A Microstructual Design Study of Ceramic Composites Using Computational and Experimental Methods

使用计算和实验方法进行陶瓷复合材料的微观结构设计研究

• 批准号: 9021683
• 负责人: Noboru Kikuchi
• 金额: $ 19.66万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-06-15 至 1993-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9021683&HistoricalAwards=false
• 关键词: Microstructual; Design; Study; Ceramic; Composites

The proposed investigation will utilize a recently developed analytical technique (homogenization theory) to design composite microstructure for specific loading histories, such as compression, torsion and multi-axis loading histories. These analytical techniques are novel and allow determining both the microstructural and macroscopic response of fiber-reinforced ceramics to multiaxial loading histories. The approach allows the analysis of complex composite systems, including those with 3-D fiber architectures. Moreover, the approach can be used to determine the microstructural and macroscopic response of composites at elevated temperatures, where non-linear behavior may be present. The philosophy of the proposed work is to identify specific microstructure (including requirements for interfacial bonding) that will optimize the fracture resistance of fiver-reinforced composites for various static and cyclic loading histories. The development of fiber- reinforced ceramics is still at a very early state; thus, the proposed investigation has the potential to significantly reduce the development time for these composites.

拟议的研究将利用最近开发的分析技术（均质化理论）来设计特定载荷历史的复合材料微观结构，例如压缩、扭转和多轴载荷历史。 这些分析技术是新颖的，可以确定纤维增强陶瓷对多轴载荷历史的微观结构和宏观响应。 该方法可以分析复杂的复合材料系统，包括具有 3D 纤维架构的系统。 此外，该方法可用于确定复合材料在高温下的微观结构和宏观响应，其中可能存在非线性行为。 拟议工作的理念是确定特定的微观结构（包括界面粘合的要求），以优化五元增强复合材料在各种静态和循环载荷历史下的抗断裂性能。 纤维增强陶瓷的发展仍处于非常早期的阶段；因此，拟议的研究有可能显着缩短这些复合材料的开发时间。