APPLICATION OF NONLOCAL FRICTION IN SEVERAL KINDS OF PLASTIC FORMING PROBLEMS  

作　　者：闫小青 罗海宝 扶名福 江五贵 

机构地区：[1]School of Mechanical and Electrical Engineering, Nanchang University, Nanchang 330029, P.R.China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2005年第11期1420-1426,共7页应用数学和力学（英文版）

基　　金：ProjectsupportedbytheNationalNaturalScienceFoundationofChina(No.19762002)andthePlanedItemforDistinguishedTeacherInvestedMinistryofEducationofChina(No.1964)

摘　　要：The nonlocal friction law proposed by Oden et al. was adopted in order to 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.The nonlocal friction law proposed by Oden et al. was adopted in order to 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.

关 键 词：nonlocal friction plastic working approximate solution 

分 类 号：TG301[金属学及工艺—金属压力加工]