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中文摘要：
采用有限元法，对注塑充填过程中“凸”型和“刀”型塑件截面的速度场和压力场进行数值模拟。通过结果分析得出：广义Hele-Shaw流动假设在熔体前沿部分不合理，在塑件截面突变处Hele-Shaw假设也失效，尤其在突变_的较宽截面处误差更大。
英文摘要：
The velocity and pressure in the filling stage of injection-molded parts were simulated with finite element method （FEM）. For given examples, with uneven thickness the simulation results illustrated that the Hele-Shaw approximation did not work for the flow front and the area where the thickness was suddenly changed. The Hele-Shaw approximation tends to give larger error in the thick part if the thickness is changed.
同期刊论文项目
同项目期刊论文
Gas-assisted Injection Molded Polypropylene/Glass Fiber Composite: Foaming Structure and Tensile Str
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