具有聚合物基质的加压制造形状记忆合金混合复合材料，其特征是具有重新入口蜂窝结构
Additively manufactured Shape Memory Alloy Hybrid Composites with a polymer matrix featuring a re-entrant honeycomb structure
AI总结：
通过SLA和TFP技术制造具有三层结构的形状记忆合金混合复合材料，利用重新入口蜂窝结构实现平面弯曲变形，展示出可调机械响应和可控变形行为。
摘要：
立体光刻（SLA）和定向纤维放置（TFP）被结合用于制造具有三层结构的形状记忆合金混合复合材料（SMAHC），其在激活时表现出平面弯曲变形。SMA线作为活性元件附着在织物增强层上，然后嵌入UV固化聚合物基质并与几何上定制的纤维层结合，特征为重新入口蜂窝结构。利用SLA的设计自由度，可以系统地调整SMAHC的整体机械响应，从而在热激活过程中实现可控的平面弯曲。两种不同的SMA集成策略——手动嵌入和自动TFP——被研究以评估其对作动行为、可重复性和变形行为的影响。总共制造了八种几何配置，并通过同步光学测量进行实验表征。结果表明，SLA基制造与织物介导的SMA集成结合能够实现精确的作动响应控制，而重新入口蜂窝结构的使用提供了一种有效的方法来定制刚度和变形特性。特别是，自动TFP集成相比手动制造显示出改进的可重复性和更对称的变形行为。所提出的方法建立了一种完全的增材制造路线，使SMAHCs能够实现结构集成、变形复合系统，具有可编程的机械性能。
英文摘要：
Stereolithography (SLA) and Tailored Fiber Placement (TFP) were combined to fabricate shape memory alloy hybrid composites (SMAHC) featuring a three-layer structure and exhibiting out of plane bending deformation when activated, in a fully integrated, additive manufacturing process. SMA wires as active elements were attached to a textile reinforcement layer, which then was embedded within a UV-curable polymer matrix and combined with a geometrically tailored toplayer, featuring the re-entrant honeycomb architecture. Exploiting the design freedom of SLA, the overall mechanical response of the SMAHC can be systematically adjusted, enabling controlled out-of-plane bending during thermal activation. Two different SMA integration strategies - manual embedding and automated TFP were investigated to assess their influence on actuation behavior, reproducibility, and deformation behaviour. A total of eight geometric configurations were manufactured and experimentally characterized using synchronized optical measurements. The results demonstrate that the combination of SLA-based fabrication and textile-mediated SMA integration enables precise control over the actuation response, while the use of re-entrant honeycomb structures provides an effective approach to tailor stiffness and deformation characteristics. In particular, the automated TFP integration yields improved reproducibility and more symmetric deformation behavior compared to manual fabrication. The presented approach establishes a fully additive manufacturing route for SMAHCs, enabling the realization of structurally integrated, morphing composite systems with programmable mechanical properties.
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