Numerical and experimental determination of cut-edge after blanking of thin steel sheet of DP1000 within use of stress based damage model

被引：9

作者：

Behrens, Bernd-Arno ^{[1
]}

Bouguecha, Anas ^{[1
]}

Vucetic, Milan ^{[1
]}

Krimm, Richard ^{[1
]}

Hasselbusch, Tobias ^{[1
]}

Bonk, Christian ^{[1
]}

机构：

[1] Leibniz Univ Hannover, Inst Forming Technol & Machines, D-30823 Hannover, Germany

来源：

11TH INTERNATIONAL CONFERENCE ON TECHNOLOGY OF PLASTICITY, ICTP 2014 | 2014年 / 81卷

关键词：

Dual phase steel; Blanking; Damage; FE-simulation; Stack-compression test; Tensile test;

D O I：

10.1016/j.proeng.2014.10.200

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The proposed study focuses on blanking of thin steel sheets of Dogal1000DP +Z100MBO. Numerical and experimental investigations of the influence of clearance and punch speed on the cutting force and the geometry of the sheared edge were done. Tensile and stack compression test at elevated temperatures has been chosen to determine the flow and fracture behavior of Dogal1000DP +Z100MBO at different stress states. It is shown that the flow curve determined by stack compression test leads to better results in force - displacement prediction of a blanking process compared to determination of flow curve by tensile test. Stress based fracture criterion were chosen to describe damage behaviour. Moreover significant influence of fracture locus for negative stress triaxialities on the geometry of the numerically predicted sheared edge is shown. (C) 2014 Published by Elsevier Ltd.

引用

页码：1096 / 1101

页数：6

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