NSF/Sandia: Atomistic-Based Continuum Models of Micro- and Nano-Scale Engineered Systems/Processes

NSF/桑迪亚：基于原子的微米级和纳米级工程系统/过程的连续体模型

• 批准号: 0331124
• 负责人: YongGang Huang
• 金额: $ 22.5万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0331124&HistoricalAwards=false
• 关键词: NSF; Sandia; Atomistic; Based; Continuum

Nanotechnologies have been recognized as a key technological area critical to the economic well-being of the United States in the 21st century, with potentials of unparalleled improvement in our future standard of living. To realize the potential benefits of nanotechnologies, however, one must develop enabling technologies to scale up the nano-scopic components to micro/meso-scopic products and beyond. This project assembles a multidisciplinary research team with complementary expertise to investigate integrated processing, manufacturing and modeling issues of a class of very important engineering material for nanotechnologies Carbon nanotube composites. The goal of this work is to use the atomistic-based continuum models to investigate the properties and manufacturability of carbon nanotube composites. The proposed research program includes three main thrust areas: i) studying the processing and characterization of nanotube-polymer composites; ii) exploring the applicability of various manufacturing techniques for these composites; and iii) developing multiscale, atomistic-based models for processing, manufacturing, and mechanical properties of nanotube composites. The research project is expected to produce physically sound models that can be used to study the manufacturability and properties of nanotube composites, and to address the critical issues related to processing and manufacturing of nanotube composites. Many potential benefits may accrue from this research. At present, there is very limited understanding of the manufacturability of ultra-hard, nano-materials. The proposed study, through understanding of the mechanisms of material removal and the role of Carbon Nanotubes during the machining process, combined with multi-scale modeling efforts, will provide guidelines for Carbon Nanotubes composite processing to enhance both the mechanical properties and the manufacturability of the composites. The mechanics analysis will give rise to powerful tools to link nano-structures to the macroscopic behavior of the material. The results of the proposed research could also be used to model performance of Carbon Nanotubes composites in future applications, such critical load-carrying components in aerospace industry, medical and bio-medical devices. In addition to the research activities, the proposed program contains a comprehensive educational plan. The educational plan aims at the broader objective of training and educating graduate and undergraduate students, K-12 school teachers, and the general public on potentials and issues of nanoscale science and engineering and nano-manufacturing. Specifically, the program highlights efforts to train next generation leaders in nano-manufacturing; to involve middle school and high school teachers in the research through Research Experiences for Teachers (RET) program as a vehicle to reach out to K-12 students; to boost participation of members of underrepresented groups by partnering with women and minority student organizations on campus; and to educate the general public about the opportunities and implications of nano-science and engineering by participating in the annual Engineering Open House program. Furthermore, the proposed educational program is expected to significantly stimulate younger generation's interests in this emerging field, and to improve U.S. industry's future competitiveness in nanotechnology by producing well-trained researchers and engineers.

纳米技术被认为是对21世纪美国经济福祉至关重要的关键技术领域，在我们未来的生活水平中无与伦比的潜力无与伦比。 但是，要实现纳米技术的潜在好处，必须开发有助于技术，以将纳米范围的组件扩展到微/中间的产品及其他产品。 该项目组装了一个具有互补专业知识的多学科研究团队，以研究纳米技术碳纳米管复合材料的一类非常重要的工程材料的综合处理，制造和建模问题。 这项工作的目的是使用基于原子的连续模型研究碳纳米管复合材料的性质和制造性。 拟议的研究计划包括三个主要的推力区域：i）研究纳米管 - 聚合物复合材料的加工和表征； ii）探索各种制造技术对这些复合材料的适用性； iii）开发用于加工，制造和机械性能的纳米管复合材料的多尺度，基于原子的模型。 预计该研究项目将产生物理声音模型，可用于研究纳米管复合材料的生产性和特性，并解决与纳米管复合材料的加工和制造有关的关键问题。这项研究可能会带来许多潜在的好处。 目前，对超硬质材料的生产性的理解非常有限。 通过了解材料去除机制以及碳纳米管在加工过程中的作用，拟议的研究将与多尺度建模工作相结合，将为碳纳米管复合加工提供指南，以增强复合材料的机械性能和生产性。 力学分析将产生强大的工具，将纳米结构与材料的宏观行为联系起来。 拟议的研究的结果也可以用于模拟未来应用中碳纳米管复合材料的性能，这是航空航天行业，医疗和生物医学设备中的关键负载携带组件。 除研究活动外，该计划还包含一个全面的教育计划。 该教育计划的目的是在培训和教育研究生和本科生，K-12学校教师以及公众关于纳米级科学和工程以及纳米制造方面的广泛目标。 具体而言，该计划强调了训练纳米制造中的下一代领导者的努力。通过针对教师（RET）计划的研究经验，让中学和高中教师参与研究，作为与K-12学生接触的工具；通过与校园中的妇女和少数族裔学生组织合作来促进代表性不足的团体成员的参与；并通过参加年度工程开放日计划来教育公众有关纳米科学和工程的机会和含义。 此外，预计拟议的教育计划将显着刺激年轻一代在这个新兴领域的利益，并通过培养训练有素的研究人员和工程师来提高美国工业工业的未来纳米技术竞争力。