Development of the crack-line-update method for two-dimensional piercing simulations

被引：2

作者：

Matsuno, T. ^{[1
,2
,3
]}

Takamura, M. ^{[2
]}

Mihara, S. ^{[2
]}

Koda, T. ^{[4
]}

Tsujioka, K. ^{[4
]}

机构：

[1] Tottori Univ, 4-101 Koyama Cho Minami, Tottori, Tottori 6808552, Japan

[2] RIKEN, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[3] Natl Inst Mat Sci, 1-2-1 Sengen, Tsukuba, Ibaraki 3050047, Japan

[4] Trial Pk Co Ltd, 2-3-13 Minami, Wako, Saitama 3510198, Japan

来源：

NUMISHEET 2018: 11TH INTERNATIONAL CONFERENCE AND WORKSHOP ON NUMERICAL SIMULATION OF 3D SHEET METAL FORMING PROCESSES | 2018年 / 1063卷

关键词：

HOLE;

D O I：

10.1088/1742-6596/1063/1/012157

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have developed the crack-line-update method for two-dimensional piercing simulations by a finite element method. This method is combined with a remeshing process involving an outer line and meshing. By using the crack-line-update method, crack lines, which are derived from a stress and strain analysis of the high-damage regions, are added to the outer line in every remeshing step. In this paper, we compare the simulations between the mesh deletion and crack-line-update methods. The crack-line-update method successfully simulated the arresting of cracks during the piercing process, whereas the mesh deletion method could not express such fracture behavior.

引用

页数：6

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