工艺与制造英文2022被引 8
纤维金属层板(FML)原位杂化三维工艺仿真研究
Towards 3D Process Simulation for<i> In Situ</i> Hybridization of Fiber-Metal-Laminates (FML)
Christian Poppe, Henrik O. Werner, Moritz Kruse, Hui Chen, Noomane Ben Khalifa, Frank Henning, Luise Kärger · Karlsruhe Institute of Technology
摘要整理
纤维金属层板(FML)具有优异的疲劳性能、损伤容限特性和固有的耐腐蚀性。为加快制造速度并提高所生产FML零件的几何复杂度，Mennecart等提出了一种新型单步工艺，将深拉伸与浸润相结合(HY-LCM)。尽管初步实验结果令人鼓舞，但该工艺面临多项挑战，主要源于深拉伸与浸润之间的流固耦合(FSI)相互作用。本研究旨在深入调查这些挑战以理解其内在机制。实验方面提出了一套接近工艺条件的新型测试装置，将混杂堆栈的深拉伸与线性浸润相结合。数值方面建立了FML工艺仿真模型，能够预测干模成形力、三层玻纤(GF)中间层内的局部纤维体积含量(FVC)以及同步流体推进。数值结果表明混杂堆栈的局部变形和所需成形力可被准确预测。此外，混杂堆栈的侧向密封导致流体推进偏离预期的一维流动。数值结果进一步表明，大部分流动阻力源于几何临界位置。后续实验和数值工作将结合这些认识，重点关注变形过程中的流动评估和零件级应用的成功实现。
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