Finite element simulation of the micromachining of nanosized-silicon-carbide-particle reinforced composite materials based on the cohesive zone model

被引：10

作者：

Pen H. ^{[1
]}

Guo J. ^{[2
]}

Cao Z. ^{[1
]}

Wang X. ^{[1
]}

Wang Z. ^{[3
]}

机构：

[1] Tianjin Institute of Aerospace Mechanical and Electrical Equipment, Tianjin

[2] Tianjin Long March Technical Equipment Co. Ltd, Tianjin

[3] Guilin University of Aerospace Technology, Guilin

来源：

Nanotechnology and Precision Engineering | 2018年 / 1卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Cohesive zone model; Composite materials; Micromachining; Multiscale; Nanosized silicon carbide particles;

D O I：

10.1016/j.npe.2018.12.003

中图分类号：

学科分类号：

摘要：

A finite element method based on the cohesive zone model was used to study the micromachining process of nanosized silicon-carbide-particle (SiCp) reinforced aluminum matrix composites. As a hierarchical multiscale simulation method, the parameters for the cohesive zone model were obtained from the stress-displacement curves of the molecular dynamics simulation. The model considers the random properties of the siliconcarbide-particle distribution and the interface of bonding between the silicon carbide particles and the matrix. The machining mechanics was analyzed according to the chip morphology, stress distribution, cutting temperature, and cutting force. The simulation results revealed that the random distribution of nanosized SiCp causes non-uniform interaction between the tool and the reinforcement particles. This deformation mechanics leads to inhomogeneous stress distribution and irregular cutting force variation. © 2018, Editorial Office of Nanotechnology and Precision Engineering. All right reserved.

引用

页码：242 / 247

页数：5

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