基于Lemaitre损伤模型的铝箔剪切过程及断面质量分析*

doi:10.16731/j.cnki.1671-3133.2024.03.012

现代制造工程 ›› 2024, Vol. 522 ›› Issue (3): 89-94.doi: 10.16731/j.cnki.1671-3133.2024.03.012

基于Lemaitre损伤模型的铝箔剪切过程及断面质量分析^*

夏军勇, 孙博

湖北工业大学机械工程学院,武汉 430068

收稿日期:2023-06-06 出版日期:2024-03-18 发布日期:2024-05-31
作者简介:夏军勇,教授,研究方向为轻工及智能装备的开发。E-mail:15172510691@163.com
基金资助:
* 武汉市科技成果转化专项项目(2020030603012342);湖北省现代制造重点实验室开放基金项目(KFJJ-2020009)

Analysis of aluminum foil shearing process and section quality based on Lemaitre damage model

XIA Junyong, SUN Bo

School of Mechanical Engineering,Hubei University of Technology,Wuhan 430068,China

Received:2023-06-06 Online:2024-03-18 Published:2024-05-31

摘要/Abstract

摘要： 铝箔在精密剪切时存在断面翘曲、毛刺及刀具加速磨损等问题无法定性解决。建立Lemaitre剪切损伤模型,精确地分析铝箔剪切的弹塑性变形及断裂的演化过程。通过分析不同剪切间隙对剪切断面质量的影响及刀刃应力状态变化,提出了将剪切断面中剪切带高度及刀刃应力作为铝箔剪切机的优化评价指标。最后通过对仿真数据及试验结果进行分析,得到最佳剪切间隙为30 %t,满足剪切质量的同时,某型铝箔剪切机的剪刃寿命提高了15.9 %。

关键词: Lemaitre损伤模型, 剪切间隙, 刀刃应力, 剪切带高度, 剪刃寿命

Abstract: The problems of section warpage,burr and accelerated tool wear of aluminum foil during precision cutting cannot be solved qualitatively.Lemaitre shear damage model was established to accurately analyze the elastoplastic deformation and fracture evolution process of aluminum foil in shear.By analyzing the influence of different shear gaps on the quality of the shear section and the change of the stress state of the blade,the height of the shear band in the shear section and the stress of the blade were put forward as the optimization evaluation indexes of the aluminum foil shear.Finally,according to the analysis of simulation data and test results,the optimal shearing clearance is 30 %t,which meets the shearing quality.At the same time,the life of the cutting edge of an aluminum foil shearing machine is increased by 15.9 %.

Key words: Lemaitre damage model, shear clearance, blade stress, shear band height, shear blade life

中图分类号:

TG386.2

夏军勇, 孙博. 基于Lemaitre损伤模型的铝箔剪切过程及断面质量分析^*[J]. 现代制造工程, 2024, 522(3): 89-94.

XIA Junyong, SUN Bo. Analysis of aluminum foil shearing process and section quality based on Lemaitre damage model[J]. Modern Manufacturing Engineering, 2024, 522(3): 89-94.

参考文献

[1] 肖磊,郭坤龙.影响圆盘剪带材剪切质量的因素分析[J].上海有色金属,2014,35(1):30-32.
[2] 白冰.药用铝箔印后分切的质量监控[J].印刷质量与标准化,2004(1):25-27.
[3] 杜君宪,石晓娟.影响铝箔分切质量的因素分析[J].机械设计与制造,2008(4):222-223.
[4] 徐宽,夏明生,刘靖宝,等.基于Gissmo材料失效准则的圆盘剪剪刃应力模拟[J].塑性工程学报,2021,28(9):110-116.
[5] KESHAVARZ A,GHAJAR R.Effect of isotropic and anisotropic damage and plasticity on ductile crack initiation[J].Int.J.Damage Mech,2019,28(6):918-942.
[6] 马明辉,钱东升,曹强,等.基于改进Lemaitre损伤模型的圆锥滚子孔型斜轧过程损伤预测[J].锻压技术,2017,42(4):123-130.
[7] 赵伟,邱小婷,陈丽.基于Lemaitre韧性断裂准则的1060铝板成形极限研究[J].锻压技术,2017,42(3):149-153.
[8] 吴卷,詹梅,蒋华兵,等.一种改进的Lemaitre韧性断裂准则及其在旋压成形中的应用[J].航空学报,2011,32(7):1309-1317.
[9] HAMBLI R.Comparison between Lemaitre and Gurson damage models in crack growth simulation during blanking process[J].International Journal of Mechanical Sciences,2001,43(12):2769-2790.
[10] LEE S W,POURBOGHRAT F.Finite element mulation of the punchless piercing process with Lemaitre damage model[J].Int J Mech Sci,2005,47(11):1756.
[11] 王治磊,周杰,杨波,等.SUS304不锈钢Lemaitre损伤模型参数研究[J].塑性工程学报,2020,27(11):167-173.
[12] 中国钢铁工业协会.金属材料拉伸试验第1部分:室温试验方法:GB/T 228.1—2010[S].北京:中国国家标准化管理委员会,2010.
[13] CHUMRUM P,KOGA N,PREMANOND V.Experimental investigation of energy and punch wear in piercing of advanced high-strength steel sheet[J].International Journal of Advanced Manufacturing Technology,2015,79(5/6/7/8):1035-1042.

基于Lemaitre损伤模型的铝箔剪切过程及断面质量分析^*

Analysis of aluminum foil shearing process and section quality based on Lemaitre damage model

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