Stress and flow analyses of ultraviolet-curable resin during curing

Eisaku Umezaki; Akira Okano; Hiroto Koyama

doi:10.1117/12.2053962

2 June 2014 Stress and flow analyses of ultraviolet-curable resin during curing

Eisaku Umezaki, Akira Okano, Hiroto Koyama

Proceedings Volume 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics; 923408 (2014) https://doi.org/10.1117/12.2053962
Event: International Conference on Experimental Mechanics 2013 and the Twelfth Asian Conference on Experimental Mechanics, 2013, Bangkok, Thailand

Abstract

The stress and flow generated in ultraviolet (UV)-curable resin during curing in molds were measured to investigate their relationship. The specimens were molds consisting of glass plates and acrylic bars, and UV-curable liquid resin. The specimens were illuminated from above with UV rays. Photoelastic and visual images were separately obtained at a constant time interval using cameras during curing. To help obtain the visual images, acrylic powder was mixed with the liquid resin. The stress was obtained from the photoelastic images by a digital photoelastic technique with phase stepping, and the flow was obtained from the visual images by a particle-tracking velocimetry technique. Results indicate that the stress generated in the UV-curable resin during curing depends on the degree of contact between the mold and the cured area of the resin, and is hardly related to the flow.

Citation Download Citation

Eisaku Umezaki, Akira Okano, and Hiroto Koyama "Stress and flow analyses of ultraviolet-curable resin during curing", Proc. SPIE 9234, International Conference on Experimental Mechanics 2013 and Twelfth Asian Conference on Experimental Mechanics, 923408 (2 June 2014); https://doi.org/10.1117/12.2053962

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