Abstract
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.
Original language | English |
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Journal | SAE Technical Papers |
DOIs | |
State | Published - 2002 |
Externally published | Yes |
Event | International Body Engineering Conference and Exhibition and Automotive and Transportation Technology Conference - Paris, France Duration: Jul 9 2002 → Jul 11 2002 |