Coupling of Mold Flow Simulations with Two-Scale Structural Mechanical Simulations for Long Fiber Reinforced Thermoplastics
Coupling of Mold Flow Simulations with Two-Scale Structural Mechanical Simulations for Long Fiber Reinforced Thermoplastics
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长纤维增强热塑性塑料模流仿真与两尺度结构力学仿真的耦合
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
T. Böhlke
中科院分区：
文献类型：
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作者：
Fabian Buck;B. Brylka;V. Müller;T. Müller;A. Hrymak;F. Henning;T. Böhlke
长纤维增强热塑性塑料的整个模拟过程进行检查，以确定有效的机械性能的影响的微观结构的纤维取向状态。因此，进行流动和纤维取向模拟，并将获得的纤维取向张量用于双尺度结构模拟。的纤维取向分布以及力学性能进行了比较与显微计算机断层扫描数据和结果从三点弯曲试验进行动态力学分析（DMA），分别。验证的结果表明，基本的机械性能的预测是可能的与应用的组合方法和知识的纤维取向及其梯度是至关重要的整个模拟过程。
The entire simulation process for long fiber reinforced thermoplastics is examined to determine the effective mechanical properties which are influenced by the microstructural fiber orientation state. Therefore, flow and fiber orientation simulations are conducted and the obtained fiber orientation tensors are used in two-scale structural simulations. The fiber orientation distributions as well as the mechanical properties are compared with micro-computed tomography data and results from threepoint bending tests performed by dynamical mechanical analysis (DMA), respectively. The validated results show that prediction of the essential mechanical properties is possible with the applied combinated methods and that the knowledge of the fiber orientation and its gradients is of crucial importance for the entire simulation process.