Basic Studies in Finite Plastic Deformation of Crystals and Polycrystalline Metals

晶体和多晶金属有限塑性变形的基础研究

• 批准号: 8617657
• 负责人: Kerry Havner
• 金额: $ 14.77万
• 依托单位: North Carolina State 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: 1987-02-01 至 1990-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8617657&HistoricalAwards=false
• 关键词: Basic; Studies; Finite; Plastic; Deformation

The objective of this research is to derive improved constitutive equations for finite plastic deformation of single crystal and polycrystalline metals. The research encompasses the systematic experimental and theoretical investigation of the deformation processes in single crystals and its extension to bi-crystals, tri-crystals and finally to polycrystalline metals. The study will combine the concepts of micro-mechanics with the macroscopic theories. The research will contribute to the large effort of modeling the mechanical behavior of materials, and will allow reliable simulation of metal-forming processes and prediction of material failure in mechanical and structural systems.

本研究的目的是推导单晶和多晶金属有限塑性变形的改进本构方程。研究包括系统的实验和理论研究，从单晶到双晶，三晶，最后到多晶金属的变形过程。本研究将微观力学的概念与宏观理论相结合。这项研究将为材料的力学行为建模做出巨大贡献，并将允许对金属成形过程进行可靠的模拟，并预测机械和结构系统中的材料失效。