Evaluation of Springback for DP980 S Rail Using Anisotropic Hardening Models

被引：31

作者：

Choi, Jisik ^{[1
]}

Lee, Jinwoo ^{[2
]}

Bae, Gihyun ^{[3
]}

Barlat, Frederic ^{[1
]}

Lee, Myoung-Gyu ^{[4
]}

机构：

[1] Pohang Univ Sci & Technol, Grad Inst Ferrous Technol, Pohang 790784, South Korea

[2] Korea Inst Mat Sci, Mat Deformat Dept, Chang Won 51508, South Korea

[3] POSCO, Steel Solut Mkt Dept, Inchon 21985, South Korea

[4] Korea Univ, Dept Mat Sci & Engn, Seoul 02841, South Korea

来源：

JOM | 2016年 / 68卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

STRAIN CYCLIC PLASTICITY; ALUMINUM-ALLOY SHEETS; STRESS YIELD FUNCTION; SIMULATION; PART; EXTENSION; BEHAVIOR;

D O I：

10.1007/s11837-016-1924-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of anisotropic hardening models on springback of an S-rail part was investigated. Two advanced constitutive models based on distortional and kinematic hardening, which captured the Bauschinger effect, transient hardening, and permanent softening during strain path change, were implemented in a finite element (FE) code. In-plane compression-tension tests were performed to identify the model parameters. The springback of the S-rail after forming a 980 MPa dual-phase steel sheet sample was measured and analyzed using different hardening models. The comparison between experimental and FE results demonstrated that the advanced anisotropic hardening models, which are particularly suitable for non-proportional loading, significantly improved the springback prediction capability of an advanced high strength steel.

引用

页码：1850 / 1857

页数：8

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