Non-Local Modelling of Strain Softening in Machining Simulations

International Conference on Materials, Alloys and Experimental Mechanics 2017

材料科学;金属学;机械制造

Abiri, Olufunminiyi^1 ; Wedberg, Dan^3 ; Svoboda, Ales^2 ; Lindgren, Lars-Erik^2

Institute of Intelligent Systems, University of Johannesburg, Auckland Park

2006, South Africa^1

Lulea University of Technology, Lulea

971 87, Sweden^2

AB SandvikCoromant, Sandviken

811 81, Sweden^3

关键词: Damage-plasticity models;    Dislocation density model;    Machining simulation;    Non-local damage models;    Physically based;    Plastic straining;    Strain-softening;    Stress state;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/225/1/012053/pdf
DOI  :  10.1088/1757-899X/225/1/012053

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Non-local damage model for strain softening in a machining simulation is presented in this paper. The coupled damage-plasticity model consists of a physically based dislocation density model and a damage model driven by plastic straining in combination with the stress state. The predicted chip serration is highly consistent with the measurement results.