Hybrid Nanostructured Material Systems for Tailored Stress-Wave Mitigation of Impact and Blast Effects

用于减轻冲击和爆炸效应的定制应力波的混合纳米结构材料系统

• 批准号: 0928835
• 负责人: Rigoberto Burgueno
• 金额: $ 30万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0928835&HistoricalAwards=false
• 关键词: Hybrid; Nanostructured; Material; Systems; Tailored

A novel concept for the mitigation of blast and impact effects on people and structures with new materials that modify the transmission of stress waves in a controlled or tailored manner is proposed. The concept is to develop new materials by strategically reinforcing cellular solids (e.g., foams) at the micro-scale level by the controlled deposition of nanometer-thick coatings. Homogeneous and particulate-reinforced nano-layers will be deposited by the layer-by-layer assembly method to develop complex multiscale multilayer hybrid reinforcements with molecular-level control of its composition and microstructure. Material and structural component testing will be done to evaluate nano-scale morphology and mechanical properties under pseudo-static and high-rate loads. Multiscale computational models will be developed to study stress waves propagation through complex materials and to serve as design tools.The research will lead to breakthrough knowledge for designing blast/impact absorbing materials in which their deformation and failure is tailored to guide the propagation of stress waves and thus control and optimize energy dissipation. It will also provide new insight to the problem of three-dimensional stress-wave propagation in complex materials. The concept has the potential of revolutionizing the design of automobiles, aircraft, body armor and protective devices for civil infrastructure. Two graduate students will be trained towards a Ph.D. degree under the multidisciplinary basis of the research. The project will be integrated with a new Residential Experience Program for undergraduate engineering students at MSU by developing a Theme Community in ?materials and security.? Summer research opportunities will be offered to traditionally under-represented undergraduate students.

提出了一种新的概念，用于减轻爆炸和冲击对人和结构的影响，新材料以受控或定制的方式修改应力波的传输。该概念是通过战略性地增强蜂窝固体（例如，泡沫）在微米级水平的纳米厚涂层的控制沉积。均匀和颗粒增强的纳米层将通过逐层组装方法沉积，以开发复杂的多尺度多层混合增强体，其组成和微观结构具有分子水平的控制。将进行材料和结构组件测试，以评估纳米级形态和伪静态和高速率载荷下的机械性能。将开发多尺度计算模型来研究应力波在复杂材料中的传播，并作为设计工具。该研究将为设计爆炸/冲击吸收材料带来突破性知识，其中，它们的变形和失效被定制以引导应力波的传播，从而控制和优化能量耗散。它也将为复杂材料中三维应力波传播问题提供新的见解。这一概念有可能彻底改变汽车、飞机、防弹衣和民用基础设施保护装置的设计。两名研究生将被培养为博士。根据研究的多学科基础学位。该项目将通过在密歇根州立大学开发一个主题社区，与密歇根州立大学本科工程专业学生的新住宅体验计划相结合。材料和安全。暑期研究机会将提供给传统上代表性不足的本科生。