GOALI: Process Design Solutions for Textured Polycrystalline Cubic and Hexagonal Metals: Inverse Solution Methodologies and Experimental Validation

GOALI：织构多晶立方和六方金属的工艺设计解决方案：逆解方法和实验验证

• 批准号: 0654179
• 负责人: Surya Kalidindi
• 金额: --
• 依托单位: Drexel University
• 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: 2007-07-01 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0654179&HistoricalAwards=false
• 关键词: GOALI; Process; Design; Solutions; Textured

In partnership with General Motors Research and Development Center (GM), this research will build and validate a novel spectral framework for delivering process design solutions. The new framework for process design will build on recent advances made in the PI's research group in efficient spectral representations of microstructure-property-processing linkages. This spectral approach, known as Microstructure Sensitive Design (MSD), employs a statistical description of the microstructure and facilitates consideration of the microstructure simply as a point that lies inside a well defined convex hull in an appropriate Fourier space. Microstructure evolution during a selected manufacturing process will then be treated as a pathline in the same space. The efficiency of the method promises to provide the previously unattainable goal of a searchable and complete space of microstructures and paths required for process design. This work addresses an important strategic need for the US manufacturing industry, and will allow this industry to benefit directly from the emerging Materials Design methodologies and become globally competitive. The proposed interdisciplinary activity also brings together expertise from several traditional fields including mechanical engineering, manufacturing science, engineering design, materials science, and applied mathematics. This will have a significant impact on the development of skilled human resources in emerging science and advanced technology fields.

与通用汽车研发中心（GM）合作，这项研究将建立和验证一个新的光谱框架，以提供工艺设计解决方案。工艺设计的新框架将建立在PI研究小组在微观结构-性能-加工联系的有效光谱表示方面取得的最新进展的基础上。这种光谱方法，称为微结构敏感设计（MSD），采用的微结构的统计描述，并促进考虑的微结构简单地作为一个点，在一个适当的傅立叶空间中的一个明确定义的凸船体内。在选定的制造工艺过程中的微观结构演变，然后将被视为在同一空间中的轨迹线。该方法的效率有望提供一个可搜索的和完整的空间的微结构和工艺设计所需的路径，以前无法实现的目标。这项工作解决了美国制造业的重要战略需求，并将使该行业直接受益于新兴的材料设计方法，并具有全球竞争力。拟议的跨学科活动还汇集了几个传统领域的专业知识，包括机械工程，制造科学，工程设计，材料科学和应用数学。这将对新兴科学和先进技术领域熟练人力资源的开发产生重大影响。