TY - JOUR
T1 - Integrated simulation to predict warpage of injection molded parts
AU - Matsuoka, Takaaki
AU - Takabatake, Jun‐Ichi ‐I
AU - Koiwai, Akihiko
AU - Inoue, Yoshinori
AU - Yamamoto, Satoru
AU - Takahashi, Hideroh
PY - 1991/7
Y1 - 1991/7
N2 - Injection molding analysis programs were developed for CAE (Computer Aided Engineering) in injection molding of thermoplastics. The programs consist of mold cooling, polymer filling‐packing‐cooling, fiber orientation, material properties and stress analyses. These programs are integrated to predict warpage of molded parts by using a common geometric model of three dimensional thinwalled molded parts. The warpage is predicted from temperature difference between upper and lower surfaces, temperature distribution, flow induced shear stress, shrinkage, and anisotropic mechanical properties caused by fiber orientation in the integrated simulation. The integrated simulation was applied to predicting warpage of a 4‐ribbed square plate of glass fiber reinforced polypropylene for examination of its validity. Predicted saddle‐like warpage was in good agreement with experimental one.
AB - Injection molding analysis programs were developed for CAE (Computer Aided Engineering) in injection molding of thermoplastics. The programs consist of mold cooling, polymer filling‐packing‐cooling, fiber orientation, material properties and stress analyses. These programs are integrated to predict warpage of molded parts by using a common geometric model of three dimensional thinwalled molded parts. The warpage is predicted from temperature difference between upper and lower surfaces, temperature distribution, flow induced shear stress, shrinkage, and anisotropic mechanical properties caused by fiber orientation in the integrated simulation. The integrated simulation was applied to predicting warpage of a 4‐ribbed square plate of glass fiber reinforced polypropylene for examination of its validity. Predicted saddle‐like warpage was in good agreement with experimental one.
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U2 - 10.1002/pen.760311408
DO - 10.1002/pen.760311408
M3 - Article
AN - SCOPUS:84989683672
VL - 31
SP - 1043
EP - 1050
JO - Polymer Engineering and Science
JF - Polymer Engineering and Science
SN - 0032-3888
IS - 14
ER -