Experimental and Computational Nanowire Tensile Testing

摘要（0556032）我们建议开发一种基于AFM的纳米线拉伸测试装置连同实验验证的计算工具，以获得对纳米线的机械性能的基本理解。 该提案的特点是理论和实验的紧密结合，以验证和阐明结果的方式，这是不可能从一个单一的研究。这套工具将是必不可少的广泛的研究和工业领域的纳米线和纳米材料的兴趣，包括谐振器，复合材料，纳米流体，和electrical junctions.The更广泛的影响，这一建议包括建立纳米线的机械设计准则，并提供了一套计算工具来计算纳米线器件和纳米线/金属界面在新的应用中的行为。 这些工具将使广泛的工程师和研究人员能够自信地实施纳米线设计，这是纳米技术的关键组成部分。 该教育计划包括开发大型版本的AFM式拉伸测试和简化版本的计算代码，向高中和本科生演示应力，应变和AFM操作的概念。

Abstract (0556032)We propose to develop an AFM-based nanowire tensile test apparatus together with an experimentally validated computational tool, to obtain fundamental understanding on the mechanical properties of nanowires. The proposal features close integration of theory and experiment to validate and illuminate the results in a manner that would not be possible from a single study alone. This tool set will be essential for a wide array of research and industrial fields with interests in nanowires and nanomaterials, including resonators, composites, nanofluidics, and electrical junctions.The broader impact of this proposal includes establishing mechanical design guidelines for nanowires and providing a set of computational tools to calculate the behavior of nanowire devices and nanowire/metal interfaces in new applications. These tools will enable a wide range engineers and researchers to confidently implement nanowire designs, a key building block of nanotechnology. The educational plan include the development of a large-scale version of the AFM style tensile test and simplified version of computational codes, demonstrating the concepts of stress, strain, and AFM operation to high school and undergraduate students.