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首页> 外文期刊>Advanced Materials >An Anti-Fatigue Design Strategy for 3D Ribbon-Shaped Flexible Electronics
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An Anti-Fatigue Design Strategy for 3D Ribbon-Shaped Flexible Electronics

机译：3D色带形柔性电子的防疲劳设计策略

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摘要

Three-dimensional (3D) flexible electronics represent an emerging area of intensive attention in recent years, owing to their broad-ranging applications in wearable electronics, flexible robots, tissue/cell scaffolds, among others. The widely adopted 3D conductive mesostructures in the functional device systems would inevitably undergo repetitive out-of-plane compressions during practical operations, and thus, anti-fatigue design strategies are of great significance to improve the reliability of 3D flexible electronics. Previous studies mainly focused on the fatigue failure behavior of planar ribbon-shaped geometries, while anti-fatigue design strategies and predictive failure criteria addressing 3D ribbon-shaped mesostructures are still lacking. This work demonstrates an anti-fatigue strategy to significantly prolong the fatigue life of 3D ribbon-shaped flexible electronics by switching the metal-dominated failure to desired polymer-dominated failure. Combined in situ measurements and computational studies allow the establishment of a failure criterion capable of accurately predicting fatigue lives under out-of-plane compressions, thereby providing useful guidelines for the design of anti-fatigue mesostructures with diverse 3D geometries. Two mechanically reliable 3D devices, including a resistance-type vibration sensor and a janus sensor capable of decoupled temperature measurements, serve as two demonstrative examples to highlight potential applications in long-term health monitoring and human-like robotic perception, respectively.
机译：近年来，三维（3D）柔性电子产品代表了近年来的强化关注的新兴领域，由于其可穿戴电子产品，柔性机器人，组织/细胞支架等的广泛应用。在实际操作期间，功能装置系统中的广泛采用的3D导电型材结构将不可避免地经过重复的平面压缩，因此，防疲劳设计策略具有重要意义，以提高3D柔性电子的可靠性。以前的研究主要集中在平面带状几何形状的疲劳失效行为，而仍缺乏针对3D色带形型腹腔的防疲劳设计策略和预测失败标准。这项工作通过切换金属主导的损失对所需的聚合物主导的故障来显着延长3D色带形柔性电子器件的疲劳寿命。在原位测量和计算研究中结合允许建立能够在平面外压缩下准确地预测疲劳寿命的失效标准，从而为具有多样化的3D几何形状的抗疲劳腹腔设计提供了有用的指导。两个机械可靠的3D设备，包括电阻式振动传感器和能够解耦温度测量的Janus传感器，作为两个示范示例，以分别突出长期健康监测和人类机器人感知中的潜在应用。

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  • 来源
    《Advanced Materials》 |2021年第37期|2102684.1-2102684.13|共13页
  • 作者

    Cheng Xu; Zhang Fan; Bo Renheng; Shen Zhangming; Pang Wenbo; Jin Tianqi; Song Honglie; Xue Zhaoguo; Zhang Yihui;

  • 作者单位

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

    Tsinghua Univ Key Lab Appl Mech Minist Educ Dept Engn Mech Beijing 100084 Peoples R China|Tsinghua Univ Ctr Flexible Elect Technol Beijing 100084 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    3D ribbon-shaped mesostructures; anti-fatigue strategy; fatigue life prediction; flexible electronics; mechanically-guided assembly;

    机译：3D丝带形型材结构;抗疲劳策略;疲劳寿命预测;柔性电子;机械导向组件;

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