以跟踪最大应变速率单元并使之维持最佳应变速率的方法确定超塑性充模服形的最佳加压规范;用大变形刚粘塑性有限元法模拟了恒压和最佳加压规范下的超塑性充模胀形过程,并对比二者的结果,同时分析了m值对胀形的影响.
The optimum pressure norm in superplastic bulging with a die is determined by tracing the element with the largest strain rate and maintaining the strain rate at the optimum value, and the bulging processes under two kinds of pressure modes including cons
参考文献
| [1] | 宋玉泉,赵军吉林工业大学学报, 3(3),262(1985)[2]Yuquan Song,Jun Zhao.Mater.Sci.Eng,86,179(1987)[3]李园春,杜志孝,吴诗. 兵器材料科学与工程,18(3),39(1995)[4]S.Kobayashi, S.Oh,T.Altan,Metal Forming and the Finite Element Method (Oxfor University Press, New York,1989)p.120[5]杜志孝,李森泉,吴诗. 应用数学和力学,17(2),127(1996) |
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