Patterns
Assembly Stress
Silver Patterns
Thermal Stress
   Residential and Float
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Edge Stress
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Sidelite / Backlite Edge Stress

Due to the tempering process, edge compression and associated tension of sidelites and backlites can be very intense. Therefore, they are very sensitive to details of the thermal process. Often, the ring that the glass sits on while formed and tempered robs or gives heat near the edge of the glass, so that small pockets of tension are created. This tension serves to diminish the compressive skin force developed in tempering. If these tension pockets reach sufficient values any contact or load will result in catastrophic failure.



Specimen 1 and Specimen 2 below are 27Mpa Hot Spot consistent


Specimen 1
Specimen 2


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