CAREER: Plastic Flow in Reinforced Metals Subjected to Multiaxial Loading

职业：多轴载荷下增强金属中的塑性流动

• 批准号: 9875414
• 负责人: Cliff Lissenden
• 金额: $ 20万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-05-15 至 2004-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9875414&HistoricalAwards=false
• 关键词: CAREER; Plastic; Flow; Reinforced; Metals

The overall goal of this project is to initiate a strong academic career integrating educational and research activities in the area of mechanics of materials. The objective of the research program is to develop a comprehensive understanding of the plastic response of reinforced metals (especially particulate-reinforced and fiber-reinforced aluminum) subjected to multiaxial loading. A study of reinforced aluminum will be performed to provide a multiaxial description of overall plasticity associated with constrained plastic flow in the metallic matrix. Contours of constant plastic flow will be experimentally determined for internal pressure-axial-torsional loading of reinforced tubular specimens, then utilized, with the help of micromechanics, to develop a macroscale continuum model. The primary educational goal is to present mechanics issues to students in a more participatory environment, that is, one in which the students experience mechanics rather than passively learn about it. The primary educational activity is the development of an undergraduate course that emphasizes the integration of mechanics theory, numerical computations, and experiments through study of real manufactured products and structural elements.

这个项目的总体目标是开始一个强大的学术生涯，整合材料力学领域的教育和研究活动。该研究计划的目的是全面了解增强金属(特别是颗粒增强和纤维增强铝)在多轴载荷下的塑性响应。将对增强铝进行研究，以提供与金属基质中的约束塑性流动相关的整体塑性的多轴描述。通过实验确定了增强管试件在内压-轴向-扭转载荷作用下的恒塑性流动等值线，并利用细观力学方法建立了宏观连续介质模型。主要的教育目标是在更具参与性的环境中向学生介绍力学问题，也就是说，学生在其中体验力学而不是被动地学习它。主要的教育活动是开发一门本科课程，强调通过学习真实的制造产品和结构元素来整合力学理论、数值计算和实验。