Stress imaging with mechanoluminescence

Chao-Nan Xu; Yun Liu; Morito Akiyama; Kazuhiro Nonaka; Xu-Guang Zheng

doi:10.1117/12.401682

3 October 2000 Stress imaging with mechanoluminescence

Chao-Nan Xu, Yun Liu, Morito Akiyama, Kazuhiro Nonaka, Xu-Guang Zheng

Proceedings Volume 4220, Advanced Photonic Sensors: Technology and Applications; (2000) https://doi.org/10.1117/12.401682
Event: Optics and Optoelectronic Inspection and Control: Techniques, Applications, and Instruments, 2000, Beijing, China

Abstract

We report the realization of the dynamic image of stress distribution by developing a remarkably strong mechanoluminescence (ML) material of Sr_0.975Al₂O_3.985:Eu_0.01(SAO- E), which can emit four orders of magnitude larger intensity than that of the reported strong ML material of quartz crystal. This ML material can be mixed in the target composite or coated on the surface to sense stress by emitting visible light. This method is applicable to the dynamic visualization of stress distribution in a solid not only in the atmosphere but also in an aqueous environment. A simulation result confirms that such a ML image successfully reflects the stress distribution. A kinetic model for ML of SAO-E is proposed.

Citation Download Citation

Chao-Nan Xu, Yun Liu, Morito Akiyama, Kazuhiro Nonaka, and Xu-Guang Zheng "Stress imaging with mechanoluminescence", Proc. SPIE 4220, Advanced Photonic Sensors: Technology and Applications, (3 October 2000); https://doi.org/10.1117/12.401682

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