GFP 1000 App. - Automobile Windshield

Complex Residual Strain Pattern at a Windshield Corner - Line Plot
Although once properly explained this method of interpreting the data could be easily understood, a simple algorithm for reorienting the data to a change in the direction of a free edge could be implemented to avoid any misunderstanding.

Figure 4. Profile plot from compression to tension (right to left) beginning at the windshield corner in figure 3a

Figure 5. Profile plot from compression to tension (right to left) beginning at the windshield corner in figure 3b

For additional information concerning the measurement of residual strains in glass and plastic or the measurement of strains in other materials please contact Stress Photonics Inc.