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Integrative hinge based on shape memory polymer composites: Material, design, properties and application

机译：基于形状记忆聚合物复合材料的集成铰链：材料，设计，性能和应用

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摘要

Self-deployable structures based on shape memory polymer composites (SMPCs) have the capability of self-deploy, light weight and high load-bearing. This paper presents the detail of an integrative hinge fabricated by carbon fiber reinforced shape memory epoxy composites in the sequence of material selection, structure design and manufacture, material and structure experiments, and application. DMA experiments have been conducted to figure out the temperature sensitivity of SMP. The temperature dependent elastic modulus and strength of SMPC were determined by tensile experiments. Results from three point bending tests and shape memory recovery tests verify the variable stiffness of the integrate SMPC hinge under different temperatures and superior shape memory properties. Strain distribution during bending process are obtained from both digital image correlation (DIC) measurements and ABAQUS simulation, showing good consistency with each other. To compare the modal characteristics with traditional SMPC hinge, modal testing and computation have been designed with free boundary condition. It can be found that the integrative SMPC hinges have the characteristics of improved reliability and performance, and higher post-deployment stiffness and strength, when compared to traditional SMPC hinges. Finally, prospective applications of the self-deployable structure have also been illustrated.
机译：基于形状记忆聚合物复合材料（SMPC）的自部署结构具有自部署能力，重量轻和高承载能力。本文按材料选择，结构设计与制造，材料与结构实验以及应用的顺序，详细介绍了碳纤维增强的形状记忆环氧复合材料制成的整体铰链的细节。进行了DMA实验以找出SMP的温度敏感性。通过拉伸实验确定SMPC的温度依赖性弹性模量和强度。三点弯曲测试和形状记忆恢复测试的结果验证了集成SMPC铰链在不同温度和出色的形状记忆特性下的可变刚度。弯曲过程中的应变分布可通过数字图像相关（DIC）测量和ABAQUS模拟获得，显示出良好的一致性。为了将模态特性与传统SMPC铰链进行比较，设计了具有自由边界条件的模态测试和计算。可以发现，与传统的SMPC铰链相比，集成式SMPC铰链具有提高的可靠性和性能，以及更高的部署后刚度和强度的特性。最后，还说明了可自我部署结构的预期应用。

著录项

  • 来源
    《Composite Structures》 |2018年第12期|164-176|共13页
  • 作者

    Liu Tianzhen; Liu Liwu; Yu Miao; Li Qifeng; Zeng Chengjun; Lan Xin; Liu Yanju; Leng Jinsong;

  • 作者单位

    HIT, Ctr Composite Mat & Struct, 2 YiKuang St,POB 3011, Harbin 150080, Heilongjiang, Peoples R China;

    HIT, Dept Astronaut Sci & Mech, 92 West Dazhi St,POB 301, Harbin 150001, Heilongjiang, Peoples R China;

    Shanghai Inst Satellite Engn, 3666 Yuanjiang St, Shanghai 201109, Peoples R China;

    HIT, Ctr Composite Mat & Struct, 2 YiKuang St,POB 3011, Harbin 150080, Heilongjiang, Peoples R China;

    HIT, Ctr Composite Mat & Struct, 2 YiKuang St,POB 3011, Harbin 150080, Heilongjiang, Peoples R China;

    HIT, Ctr Composite Mat & Struct, 2 YiKuang St,POB 3011, Harbin 150080, Heilongjiang, Peoples R China;

    HIT, Dept Astronaut Sci & Mech, 92 West Dazhi St,POB 301, Harbin 150001, Heilongjiang, Peoples R China;

    HIT, Ctr Composite Mat & Struct, 2 YiKuang St,POB 3011, 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; Integrative hinge; Bending behavior; Variable stiffness;

    机译：形状记忆聚合物复合材料;整体铰链;弯曲性能;可变刚度;

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