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Preliminary test and analysis of an ultralight lenticular tube based on shape memory polymer composites

机译：基于形状记忆聚合物复合材料的超轻型双凸透镜管的初步测试与分析

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摘要

Shape memory polymer composites (SMPCs) demonstrate the advantages of light weight, high strain rate, high strength, high stiffness, self-locking and self-deployment. In this study, the mechanical properties and deformation performance of SMPC-based lenticular tube are studied. Dynamic mechanical analysis (DMA) tests and three-point bending tests were carried out to determine thermomechanical properties, and + 45 degrees/-45 degrees fiber layout was chosen as the optimum layout. Tensile tests were conducted to investigate the mechanical properties of SMPC at different temperature. The strain distribution during recovery process was obtained by digital image correlation (DIC) experiment. Bending and recovery process were simulated by finite element analysis, the stress distribution of curved state of lenticular tube were obtained. Comparing with traditional lenticular tube, SMPC-based lenticular tube exhibits the advantages of controllability and stability in deploying process, and they still work well after folding 30 deformation cycles. Due to its above advantages, several potential applications are proposed for deployable space structures and will be validated in near future.
机译：形状记忆聚合物复合材料（SMPC）具有重量轻，应变率高，强度高，刚度高，自锁和自展开的优点。本研究对SMPC基双凸透镜管的力学性能和变形性能进行了研究。进行了动态机械分析（DMA）测试和三点弯曲测试，以确定热机械性能，并选择了+ 45度/ -45度的光纤布局作为最佳布局。进行拉伸试验以研究SMPC在不同温度下的机械性能。通过数字图像相关（DIC）实验获得了恢复过程中的应变分布。通过有限元分析模拟了弯曲和恢复的过程，得到了双凸透镜管弯曲状态的应力分布。与传统的双凸透镜管相比，基于SMPC的双凸透镜管在展开过程中具有可控性和稳定性的优点，并且在经过30次变形循环后仍能很好地工作。由于其上述优点，提出了一些可部署空间结构的潜在应用，并将在不久的将来得到验证。

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  • 来源
    《Composite Structures》 |2019年第9期|110936.1-110936.11|共11页
  • 作者

    Liu Zhengxian; Li Qifeng; Bian Wenfeng; Lan Xin; Liu Yanju; Leng Jinsong;

  • 作者单位

    Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Dept Civil Engn, Weihai 264209, Peoples R China;

    Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150080, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Dept Astronaut Sci & Mech, Harbin 150001, Heilongjiang, Peoples R China;

    Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150080, Heilongjiang, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Shape memory polymer composites; Lenticular tube; Deployable space structures;

    机译：形状记忆聚合物复合材料;柱状管;可展开空间结构;

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