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Compressive properties of the lattice structure with a new process

机译：用新过程的晶格结构的压缩性能

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摘要

With the aim of optimizing the traditional construction process of a fiber-reinforced lattice structure, the present study modified a previously proposed technique called "truss stacking and node gluing." To explicitly investigate the structural compressive properties (compressive strength and compressive modulus under the flat pressure), the geometrical parameters, material properties, and topological configuration were examined in detail. Additionally, the present study conducted the relevant theoretical analyses to predict the possible destruction modes and compressive properties. All the samples were tested with a universal testing machine at a rate of 2 mm/min using the ASTM-C365 standard. The results showed that compressive properties are positively related to the relative density and negatively related to the aspect ratio. It was also found that the compressive performance for different materials was in the following order (from good to bad): cotton-fiber reinforced epoxy composite (CREC), jute-fiber reinforced epoxy composite (JREC), and nylon-fiber reinforced epoxy composite (NREC). Furthermore, the mixed topological structure performed as well as the square structure, and they both overmatched the diamond structure. Lastly, the accuracy of the theoretical analysis was evaluated by comparing the theoretical values and the experimental values.
机译：目前的研究旨在优化纤维增强晶格结构的传统施工过程，目前的研究改进了一个先前提出的技术，称为“桁架堆叠和节点胶合”。为了明确地研究结构压缩性能（在平压下的压缩强度和压缩模量），详细研究了几何参数，材料特性和拓扑结构。另外，本研究进行了相关的理论分析，以预测可能的破坏模式和压缩性能。使用ASTM-C365标准以2mm / min的速率用通用试验机测试所有样品。结果表明，压缩性能与相对密度呈正相关，与纵横比负相关。还发现不同材料的压缩性能处于以下顺序（从良好到坏）：棉纤维增强环氧复合（CREC），黄麻纤维增强环氧复合材料（JREC）和尼龙 - 纤维增强环氧复合材料（NREC）。此外，进行的混合拓扑结构以及方形结构，它们都是覆盖金刚石结构。最后，通过比较理论值和实验值来评估理论分析的准确性。

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  • 来源
    《Journal of Materials Research》 |2020年第24期|3157-3169|共13页
  • 作者

    Qingyuan Xu; Shuguang Li; Runsheng Hu; Mengmeng Liu; Dong Wang; Gaoyuan Ye; Yingcheng Hua;

  • 作者单位

    Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China College of Material Science and Engineering Northeast Forest University Harbin 150040 China;

    Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China College of Material Science and Engineering Northeast Forest University Harbin 150040 China;

    Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China College of Material Science and Engineering Northeast Forest University Harbin 150040 China;

    Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China College of Material Science and Engineering Northeast Forest University Harbin 150040 China;

    Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China College of Material Science and Engineering Northeast Forest University Harbin 150040 China;

    Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China College of Material Science and Engineering Northeast Forest University Harbin 150040 China;

    Key Laboratory of Bio-based Material Science and Technology of the Ministry of Education of China College of Material Science and Engineering Northeast Forest University Harbin 150040 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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