The Study on Residual Stress Testing of Humidity Effect and Distribution Law for PMMA

Shang Wei; Yang Xiao Jing; Mao Cui; Guo Long

doi:10.4028/www.scientific.net/AMR.631-632.358

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 631-632The Study on Residual Stress Testing of Humidity...

The Study on Residual Stress Testing of Humidity Effect and Distribution Law for PMMA

Abstract:

Polymethyl methacrylate (PMMA) has shown some excellent performances. However the humidity environment affects mechanical properties of PMMA seriously. In this work, the digital phase-shifting photoelasticity is used to test the humidity stress of the boundary according to which we concluded that the boundary stress decreases gradually from the boundary to the inner. The mathematical model of the boundary stress distribution is established based on the distribution law of the boundary stress. This mathematical model can be used to predict the effect of the humidity environment to the boundary stress, and guide PMMA to use safely.

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Periodical:

Advanced Materials Research (Volumes 631-632)

Pages:

358-361

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.631-632.358

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Online since:

January 2013

Authors:

Shang Wei, Yang Xiao Jing, Mao Cui, Guo Long

Keywords:

Digital Phase-Shifting Photoelasticity, Humidity, PMMA, Residual Stress

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