NIRT: Interphase Design for Extraordinary Nanocomposites: Multiscale Modeling and Characterization

NIRT：非凡纳米复合材料的界面设计：多尺度建模和表征

• 批准号: 0404291
• 负责人: Lynda Brinson
• 金额: $ 127万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0404291&HistoricalAwards=false
• 关键词: NIRT; Interphase; Design; Extraordinary; Nanocomposites

NIRT: INTERPHASE DESIGN FOR EXTRAORDINARY NANOCOMPOSITES: MULTISCALE MODELING AND CHARACTERIZATIONL. C. Brinson, Northwestern UniversityS.K. Kumar, L. Schadler, RPII. Beyerlein, Antonio Redondo, Los Alamos200 word abstract:We propose an integrated experimental and theoretical program to characterize and model the mechanical behavior of carbon nanotube (NT) reinforced polymer composites across length and time scales spanning from the atomic to macroscopic. Our focus is to understand the deformation and failure mechanism in these materials and specifically how those are impacted by the chemistry and morphology of the NTs. We will intertwine molecular scale models, coarse graining, micromechanics and continuum mechanics to address these issues. The models will be closely coupled to experiments at several length/time scales. A hierarchical approach will allow us to assess the importance of different types of chemical interactions between NT and polymer and different types of NT morphologies on deformation from the elastic range through fracture and failure. This work will help guide the design and development of nanocomposites in general. Applications of nano-composites with designer properties are far-reaching, including aerospace structures, medical devices, and coatings. Results from this work will define new durable, lightweight materials for use in structures from the very small (MEMS and chips) to the very large (spacecraft). Even more broadly, the techniques that are developed to link length scales will be applicable across a broad range of materials modeling.

NIRT：非凡的纳米复合材料的相间设计：多尺度建模和表征。 C. Brinson，西北大学Kumar，L。Schadler，RPII。 Beyerlein，Antonio Redondo，Los Alamos200 Word摘要：我们提出了一个集成的实验和理论程序，以表征和建模碳纳米管（NT）增强聚合物复合材料的机械行为，跨长度和时间尺度，从原子镜到宏观。我们的重点是了解这些材料的变形和故障机制，特别是这些材料如何受到NTS的化学和形态影响。我们将交织分子量表模型，粗晶片，微观力学和连续力学，以解决这些问题。 这些模型将与几个长度/时间尺度的实验紧密耦合。分层方法将使我们能够评估NT和聚合物之间不同类型的化学相互作用的重要性，以及不同类型的NT形态在弹性范围通过断裂和失败的变形方面的变形。这项工作将有助于指导纳米复合材料的设计和开发。 纳米复合材料具有设计人员特性的应用是深远的，包括航空航天结构，医疗设备和涂料。 这项工作的结果将定义新的耐用，轻巧的材料，用于从很小的（MEM和芯片）到非常大的（航天器）的结构中使用。更广泛地说，为链接长度尺度链接的技术将适用于广泛的材料建模。