Foldable technical structures can be used to provide a temporary additional volume. In nature, a tubular folding application is the extension of the snail eye. The present study uses this approach. A transformation into a technical application is only successful if the high eversion loads are considered. The study aims to develop a method to realize such structures based on a metallic wire net structure. The tube consists of Shape Memory Alloy (SMA) pieces connected by developed crimp elements produced by additive manufacturing. Additive manufacturing was used to provide a fast and effective way to make several crimp element geometries available to define a preferred variant. In a preliminary building study, the printing parameters for crimp element production were improved. The tubular structure development is assisted by numerical simulation of the eversion process. The SMA material model parameters were identified with experimental tension tests. A feasible way to connect additively manufactured crimp elements with SMA wire was found within a joining method study. Tension tests of the connections protect against pull-out failure. The eversion process was investigated using a high-speed camera system. Multiple eversion of the developed structure is possible without failure.

可折叠的技术结构可用于提供临时的附加体积。在本质上，管状折叠应用是蜗牛眼的延伸。本研究采用这种方法。只有考虑到高外翻载荷，才能成功转化为技术应用。该研究旨在开发一种基于金属丝网结构实现此类结构的方法。该管由形状记忆合金 (SMA) 零件组成，这些零件通过增材制造生产的开发压接元件连接。增材制造用于提供一种快速有效的方法，使多种压接元件几何形状可用于定义首选变体。在初步构建研究中，改进了压接元件生产的印刷参数。外翻过程的数值模拟有助于管状结构的发展。SMA 材料模型参数通过实验张力测试确定。在连接方法研究中发现了一种将增材制造的压接元件与 SMA 线连接的可行方法。连接的张力测试可防止拔出故障。使用高速相机系统研究外翻过程。开发结构的多次外翻是可能的而不会失败。使用高速相机系统研究外翻过程。开发结构的多次外翻是可能的而不会失败。使用高速相机系统研究外翻过程。开发结构的多次外翻是可能的而不会失败。