Engineering Research Equipment Grant: High Performance LoadFrame for Deformation Processes Research

工程研究设备补助金：用于变形过程研究的高性能负载框架

• 批准号: 8704994
• 负责人: Paul Dawson
• 金额: $ 10万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-15 至 1989-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8704994&HistoricalAwards=false
• 关键词: Engineering; Research; Equipment; Grant; Performance

There exists a severe shortage of experimental data pertinent to basic deformation processes such as forging, extrusion, and rolling. The lack of appropriate data has been a major obstacle to progress in understanding the fundamental mechanics and materials science associated with forming. Funds will be used to purchase a custom-built, special performance load frame to equip the deformation processes laboratory. The hydraulic system on the frame can deliver large loads and high displacement rates simultaneously. Such capabilities do not exist on the large majority of load frames but are needed to access the regimes of stress and strain rate typical of industrial forming processes. The load frame will be used for a variety of forming experiments in support of the goals to better understand deformation processes and to develop accurate simulation methods for such processes. The research emphasizes tightly coupled experimentation and model development using unique experiments that are designed especially to isolate particular physical phenomena. Such data motivate the structure of forming models and provide the bases to assess modeling assumptions. The deformation process laboratory will be a general purpose facility suitable for studying a wide range of deformation processes, evaluating constitutive model parameters of workpiece materials, and performing tooling design case studies.

有关基本变形过程（如锻造、挤压和轧制）的实验数据严重缺乏。缺乏适当的数据是理解与成形相关的基本力学和材料科学进展的主要障碍。资金将用于购买定制的，特殊性能的荷载框架，以装备变形过程实验室。车架上的液压系统可以同时承受大载荷和高位移率。这种能力不存在于大多数负载框架上，但需要访问工业成形过程的典型应力和应变率制度。负载框架将用于各种成形实验，以支持更好地理解变形过程的目标，并为这些过程开发准确的模拟方法。该研究强调紧密耦合的实验和模型开发，使用专门设计的独特实验来分离特定的物理现象。这些数据激发了形成模型的结构，并为评估建模假设提供了基础。变形过程实验室将是一个通用设施，适合研究广泛的变形过程，评估工件材料的本构模型参数，并进行工具设计案例研究。