Cornell Injection Molding Program Progress Report No. 15: Covering the Period from September 1988 Through January 1990College of Engineering, Cornell University, 1990 - 338 頁 |
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第 1 到 3 筆結果,共 13 筆
第 iv 頁
... viscoelastic effects in the filling and cooling stages , with resulting predictions comparing quite well with available measurements in the literature for residual birefringence in molded polystyrene strips . Work was also continued ...
... viscoelastic effects in the filling and cooling stages , with resulting predictions comparing quite well with available measurements in the literature for residual birefringence in molded polystyrene strips . Work was also continued ...
第 236 頁
... viscoelastic model they employed . The residual stresses induced by the flow of polymer in the cavity has been studied by a number of authors using several mod- els for the melt behavior . A more recent work of this nature is presented ...
... viscoelastic model they employed . The residual stresses induced by the flow of polymer in the cavity has been studied by a number of authors using several mod- els for the melt behavior . A more recent work of this nature is presented ...
第 239 頁
... viscoelastic model The following analysis is based on the approach developed by Lee et al [ Lee65 ] who predicted the residual stresses in the tempering of glass . Using an integral form of the viscoelastic constitutive relationships ...
... viscoelastic model The following analysis is based on the approach developed by Lee et al [ Lee65 ] who predicted the residual stresses in the tempering of glass . Using an integral form of the viscoelastic constitutive relationships ...
常見字詞
air traps apparent viscosity behavior best-fit boundary calculated candidate curves candidate points Carreau model cavity-filling COOL3D cooling rate corresponding Cross model density determined developed elements equation experiments Figure filling stage flow rate flow-front region fluid Fraction of solid function gate geometry glycerin Hieber increase injection molding injection-molding injection-molding process instant linear lines and air material melt front mesh MOLDFLOW Newtonian Newtonian fluid node numerical optimization particles Pb alloy PMMA polygon polypropylene polystyrene post-filling stage power-law predicted melt-front advancement pressure drop pressure traces processing conditions Progress Report relative viscosity results in Fig rheological rheometer segments semi-solid alloy shear rate shear stress shown in Fig shrinkage simulation solid fraction Styron surface suspension SWEEP2D swept area symbols Table thermal conductivity thermoset thickness torque V₁ velocity vertex curve viscoelastic viscosity model volume fraction volumetric volumetric flow rate warpage weld lines yield stress