PFI-TT: A Mechanical Testing System to Characterize the Heterogeneous Deformation of Material at Microscopic Length Scales

PFI-TT：一种在微观长度尺度上表征材料非均质变形的机械测试系统

• 批准号: 2016529
• 负责人: Ajit Achuthan
• 金额: $ 25万
• 依托单位: Clarkson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-15 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2016529&HistoricalAwards=false
• 关键词: PFI; TT; Mechanical; Testing; System

The broader impact/commercial potential of this Partnerships for Innovation - Technology Translation (PFI-TT) project is a new market in the mechanical testing industry sector. The proposed mechanical testing system is a sophisticated, experimental capability that allows the strength of materials to be tested. The testing system will facilitate the design and development of next generation advanced metallic alloys. By enabling advanced research and development in the fields of material science, engineering, and manufacturing, the microstructures of materials may be better understood and controlled. The project will train a graduate student in entrepreneurial leadership at the partners’ sites.The proposed project will fill a critical gap in the field of mechanical testing and characterization technology. The proposed mechanical testing system, essentially a suite of software tools along with supporting hardware, characterizes the local, heterogeneous deformation on a microstructural length scale under a uniform tensile loading to determine the influence of various microstructural features on the mechanical properties. The system, based on an inverted microscope, primarily consists of a smart imaging subsystem, a feature detection and tracking subsystem, and a material modeling subsystem. The smart imaging subsystem will maintain the focus and field of view during the tensile testing performed with a microtensile testing device. The feature detection and tracking subsystem will capture the deformation of microstructural features. The material modeling subsystem will characterize the deformation and derive relationships between material properties and the characteristics of the deformation. In the proposed project, the technical feasibility of these subsystems will be demonstrated leading to the building of a preliminary prototype.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该创新合作伙伴关系 - 技术转化 (PFI-TT) 项目的更广泛影响/商业潜力是机械测试行业领域的一个新市场。拟议的机械测试系统是一种复杂的实验功能，可以检测材料的强度。该测试系统将促进下一代先进金属合金的设计和开发，通过实现材料科学、工程和制造领域的先进研究和开发，可以更好地理解和控制材料的微观结构。在创业领导力培训研究生拟议的项目将填补机械测试和表征技术领域的关键空白。拟议的机械测试系统本质上是一套软件工具和支持硬件，可表征微观结构长度尺度上的局部异质变形。该系统基于倒置显微镜，主要由智能成像子系统、特征检测和跟踪子系统以及材料建模子系统组成。成像子系统在使用微拉伸测试设备进行拉伸测试期间，将保持焦点和视野。特征检测和跟踪子系统将捕获微观结构特征的变形，材料建模子系统将表征变形并导出材料属性和特性之间的关系。在拟议的项目中，将证明这些子系统的技术可行性，从而构建初步原型。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和评估进行评估，被认为值得支持。更广泛的影响审查标准。