Towards flexible and defect-free forming of composites through distributed clamping
Towards flexible and defect-free forming of composites through distributed clamping
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通过分布式夹紧实现复合材料的灵活且无缺陷的成型
DOI：
10.1016/j.procir.2019.09.008
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
E. Loukaides
中科院分区：
文献类型：
--
作者：
R. Jagpal;R. Butler;E. Loukaides
复合材料的成型比传统材料（如金属）的成型更具挑战性，因为它们的复杂性往往使预测建模变得棘手。然而，依靠实验和刚性工具也是耗时的，昂贵的，并提供有限的范围。相反，更快的生产速度需要能够应用于各种几何形状的工艺，同时保持控制以减少成形缺陷。在最近的文献中，已经确立了沿坯件周边沿着夹紧的积极影响，特别是在防止起皱方面。在这项工作中，我们提出了一种方法，通过灵活地改变边界条件，以促进具有挑战性的几何形状的创建。该方法允许直接调整局部应力条件，并且可以针对各种零件几何形状进行自动化和优化。我们提出了一个专用的钻机来测试这个概念和初步结果证实其有效性。
Forming of composite materials is more challenging than forming of conventional materials, such as metals, because their complexity often renders predictive modelling intractable. However, relying on experiments and rigid tooling is also time-consuming, costly and provides limited scope. Conversely, faster production speeds require processes that can be applied to a range of geometries while maintaining control to reduce forming defects. In recent literature, the positive influence of clamping along the periphery of a blank has been established, notably in preventing wrinkling. In this work, we propose a method for facilitating the creation of challenging geometries by changing the boundary conditions in a flexible manner. This method allows for direct adjustment of local stress conditions and can be automated and optimised for a diverse range of part geometries. We present a purpose-built rig to test this concept and preliminary results confirming its efficacy.
复合材料无屈曲织物的生产
DOI：
10.1533/9780857092533.1.3
发表时间：
2011
期刊：
影响因子：
--
作者：
Schnabel
通讯作者：
Schnabel