摘要
经典塑性理论主要研究"连续介质"的力学特性,无法分析粉末类"非连续介质"材料的压制问题。从早期理论模型、广义塑性理论以及数值分析方法等方面综述了粉末类材料压制的理论研究以及相关实验手段的现状,讨论了各种理论与实验方法的特点和局限。
Classical plastic theory concentrates on the properties of continua, and can＇t be employed to study the compression of un-continua. The earlier theoretical model, plastic models for soil and rock, the numerical methods in the field of compression of powder, together with the experimental studies were reviewed. The characteristics and limitation of each theory and method were discussed.
出处
《模具技术》
2007年第6期4-8,共5页
Die and Mould Technology
基金
重庆市自然科学基金计划项目(CSTC
2006BB4020)
关键词
粉末
压制成形
数值分析
powder
compression
numerical analysis
