花键冷敲成形本构关系研究Study of Constitutive Relation in Cold rRolling Spline
卢泓昱,刘志奇,宋建丽,李永堂
摘要(Abstract)：
花键冷敲成形归结于材料的动态塑性变形过程,为了研究该过程材料动态响应特性,对三种常用冲击载荷下材料本构模型进行理论解析,并根据花键冷敲成形工艺参数对JC本构模型进行修正改进;通过三种本构模型在不同应变率和温度条件下的应力情况,使用流动应力预测值和实验值之差来评估模型误差值。最终结合成形过程物理机制、工艺参数和误差对比,结果表明:在大范围应变率和温度条件下,各本构模型均有其在一定范围内的适用性和精度,但对于花键成形应变率和温度范围内,PTW模型的误差率最小,能够较好预测金属流动应力。
关键词(KeyWords)： 花键;冷敲;本构
基金项目(Foundation): 国家自然基金资助项目(51275331);; 高等学校博士学科点专项科研基金(20131415110001);; 山西省自然科学基金(2013011022-1)
作者(Author): 卢泓昱,刘志奇,宋建丽,李永堂
参考文献(References)：
- [1]RULE W K,JONES S E.A revised form for Johnson-Cook strength model[J].Int J Impact Eng,1998,21(8):609-624.
- [2]STEINBERG D J,LUND C M.A constitutive model for strain rates from 10-4to 106s-1[J].J Appl Phys,1989,65(4):1528-1533.
- [3]STEINBERG D J,SHARP R.Interpretation of shock wave data for beryllium and uranium with an elastic-viscoplastic constitutive model[J].J Appl Phys,1981,52:5072-5083.
- [4]KIM J B,SHIN H.Comparison of plasticity models for tantalum and a modification of the PTW model for wide ranges of strain,strain rate,and temperature[J].International Journal of Impact Engineering,2009,36(5):746-753.
- [5]刘旭红,黄西成,陈裕泽,等.强动载荷下金属材料塑性变形本构模型评述[J].力学进展,2007(3):361-374.
- [6]侯日立.高温高压环境下金属材料的本构关系研究[D].武汉理工大学,2010.
- [7]李茂生,陈栋泉.高温高压下材料的本构模型[J].高压物理学报,2001(1):24-31.
- [8]彭建祥.Johnson-Cook本构模型和Steinberg本构模型的比较研究[D].中国工程物理研究院,2006.
- [9]JOHNSON G R,COOK W H.A constitutive model and data for metals subjected to large strains,high strain rates and high temperatures[C]∥Proceedings of the 7th International Symposium on Ballistics,1983,21:541-547.
- [10]KOCKS U F.Realistic constitutive relations for metal plasticity[J].Materials Science and Engineering,2001,317(1-2):181-187.
- [11]SAMANTARAY D.A comparative study on Johnson Cook,modified Zerilli-Armstrong and Arrhenius-type constitutive models to predict elevated temperature flow behaviour in modified 9Cr-1Mo steel[J].Computational Materials Science,2009,47(2):568-576.
- [12]PRESTON D L,TONKS D L,WALLACE D C.Model of plastic deformation for extreme loading conditions[J].J Appl Phys,2003,93(1):211-220.
- [13]张丰收,姚海波,崔凤奎,等.40Cr调质钢高速冷滚打热力耦合数值模拟[J].机械工程材料,2014(8):101-107.