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Integrating Moldflow and Abaqus in the Package Simulation Workflow

机译：将Moldflow和Abaqus集成到封装仿真工作流中

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Tetra Pak has used numerical simulation tools for plastic injection molding (Moldflow) and structural analysis (Abaqus/Implicit and Abaqus/Explicit) for many years. Today these two simulation tools are used independently of each other without any coupling. How these two disciplines can be combined to better predict the mechanical response of a polymer component is presented in this work. The manufacturing process, in this case injection molding, creates the mechanical properties of the produced polymer part. Process settings, material selection and molding tool geometry affect the polymer flow, material orientation and rate of crystallinity. A method to build a layered finite element model in Abaqus using results from Moldflow simulations regarding crystallinity growth and molecular orientation is proposed. Relatively simple material models were utilized and assigned for each individual material layer through the thickness in the polymer part. These constitutive models were derived phenomenologically from experimental test results and could adequately capture both the microscopic and the macroscopic behavior in a more realistic way. The numerical results showed a good agreement with the experimental results, both regarding visual appearance and force/displacement response.
机译：利乐多年来一直使用数值模拟工具进行塑料注射成型（Moldflow）和结构分析（Abaqus / Implicit和Abaqus / Explicit）。如今，这两个仿真工具可以彼此独立使用，而无需任何耦合。这项工作介绍了如何将这两个学科结合起来以更好地预测聚合物组分的机械响应。制造过程，在这种情况下是注塑成型，产生了所生产的聚合物部件的机械性能。工艺设置，材料选择和成型工具的几何形状会影响聚合物的流动，材料的取向和结晶速率。提出了一种使用Moldflow模拟结果关于结晶度增长和分子取向的方法在Abaqus中构建分层有限元模型的方法。利用相对简单的材料模型，并通过聚合物部件中的厚度将其分配给每个单独的材料层。这些本构模型从现象学上是从实验测试结果中得出的，并且可以以更现实的方式充分捕获微观和宏观行为。数值结果在视觉外观和力/位移响应方面均与实验结果吻合良好。

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