Stress Measurements in Glass Using the Method of Thermal Gratings 2002-01-1996
We developed a non-destructive and non-contact method for measuring stress at the mid-plane of tempered glass plates that uses Bragg scattering from a pair of thermal gratings. These gratings are formed by 1064 nm beams from a seeded Nd:YAG laser and we measure the polarization state of light from a 532 nm beam that scatters from both these thermal gratings. The change in polarization of the doubly scattered light with separation between the two gratings allows measurement of the in-plane stress. Stress measurements are reported.
Citation: Cannon, B., Shepard, C., and Khaleel, M., "Stress Measurements in Glass Using the Method of Thermal Gratings," SAE Technical Paper 2002-01-1996, 2002, https://doi.org/10.4271/2002-01-1996. Download Citation
Author(s):
Bret D. Cannon, Chester Shepard, Mohammad Khaleel
Affiliated:
Pacific Northwest National Laboratory
Pages: 10
Event:
International Body Engineering Conference & Exhibition and Automotive & Transportation Technology Congress
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 2002 Transactions Journal of Materials & Manufacturing-V111-5
Related Topics:
Glass
Lasers
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