TY - GEN
T1 - Numerical study of stretch-blow molding of PET bottles
AU - Bagherzadeh, S.
AU - Biglari, F. R.
AU - Nikbin, K.
AU - Mirsaeidi, M.
PY - 2010/12/1
Y1 - 2010/12/1
N2 - In this research work, numerical modeling of the stretch-blow molding (SBM) of polyethylene terephthalate (PET) bottles is studied by finite element method (FEM). In this paper, due to symmetry of part geometry, the bottle is considered as axisymmetric model. A hyperelastic constitutive material model was used in variant high temperatures and strain rates. Instead of blowing process, hydrostatic pressure with convention heat transfer has been used. Comparisons of experimental observations with numerical results can predict an overall trend of thickness distribution. In contrast, some differences can be seen in some regions. These results were used for an overall prediction of bottle properties such as final bottle thickness and a defect free production. Moreover, the parametric studies are conducted on the effect of friction condition, heat transfer coefficient and initial pre-blowing air entrance time delay on bottle thickness. It was concluded that the proposed model is applicable for simulating the stretch blow molding process of PET bottles. This model is capable to offer a helpful knowledge in design of optimum preform and production of bottles.
AB - In this research work, numerical modeling of the stretch-blow molding (SBM) of polyethylene terephthalate (PET) bottles is studied by finite element method (FEM). In this paper, due to symmetry of part geometry, the bottle is considered as axisymmetric model. A hyperelastic constitutive material model was used in variant high temperatures and strain rates. Instead of blowing process, hydrostatic pressure with convention heat transfer has been used. Comparisons of experimental observations with numerical results can predict an overall trend of thickness distribution. In contrast, some differences can be seen in some regions. These results were used for an overall prediction of bottle properties such as final bottle thickness and a defect free production. Moreover, the parametric studies are conducted on the effect of friction condition, heat transfer coefficient and initial pre-blowing air entrance time delay on bottle thickness. It was concluded that the proposed model is applicable for simulating the stretch blow molding process of PET bottles. This model is capable to offer a helpful knowledge in design of optimum preform and production of bottles.
KW - Finite element analysis
KW - Parameter study
KW - PET bottles
KW - Stretch-blow molding
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M3 - Conference contribution
AN - SCOPUS:79959854718
SN - 9789881821072
T3 - WCE 2010 - World Congress on Engineering 2010
SP - 1544
EP - 1549
BT - WCE 2010 - World Congress on Engineering 2010
T2 - World Congress on Engineering 2010, WCE 2010
Y2 - 30 June 2010 through 2 July 2010
ER -