Development of a Novel Functionally Gradient Composite Material

新型功能梯度复合材料的开发

• 批准号: 0726723
• 负责人: Nikhil Gupta
• 金额: --
• 依托单位: Polytechnic University of New York
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0726723&HistoricalAwards=false
• 关键词: Development; Novel; Functionally; Gradient; Composite

A novel lightweight functionally graded polymer based composite material will be developed in this project. This material will have substantially higher energy absorption in quasi-static and dynamic loading conditions compared to other lightweight materials. The proposed functionally graded material (FGM) is based on creating a dispersion of hollow micro-particles of glass according to their wall thickness in a polymeric matrix. The gradient in wall thickness will provide a better control over properties of these FGMs compared to the existing FGMs that are based on creating a gradient of particle volume fraction. The new FGM structure will be designed and optimized through extensive theoretical and experimental analysis. The experimental research will include development of processing methods, characterization of mechanical properties and development of structure-property correlations. Analytical models for two- (matrix and particles) and three-phase (matrix, particles and air voids) composite materials will be developed using homogenization techniques. These models will be applicable to hollow and solid particle filled composites and will provide significantly enhanced predictive capabilities over the currently available models.This project is the first comprehensive attempt to unify the concept of solid and hollow particle filled composites by defining solid particles as a special case of hollow particles. The mew FGM will open up several possibilities for future research in smart composites, self healing composites, bio-compatible materials and highly damping materials. The immediate applications of the new FGMs are expected to be in higher damage withstanding structures. Future possibilities lie in automobile structures, bio-medical implants, sports equipment and self healing components. Extensive educational activities are planned for graduate, undergraduate and high school students as part of the project. The results will be disseminated widely through journal publications, conference presentations and inclusion in the relevant courses.

本计画将开发一种新型的轻量化功能梯度聚合物基复合材料。与其他轻质材料相比，这种材料在准静态和动态载荷条件下具有显著更高的能量吸收。提出的功能梯度材料（FGM）是基于创建一个分散的中空玻璃微粒根据其壁厚在聚合物基体。与基于产生颗粒体积分数梯度的现有FGM相比，壁厚梯度将提供对这些FGM的性质的更好控制。通过大量的理论和实验分析，设计和优化了新型功能梯度材料结构。实验研究将包括加工方法的开发、机械性能的表征和结构-性能相关性的开发。将使用均匀化技术开发两相（基体和颗粒）和三相（基体、颗粒和空隙）复合材料的分析模型。这些模型将适用于空心和实心颗粒填充的复合材料，并将提供显着增强的预测能力，目前可用的models.This项目是第一次全面的尝试，统一的概念，实心和空心颗粒填充的复合材料定义为一个特殊情况下的空心颗粒。新的功能梯度材料将为智能复合材料、自修复复合材料、生物相容材料和高阻尼材料的未来研究开辟几种可能性。新型功能梯度材料的直接应用有望在更高的损伤承受能力的结构。未来的可能性在于汽车结构，生物医学植入物，运动设备和自我修复组件。作为该项目的一部分，计划为研究生、本科生和高中生开展广泛的教育活动。研究结果将通过期刊出版物、会议介绍和纳入相关课程等方式广泛传播。