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首页> 美国卫生研究院文献>Materials >Tensile Behavior of High-Strength Strain-Hardening Cement-Based Composites (HS-SHCC) Reinforced with Continuous Textile Made of Ultra-High-Molecular-Weight Polyethylene
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Tensile Behavior of High-Strength Strain-Hardening Cement-Based Composites (HS-SHCC) Reinforced with Continuous Textile Made of Ultra-High-Molecular-Weight Polyethylene

机译：用连续纺织品加固高强度应变硬化水泥基复合材料（HS-SHCC）的拉伸行为由超高分子量聚乙烯制成的连续纺织品

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The paper at hand presents an investigation of the tensile behavior of high-strength, strain-hardening cement-based composites (HS-SHCC), reinforced with a single layer of continuous, two-dimensional textile made of ultra-high molecular weight polyethylene (UHMWPE). Uniaxial tension tests were performed on the bare UHMWPE textiles, on plain HS-SHCC, and on the hybrid fiber-reinforced composites. The bond properties between the textile yarns and the surrounding composite were investigated in single-yarn pullout experiments. In order to assess the influence of bond strength between the yarn and HS-SHCC on the tensile behavior of the composites with hybrid fiber reinforcement, the textile samples were analyzed both with, and without, an additional coating of epoxy resin and sand. Compared to the composites reinforced with carbon yarns in previous studies by the authors, the high elongation capacity of the UHMWPE textile established the higher strain capacity of the hybrid fiber-reinforced composites, and showed superior energy absorption capacity up to failure. The UHMWPE textile limited the average crack width in comparison with that of plain HS-SHCC, but led to slightly larger crack widths when compared to equivalent composites reinforced with carbon textile, the reason for which was traced back to the lower Young’s modulus and the higher elongation capacity of the polymer textile.
机译：手中的纸张提出了高强度，应变硬化水泥基复合材料（HS-SHCC）的拉伸行为的研究，用单层连续，由超高分子量聚乙烯制成的单层连续，二维纺织品（ uhmwpe）。在普通的HS-SHCC上和混合纤维增强复合材料上对裸uhmwpe纺织品进行单轴张力试验。在单纱拉出实验中研究了纺织纱线和周围复合材料之间的粘合性能。为了评估纱线和HS-SHC之间的粘合强度对具有杂化纤维增强材料的复合材料的拉伸行为的影响，纺织品样品与额外的环氧树脂和砂涂覆。与先前研究中的碳纱线加强的复合材料相比，UHMWPE纺织品的高伸长率能力建立了杂化纤维增强复合材料的较高应变能力，并显示出卓越的能量吸收能力达到失效。与普通HS-SHCC相比，UHMWPE纺织品限制了平均裂缝宽度，但与碳纺织增强的等效复合材料相比，导致较大的裂缝宽度，其原因追溯到较低的杨氏模量和更高的原因聚合物纺织的伸长能力。

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