2013. . No. 1(59) - Mar 2013, pp. 62-64
Stress Measurements in Glass and Plastics by Optical Hole-Drilling
Stress measurements on laminated and toughened glass specimens produced the expected results: low stresses in the former and significant compressive stresses near the surface in the latter for the as-is condition. Since the bending stresses change little within the comparatively small depth range, measurements under bending should and do show slightly higher tensile stresses within the whole depth range.
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