Models for the Performance of Layered Thermal Barrier Systems

分层热障系统的性能模型

• 批准号: 0511014
• 负责人: Robert McMeeking
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-06-15 至 2010-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0511014&HistoricalAwards=false
• 关键词: Models; Performance; Layered; Thermal; Barrier

Models for the Performance of Layered Thermal Barrier SystemsAbstract Thermal barrier systems of columnar porous zirconia will be used for developing a general simulator that can be utilized to predict the thermomechanical evolution and performance of highly nonlinear multilayers. Microscale characterization tools will identify key phenomena, guide construction of models and provide benchmarks for hierarchical approaches. Methods ranging from first principles schemes to phenomenological continuum mechanics will be utilized with length-scale linkages, and applicability to other materials and systems will be demonstrated. The broader impacts will include a better understanding of thermal barrier systems, the development of better products for thermal protection and improved performance and efficiency of gas turbine engines. This will open avenues for improved design, performance and reliability for thermal barrier systems at higher than current temperatures. A graduate student, undergraduates and high school students will gain experience in research in an important interdisciplinary area encompassing mechanical engineering and materials science.

层状热障系统的性能模型摘要柱状多孔氧化锆的热障系统将用于开发一个通用模拟器，该模拟器可用于预测高度非线性多层材料的热力学演化和性能。微尺度表征工具将识别关键现象，指导模型的构建，并为分层方法提供基准。从第一性原理方案到现象学连续介质力学的方法将与长度尺度联系一起使用，并将证明对其他材料和系统的适用性。更广泛的影响将包括更好地理解热障系统，开发更好的热保护产品，提高燃气涡轮发动机的性能和效率。这将为在高于当前温度下改进热障系统的设计、性能和可靠性开辟道路。研究生，本科生和高中生将获得包括机械工程和材料科学在内的重要跨学科领域的研究经验。