Abstract
Glass molding press is an efficient manufacturing technology for ultraprecision optical elements with complex shapes. In glass molding, viscoelastic property of glass is an essential aspect that determines the glass deformation behavior around the molding temperature. In this paper, viscoelasticity of glass has been measured experimentally by uniaxially compressing cylindrical glass preforms above the glass transition temperature using an ultraprecision glass molding machine. The elastic modulus and viscosity of glass were obtained by curve fitting techniques using the Burgers model and the Maxwell model for creep and stress relaxation, respectively. Based on the thermo mechanical and viscoelastic parameters obtained from experiments, finite element model simulations of the glass molding process were performed, which can be used to visualize the stress/strain distribution and to predict the residual stress in glass.
| Original language | English |
|---|---|
| Pages (from-to) | 4484-4489 |
| Number of pages | 6 |
| Journal | Journal of Materials Processing Technology |
| Volume | 209 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2009 May 1 |
| Externally published | Yes |
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Keywords
- Creep
- Finite element method
- Glass molding press
- Stress relaxation
- Viscoelasticity
ASJC Scopus subject areas
- Computer Science Applications
- Modelling and Simulation
- Ceramics and Composites
- Metals and Alloys
- Industrial and Manufacturing Engineering
Cite this
Investigation on the viscoelasticity of optical glass in ultraprecision lens molding process. / Zhou, Tianfeng; Yan, Jiwang; Masuda, Jun; Kuriyagawa, Tsunemoto.
In: Journal of Materials Processing Technology, Vol. 209, No. 9, 01.05.2009, p. 4484-4489.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Investigation on the viscoelasticity of optical glass in ultraprecision lens molding process
AU - Zhou, Tianfeng
AU - Yan, Jiwang
AU - Masuda, Jun
AU - Kuriyagawa, Tsunemoto
PY - 2009/5/1
Y1 - 2009/5/1
N2 - Glass molding press is an efficient manufacturing technology for ultraprecision optical elements with complex shapes. In glass molding, viscoelastic property of glass is an essential aspect that determines the glass deformation behavior around the molding temperature. In this paper, viscoelasticity of glass has been measured experimentally by uniaxially compressing cylindrical glass preforms above the glass transition temperature using an ultraprecision glass molding machine. The elastic modulus and viscosity of glass were obtained by curve fitting techniques using the Burgers model and the Maxwell model for creep and stress relaxation, respectively. Based on the thermo mechanical and viscoelastic parameters obtained from experiments, finite element model simulations of the glass molding process were performed, which can be used to visualize the stress/strain distribution and to predict the residual stress in glass.
AB - Glass molding press is an efficient manufacturing technology for ultraprecision optical elements with complex shapes. In glass molding, viscoelastic property of glass is an essential aspect that determines the glass deformation behavior around the molding temperature. In this paper, viscoelasticity of glass has been measured experimentally by uniaxially compressing cylindrical glass preforms above the glass transition temperature using an ultraprecision glass molding machine. The elastic modulus and viscosity of glass were obtained by curve fitting techniques using the Burgers model and the Maxwell model for creep and stress relaxation, respectively. Based on the thermo mechanical and viscoelastic parameters obtained from experiments, finite element model simulations of the glass molding process were performed, which can be used to visualize the stress/strain distribution and to predict the residual stress in glass.
KW - Creep
KW - Finite element method
KW - Glass molding press
KW - Stress relaxation
KW - Viscoelasticity
UR - http://www.scopus.com/inward/record.url?scp=64249116089&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=64249116089&partnerID=8YFLogxK
U2 - 10.1016/j.jmatprotec.2008.10.030
DO - 10.1016/j.jmatprotec.2008.10.030
M3 - Article
AN - SCOPUS:64249116089
VL - 209
SP - 4484
EP - 4489
JO - Journal of Materials Processing Technology
JF - Journal of Materials Processing Technology
SN - 0924-0136
IS - 9
ER -