Strain-hardening cement-based composites (SHCC) reinforced additionally with continuous textile reinforcement exhibit a high tensile strength, ductility and low crack width up to failure localization, being suitable as strengthening layers on structural elements subject to impact loading. The quasi-static tensile properties of such composites are usually derived on long, planar specimens, as dictated by the geometry of the textile reinforcement and by the necessity of sufficient yarn anchorage. However, with regard to high strain rate testing in split Hopkinson bar systems, both the length and the planar shape of the textile reinforced specimen represent major drawbacks. This explains the lack of comprehensive investigations on the mechanical performance of textile reinforced cement-based composites from the perspective of material characterization. This paper presents two new configurations of a gravity-driven split Hopkinson tension bar (SHTB) purposefully developed for investigating the tensile behavior of such composites under strain/displacement rates in the range of impact loading. The first configuration is designed for uniaxial tension tests on planar textile reinforced composites. The planer specimens are attached to the input and output bars using special aluminum adapters. The influence of the adapters and of specimen geometry on wave propagation and dynamic stress equilibrium is discussed in detail based on the results of experimental and numerical investigation. Corresponding amendments to the traditional wave analysis and suitable evaluation methods are proposed for an accurate assessment of the material response. Additionally, a novel testing configuration for single-yarn pullout experiments is presented. This setup allows for a detailed description of the rate effects on the bond between textile yarns and cementitious matrix.

另外，通过连续纺织增强剂进行增强的应变硬化水泥基复合材料（SHCC）表现出高的抗张强度，延展性和较低的裂缝宽度，直至失效定位，适合作为承受冲击载荷的结构元件上的增强层。这种复合材料的准静态拉伸性能通常来自长而平坦的试样，这取决于织物增强材料的几何形状和足够的纱线锚固性。但是，关于在霍普金森分体式棒状系统中的高应变率测试，织物增强试样的长度和平面形状都存在主要缺陷。这解释了从材料表征的角度，缺乏对纺织品增强水泥基复合材料的机械性能的全面研究。本文介绍了重力驱动的霍普金森分体式张力杆（SHTB）的两种新配置，目的是为了研究这种复合材料在冲击载荷范围内的应变/位移速率下的拉伸行为。第一种配置设计用于平面纺织增强复合材料的单轴拉伸测试。使用特殊的铝适配器，将平刨试样固定在输入和输出杆上。根据实验和数值研究的结果，详细讨论了适配器和试样几何形状对波传播和动应力平衡的影响。为了准确评估材料的响应，建议对传统的波浪分析进行相应的修改并采用适当的评估方法。此外，提出了一种用于单纱拉拔实验的新颖测试配置。此设置允许详细描述速率对纺织纱线与水泥基之间粘结的影响。