Simulation Based Materials Design of Biomimetic Nanocomposites

基于仿真的仿生纳米复合材料材料设计

• 批准号: 0115928
• 负责人: Kalpana Katti
• 金额: $ 24万
• 依托单位: North Dakota State University Fargo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-15 至 2005-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0115928&HistoricalAwards=false
• 关键词: Simulation; Based; Materials; Design; Biomimetic

ABSTRACTFor complex nanocomposite systems, the modeling and prediction methodology must cover length scale from molecular (nanometer) to meso and macroscale. The goal of this proposal is to improve and expand computational mechanics of a nanocomposite system using the experimentally determined nanomechanical properties and incorporating them into meso and macroscale models. Specifically, we propose to develop a multiscale model to simulate mechanical responses of nacre, a biomimetic layered nanocomposite of organic and an inorganic components. Numerical models using three-dimensional finite element analysis will be developed for predicting nonlinear and time dependant response of the nanocomposite. Advanced computational facilities (NCSA supercomputers) and experimental facilities (high resolution scanning probe and transmission electron microscopy, vibrational spectroscopy) will be utilized for this research. Results of this research will result in potential criteria for practical, simulation-based materials design of scalable and complex (hybrid) composites containing both a soft and a hard component using the concepts of both biomimetics and nanotechnology.

摘要对于复杂的纳米复合体系，建模和预测方法必须涵盖从分子尺度（纳米）到介观尺度和宏观尺度的尺度。这个建议的目标是改善和扩大计算力学的纳米复合材料系统使用实验确定的纳米力学性能，并将它们纳入介观和宏观尺度模型。具体来说，我们建议开发一个多尺度模型来模拟珍珠层的机械响应，一个仿生层状纳米复合材料的有机和无机成分。将开发使用三维有限元分析的数值模型来预测纳米复合材料的非线性和时间依赖性响应。先进的计算设施（NCSA超级计算机）和实验设施（高分辨率扫描探针和透射电子显微镜，振动光谱）将用于这项研究。 这项研究的结果将导致实际的，基于模拟的材料设计的可扩展的和复杂的（混合）复合材料包含一个软和一个硬组件使用仿生学和纳米技术的概念的潜在标准。