• Opto-Electronic Engineering
  • Vol. 37, Issue 10, 111 (2010)
YIN Shao-hui*, JIN Song, ZHU Ke-jun, CHEN Feng-jun, and YU Jian-wu
Author Affiliations
  • [in Chinese]
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    DOI: Cite this Article
    YIN Shao-hui, JIN Song, ZHU Ke-jun, CHEN Feng-jun, YU Jian-wu. Stress Analysis of Compression Molding of Aspherical Glass Lenses Using Finite Element Method[J]. Opto-Electronic Engineering, 2010, 37(10): 111 Copy Citation Text show less

    Abstract

    Accurate data of the internal residual stress can not be obtained in the process of compression molding of aspherical glass lenses, so finite element method was presented to analyze inner stresshistory and predict residual stress distribution. According to the nature of glass at high temperatures which is similar to viscoelastic material, the creep response of 5-pairs general Maxwell model is incorporated into the finite element numerical calculation. Using advanced nonlinear finite element program of MSC.Marc, uniaxial compression of cylindrical glass and compression molding of aspherical glass lenses were simulated. Residual stress distribution in lenses compressed is obtained. On the basis of above mentioned, the effect of temperature and molding velocity on residual stress distribution in lenses was importantly analyzed. The experimental result shows that maximum residual stress occurs at the edge of the lens, and lower temperature and higher molding speed will increase the maximum residual stress.
    YIN Shao-hui, JIN Song, ZHU Ke-jun, CHEN Feng-jun, YU Jian-wu. Stress Analysis of Compression Molding of Aspherical Glass Lenses Using Finite Element Method[J]. Opto-Electronic Engineering, 2010, 37(10): 111
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