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首页> 外文会议>International Conference on Material Forming >Particle-polymer Interactions Analysis For Metal Powder Injection Molding Feedstock: A Molecular-dynamics Simulation With Dissipative Particle Dynamics Using ESPResSo
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Particle-polymer Interactions Analysis For Metal Powder Injection Molding Feedstock: A Molecular-dynamics Simulation With Dissipative Particle Dynamics Using ESPResSo

机译：金属粉末注射成型原料的颗粒聚合物相互作用分析：使用浓缩咖啡的耗散粒子动力学的分子动力学模拟

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摘要

The applicability of Dissipative Particle Dynamics is investigated for the rheological study of melts composed of particles/polymers in microcavities for micro injection moulding. The need for prediction of rheological parameters of fluid in Particle charged-Micro Injection Molding is of great importance so far as this would give crucial information concerning, e.g., spatial arrangement of polymeric chains and metallic particles and possible segregation effects. Complex fluids like polymer melts have macroscopic behaviour that greatly depends on their microstructure. The dynamics of a complex fluid is fundamentally affected by its microscopic structure. A complex fluid is no longer completely described by the Navier-Stokes equation, but described by so-called Fokker-Planck equations. A fluid is represented by interacting particles. These particles are allowed to move in a continuous space. Each particle carries certain information pertaining to the flow like the volume of the fluid, or only the mass of the fluid. The equations of motion can also be defined through Newton's laws of motion as in molecular dynamics. Simulations are carried out using molecular dynamics simulation package ESPResSo.
机译：研究了耗散粒子动力学的适用性，用于微腔内颗粒/聚合物的熔体流变研究进行微腔内微腔进行微腔。到目前为止，对颗粒充电微注射成型中流体流变参数的需求非常重要，因为这将提供关于聚合物链和金属颗粒的空间布置以及可能的分离效应的关键信息。像聚合物熔体这样的复杂流体具有大量取决于其微观结构的宏观行为。复杂流体的动态基本上受其微观结构的基本影响。在Navier-Stokes方程中不再完全描述复杂的流体，但是由所谓的Fokker-Planck方程描述。通过相互作用颗粒来表示流体。允许这些颗粒在连续空间中移动。每个颗粒承载与流体体积的流动有关的某些信息，或者仅是流体的质量。运动方程也可以通过牛顿运动规律定义，如在分子动态中。使用分子动力学模拟包浓缩浓缩浓缩浓缩浓咖啡进行仿真。

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