基于改进JH-2模型的氟金云母本构关系开发与模拟  

Development and Simulation of Constitutive Relationship of Fluorophlogopite Based on Improved JH-2 Model

作　　者：马廉洁 于学荞 韩智斌 潘帅 MA Lian-jie;YU Xue-qiao;HAN Zhi-bin;PAN Shuai(School of Control Engineering,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China;School of Mechanical Engineering&Automation,Northeastern University,Shenyang 110819,China)

机构地区：[1]东北大学秦皇岛分校控制工程学院,河北秦皇岛066004 [2]东北大学机械工程与自动化学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2024年第6期837-842,849,共7页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51975113);河北省自然科学基金项目(E2018501078)。

摘　　要：基于JH-2理论模型,建立了针对脆性材料有限元仿真改进的JH-2离散化模型,以此为本构模型对DEFORM软件的用户端模块进行了二次开发并对工程陶瓷的切削力进行了仿真分析.通过氟金云母车削试验,对比了JH-2离散化模型和J-C理想化模型的仿真效果,分析了切削速度、进给速度和切削深度三种工艺参数对切削力仿真的影响并验证了JH-2模型的准确性和可靠性.试验结果表明,切削力仿真值与试验值变化趋势相同且精度良好,相比于J-C理想化模型,JH-2离散化模型模拟的脆性材料加工形貌更符合实际情况.因此,在针对工程陶瓷的有限元研究中,改进的JH-2离散化模型相对于J-C模型在理论分析和仿真预测上均具有显著优势.Based on the JH-2 theoretical model,an improved JH-2 discrete model for the finite element simulation of brittle materials is established,which is used to redevelop the client module of DEFORM software as a constitutive model.And the cutting force of engineering ceramics is simulated and analyzed.Through the fluorophlogopite turning test,the simulation effects of the JH-2 discrete model and J-C idealized model are compared.The effects of three process parameters,namely cutting speed,feed speed and cutting depth,on the cutting force simulation are analyzed.And the accuracy and reliability of the JH-2 model are verified.The test results show that the variation trend of the simulation value of cutting force is the same as that of the test value,and the precision is good.Compared with the J-C idealized model,the machining morphology of brittle materials simulated by the JH-2 discrete model is more consistent with the actual situation.Therefore,in the finite element research of engineering ceramics,the improved JH-2 discrete model has significant advantages over the J-C model in theoretical analysis and simulation prediction.

关 键 词：JH-2模型 脆性材料 DEFORM软件 二次开发 工艺参数 

分 类 号：TH161[机械工程—机械制造及自动化]