• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Functional Materials >Experimental and Theoretical Studies of Serpentine Microstructures Bonded To Prestrained Elastomers for Stretchable Electronics
【24h】

Experimental and Theoretical Studies of Serpentine Microstructures Bonded To Prestrained Elastomers for Stretchable Electronics

机译：蛇形微结构粘结到可拉伸电子器件的预应变弹性体的实验和理论研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Stretchable electronic devices that exploit inorganic materials are attractive due to their combination of high performance with mechanical deformability, particularly for applications in biomedical devices that require intimate integration with human body. Several mechanics and materials schemes have been devised for this type of technology, many of which exploit deformable interconnects. When such interconnects are fully bonded to the substrate and/or encapsulated in a solid material, useful but modest levels of deformation (＜30-40%) are possible, with reversible and repeatable mechanics. Here, the use of prestrain in the substrate is introduced, together with interconnects in narrow, serpentine shapes, to yield significantly enhanced (more than two times) stretchability, to more than 100%. Fracture and cyclic fatigue testing on structures formed with and without prestrain quantitatively demonstrate the possible enhancements. Finite element analyses (FEA) illustrates the effects of various material and geometric parameters. A drastic decrease in the elastic stretchability is observed with increasing metal thickness, due to changes in the buckling mode, that is, from local wrinkling at small thicknesses to absence of such wrinkling at large thicknesses, as revealed by experiment. An analytic model quantitatively predicts the wavelength of this wrinkling, and explains the thickness dependence of the buckling behaviors.
机译：利用无机材料的可拉伸电子设备由于其高性能与机械可变形性的结合而具有吸引力，特别是在需要与人体紧密结合的生物医学设备中。针对这种技术已经设计了几种力学和材料方案，其中许多利用可变形互连。当此类互连完全粘合到基板上和/或封装在固体材料中时，有用的但适度的变形水平（＜30-40％）是可行的，并且具有可逆和可重复的机制。在这里，引入了在基板中使用预应变以及狭窄，蜿蜒形状的互连结构，以将拉伸性显着提高（超过两倍），达到100％以上。在有和没有预应变的情况下对结构进行的断裂和循环疲劳测试定量地证明了可能的增强。有限元分析（FEA）说明了各种材料和几何参数的影响。实验表明，由于屈曲模式的变化，即从小厚度的局部起皱到大厚度的这种起皱的消失，随着金属厚度的增加，弹性拉伸能力急剧下降。一个解析模型定量预测了该起皱的波长，并解释了屈曲行为的厚度依赖性。

著录项

  • 来源
    《Advanced Functional Materials》 |2014年第14期|2028-2037|共10页
  • 作者

    Yihui Zhang; Shuodao Wang; Xuetong Li; Jonathan A. Fan; Sheng Xu; Young Min Song; Ki-Joong Choi; Woon-Hong Yeo; Woosik Lee; Sharaf Nafees Nazaar; Bingwei Lu; Lan Yin; Keh-Chih Hwang; John A. Rogers; Yonggang Huang;

  • 作者单位

    Departments of Civil and Environmental Engineering and Mechanical Engineering Northwestern University Evanston, Illinois, 60208, USA,Center for Mechanics and Materials Tsinghua University Beijing, 100084, China;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Departments of Civil and Environmental Engineering and Mechanical Engineering Northwestern University Evanston, Illinois, 60208, USA,College of Mechanical Engineering Yanshan University Qinhuangdao, 066004, China;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA,Department of Electronic Engineering Pusan National University Busandaehak-ro 63beon-gil, Geumjeong-gu, Busan, 609-735 Republic of Korea;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Center for Mechanics and Materials Tsinghua University Beijing, 100084, China,Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Center for Mechanics and Materials Tsinghua University Beijing, 100084, China,AML, Department of Engineering Mechanics Tsinghua University Beijing, 100084, China;

    Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA,Department of Materials Science and Engineering Chemistry, Mechanical Science and Engineering Electrical and Computer Engineering Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign Urbana, Illinois, 61801, USA;

    Center for Engineering and Health and Skin Disease Research Center Northwestern University Evanston, IL, 60208, USA;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号