木质复合材料切削有限元建模方法研究  

Study on Finite Element Modeling Method of Wood Composite Material Cutting

作　　者：张佳雪 申博 朱天宇 宋美琪[2] 朱兆龙 ZHANG Jia-xue;SHENG Bo;ZHU Tian-yu;SONG Mei-qi;ZHU Zhao-long(School of Mechanical Engineering,Wanjiang University of Technology,Maanshan Anhui 243031,China;Collage of Furnishings and Industrial Design,Nanjing Forestry University,Nanjing Jiangsu 210037,China;Collage of Mechanical and Electrical Engineering,Hohai University,Changzhou Jiangsu 213200,China)

机构地区：[1]皖江工学院机械工程学院,安徽马鞍山243031 [2]南京林业大学家具与工业设计学院,江苏南京210037 [3]河海大学机电工程学院,江苏常州213022

出　　处：《林业机械与木工设备》2024年第10期86-91,101,共7页Forestry Machinery & Woodworking Equipment

基　　金：皖江工学院校级科研项目(WG23031);江苏省高等学校自然科学研究项目(21KJB220009)。

摘　　要：木质复合材料的切削加工性能是学术研究和制造业中持续关注的重要问题,而采用试验法来研究易造成大量的人力物力浪费。作为一种经济环保且低成本的研究方法,有限元仿真技术为研究木质复合材料切削加工过程提供了技术基础。首先介绍了木质复合材料有限元建模中常见的本构模型,重点分析了Johnson–Cook(J-C)本构模型的特点及其关键参数的获取方法;然后介绍了基于材料微观组织结构的二维和三维材料有限元模型的构建方法;接着对网格划分方法、基体和增强相分离准则、界面脱粘模型、刀具和工件摩擦模型进行了分析;最后对木质复合材料切削有限元仿真建模研究进行总结,为创建木质复合材料切削有限元模型提供了理论指导。Wood composite material machining performance is an important issue of continuous concern in both academic research and manufacturing industries.However,conducting experiments to study it can lead to significant human and physical resource wastage.As an economical,environmentally friendly,and low-cost research method,finite element simulation technology provides a technical basis for studying the machining process of wood composite materials.This paper first introduces common constitutive models in finite element modeling of wood composite materials,with a focus on the characteristics of the Johnson-Cook(J-C)constitutive model and methods for obtaining its key parameters.Then,it presents the construction methods of two-dimensional and three-dimensional material finite element models based on the microstructure of materials.Subsequently,analyses are conducted on meshing methods,criteria for separating matrix and reinforcing phases,interface debonding models,and friction models between the tool and workpiece.Finally,a summary of finite element simulation modeling research on machining wood composite materials is provided,offering theoretical guidance for the creation of finite element models for machining wood composite materials.

关 键 词：木质复合材料 有限元仿真 本构模型 切削仿真建模 

分 类 号：TS642[轻工技术与工程]