Hybrid Composite-Nanometal-Polymer Structural Systems

混合复合材料-纳米金属聚合物（HCNP）结构是一种新型结构体系，它重量轻、强度高、硬度高，具有前所未有的设计灵活性，可以增加变形或声学剪裁等多功能功能。这些结构使用三种先进的制造技术制造，并依靠复杂的建模和计算优化方法来创建有效的设计。HCNP结构是通过3D打印一个复杂的桁架状聚合物预制体来制造的，随后使用脉冲电沉积工艺涂覆纳米晶体镍、钴或铁，然后用作三明治结构的核心。具有工程刚度的碳纤维复合材料层压板粘附在桁架上，形成夹层结构的面板。这些结构具有许多自由设计变量：在核心部分，设计者选择支撑半径、间距和倾角；纳米金属镀层厚度、元素组成和晶粒尺寸分布；在面板中，厚度和刚度分布。由于许多设计变量，HCNP结构可以被定制为高效率

Hybrid composite-nanometal-polymer (HCNP) structures are new structural systems that are light, strong and stiff, and offer unprecedented design flexibility that enables the addition of multifunctional capabilities such as morphing or acoustic tailoring. These structures are fabricated using three advanced manufacturing techniques and rely on sophisticated modelling and computational optimisation methods to create efficient designs. The HCNP structures are fabricated by 3D printing a complex truss-like polymer preform which is subsequently coated with nanocrystalline nickel, cobalt or iron using a pulsed electrodeposition process and then used as the core of a sandwich structure. Carbon fibre composite laminates with engineered stiffness are adhered to the truss to form the face sheets of the sandwich structure. These structures have many free design variables: in the core the designer selects the strut radius, spacing and inclination; the nanometal coating thickness, elemental composition and grain size distribution; and in the face sheets the thickness and stiffness distributions. Because of the many design variables, the HCNP structures can be tailored to be highly efficient