Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Prediction of Birefringence Distribution in Cylindrical Glass Compression Test

유리 압축 실험에서의 복굴절 분포 예측

  • 이주현 (서울대학교 대학원) ;
  • 나진욱 (서울대학교 대학원) ;
  • 임성한 (서울대학교 정밀기계설계공동연구소) ;
  • 오수익 (서울대학교 기계항공공학부)
  • Published : 2004.10.01
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Abstract

An analysis using FEM simulation was conducted to predict residual stresses and birefringence in simple compressed cylindrical glass as a preliminary part of the optimum design determination of optical lenses. The FEM simulation with the Maxwell viscoelastic constitutive model was used to predict thermal induced residual stresses and birefringence during the compression test considering stress relaxation. Also the linear photoelastic theory was introduced to calculate birefringence from the residual stress state. The error of simulation results between experimental results in the birefringence value at the center of glass specimen is $4.2\%$, and the error in the maximum radius of deformed glass specimen is $1.2\%$. The simulation results were in good agreement with deformation and birefringence distribution in the existing experimental result.

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References

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