The advance of research on constitutive model used in finite element simulation of metal cutting

本构方程 有限元法 碎屑形成 变形(气象学) 过程(计算) 机械工程 结构工程 工程类 材料科学 计算机科学 机械加工 复合材料 刀具磨损 操作系统
作者
Yong Sun,Guohe Li,Zhen He,Xiangcheng Kong
出处
期刊:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science [SAGE Publishing]
卷期号:236 (9): 4921-4945 被引量:9
标识
DOI:10.1177/09544062211052845
摘要

Finite element simulation has become one of the research methods of metal cutting, and the constitutive model plays a decisive role in the modelling. Metal cutting has the characteristics of “three high”, namely large strain, high strain rate, and high temperature compared with other deformation process. An accurate constitutive model that can be used in the finite element simulation of metal cutting is difficult to obtain because the limitation of mechanical experiment. Therefore, the research of constitutive models used in the finite element simulation of metal cutting is summarized in this paper. Several typical constitutive models and their corrections are introduced firstly. Secondly, the main methods to obtain the constitutive parameters are introduced, and the problems of the methods are pointed out. Thirdly, some finite element simulations of serrated chip based on the constitutive models which modified by thermal softening, etc. are given, and the works on the research of the influence of model parameters are summarized. Fourthly, the constitutive parameters of several common materials are collected. The differences of them are shown and the reasons are analyzed. Finally, the problems in current research are analyzed and the directions of future development are pointed out. It can encourage the development of finite element simulation of metal cutting, especially for the simulation of serrated chip produced in high-speed cutting.
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