Application of Nonlocal Friction in Several Kinds of Plastic Forming Problems

YAN Xiao-qing; LUO Hai-bao; FU Ming-fu; JIANG Wu-gui

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Article Navigation > Applied Mathematics and Mechanics > 2005 > 26(11): 1287-1292

YAN Xiao-qing, LUO Hai-bao, FU Ming-fu, JIANG Wu-gui. Application of Nonlocal Friction in Several Kinds of Plastic Forming Problems[J]. Applied Mathematics and Mechanics, 2005, 26(11): 1287-1292.

Citation:

YAN Xiao-qing, LUO Hai-bao, FU Ming-fu, JIANG Wu-gui. Application of Nonlocal Friction in Several Kinds of Plastic Forming Problems[J]. Applied Mathematics and Mechanics, 2005, 26(11): 1287-1292.

Citation:

YAN Xiao-qing, LUO Hai-bao, FU Ming-fu, JIANG Wu-gui. Application of Nonlocal Friction in Several Kinds of Plastic Forming Problems[J]. Applied Mathematics and Mechanics, 2005, 26(11): 1287-1292.

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Application of Nonlocal Friction in Several Kinds of Plastic Forming Problems

School of Mechanical and Electrial Engineering, Nanchang University, Nanchang 330029, P. R. China

Received Date: 2003-11-03
Rev Recd Date: 2005-07-05
Publish Date: 2005-11-15

Abstract

Abstract

The nonlocal friction law proposed by Oden et al was adopted in order consider the nonlocal friction effect of the asperities on the rough contact surface between the die and the workpiece in several kinds of metal plastic forming problems.The mechanical equilibrium equations with the integral-differential form were obtained by using the engineering method or slab method,and solved approximately by using the perturbation method.The normal stress distributions on the contact surfaces in metal forming problems with nonlocal friction were obtained,and the factors which affect the nonlocal friction effect were analyzed.
- nonlocal friction,
- plastic working,
- approximate solution

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References(8)

References

[1]	B·艾维超[美]. 金属成形工艺与分析[M].王学文，肖文斌，张鸿光译.北京：国防工业出版社，1988.
[2]	Oden J T，Pires E B.Nonlocal and nonlinear friction laws and variational principles for contact problems in elasticity[J].Journal of Application Mechanical of ASME,1983,50(3):67—76. doi: 10.1115/1.3167019
[3]	赵志业主编.金属塑性加工力学[M].北京：冶金工业出版社，1987.
[4]	林治平编著.锻压变形力的工程计算[M].北京：机械工业出版社，1986.
[5]	郭燕伶，罗富美.变薄翻边成形工序中摩擦的影响[J].锻压技术，2002，27（3）：20—21.
[6]	A·H·奈弗.摄动方法[M].王辅俊，徐钧涛，谢寿鑫译.上海：上海科技出版社，1984.
[7]	郭良，扶名福.楔形模宽条料拉拔非局部摩擦问题及近似求解[J].南昌大学学报（工科版），2001，23（1）：1—4.
[8]	郭良，扶名福，陈桂尧.非局部摩擦问题在平面镦粗中的应用及其近似解[J].塑性工程学报，2001，8（1）：59—61.